---
# System prepended metadata

title: Raport za okres 23.03.2021 - 29.03.2021
tags: [mimiker]

---

# Raport za okres 23.03.2021 - 29.03.2021

###### tags: `mimiker`

## Podsumowanie

:::info
Liczba przyznanych punktów. **Wypełnia prowadzący zajęcia!**

Pewna część punktów odzwierciedla liczbę godzin spędzonych na: programowaniu lub pisaniu pracy dyplomowej. Pozostałe punkty są ze efekty i _code review_. Efekt musi być podparty umieszczeniem kodu w `master` lub wykonaniu prezentacji w trakcie zajęć.
:::

:::spoiler
 - 8 punktów za 8h pracy własnej
 - 2 punkty za widoczne efekty pracy (prezentacja, zmiany w `master`, code review)
:::

|                       | punkty |
| ---------------------:| ------ |
|      Michał Błaszczyk |  8+2   |
|    Krzysztof Boroński |  8+0   |
|  Maksymilian Czudziak |  7+1   |
|          Paweł Jasiak |  8+1   |
|         Jakub Piecuch |  8+2   |
|      Wiktor Pilarczyk |  8+2   |
|       Jakub Urbańczyk |  8+1   |
|   Franciszek Zdobylak |  8+2   |

## Sprawozdania

:::info
Wypełniać przed przystąpieniem do pierwszych zajęć w tygodniu roboczym!

Należy określić liczbę godzin pracy własnej zaokrąglając w górę do liczby całkowitej. W sprawozdaniu należy krótko podsumować czy zajmowaliście się w poprzednim tygodniu. W szczególności należy podać _pull-request_'y, które weszły do głównej gałęzi repozytorium `mimiker`. Proszę również napisać co zamierzacie robić w nadchodzącym tygodniu. Można zawrzeć pytania, na które postaramy się odpowiedzieć w trakcie zajęć.
:::

:::warning
Proszę napisać sprawozdanie w taki sposób, żeby Piotr Witkowski mógł szybko przygotować podsumowanie z postępów w pracy i umieścić je na `mimiker.ii.uni.wroc.pl`.
:::

### Michał Błaszczyk

:::success
Liczba godzin: 15
:::

W masterze: [konserwacja systemu budowania](https://github.com/cahirwpz/mimiker/pull/1049)

Wyrosło: [qemu x86-64](https://github.com/cahirwpz/mimiker/pull/1059), [interfejs kontrolera hosta USB](https://github.com/cahirwpz/mimiker/pull/1061)

Review: [e.MMC interface](https://github.com/cahirwpz/mimiker/pull/1057)

Głównie walczyłem z AMD64 (jeszcze nie ma PR):
- kompiluję jądro
- dodałem `asm.h` z NetBSD
- dostarczyłem kikuty odpowiednich plików
- napisałem skrypt (Makefile) do budowania obrazu dysku: 
    - buduję standalone binarkę GRUB-a, 
    - wrzucam mimiker.elf i initrd.cpio do /EFI/mimiker

Plany:
Dalsze prace aby odpalić jądro pod QEMU x86-64 (głównie zaznajamnianie z Multiboot2 i GRUB-em).

Obserwacje:
W przypadku x86-64, opcja `-kernel` w QEMU bootuje do 32 bitów (wykorzystywane jest [x86/HVM ABI (Xen)](https://xenbits.xen.org/docs/unstable/misc/pvh.html)). Przykład użycia: [here](https://mimiker.ii.uni.wroc.pl/source/xref/qemu/tests/tcg/x86_64/system/boot.S?r=cb90ecf9).

### Krzysztof Boroński

:::success
Liczba godzin: 9
:::

W ubiegłym tygodniu pojawił się

* **PR** [1057](https://github.com/cahirwpz/mimiker/pull/1057)

W bieżącym tygodniu pojawi się jego aktualizacja, która wynika z pracy,
którą włożyłem podczas weekendu nad sterownikiem e.MMC.
Poza omówionymi na spotkaniu poprawkami, kilka pojawi się niewielkich zmian. Pojawi się również _DUŻY_ commit do [857](https://github.com/cahirwpz/mimiker/pull/859) (tj. zmiany w obrębie niemal całego kodu), którego wmerguję w gałąż [1057](https://github.com/cahirwpz/mimiker/pull/1057).


### Maksymilian Czudziak

:::success
Liczba godzin: 7
:::

Udało się zrobić drugą działającą wersję skryptu przerzucania dokumentów do GH Wiki [1051](https://github.com/cahirwpz/mimiker/pull/1051).
Podejmowałem pierwsze próby code review.
Poprawiałem ten 1051 po review.

### Paweł Jasiak

:::success
Liczba godzin: 10
:::

Robiłem ping-ponga z KASAN [#1047](https://github.com/cahirwpz/mimiker/pull/1047) - jest już okejka od Kuby i Franka.
Usunąłem rwlocki (w masterze) [1058](https://github.com/cahirwpz/mimiker/pull/1058).
_Próbowałem_ pomóc z [#1051](https://github.com/cahirwpz/mimiker/pull/1051) ale chyba nie potrafię tłumaczyć.
Zwiększyłem stos dla 64 bitowych architektur [#1064](https://github.com/cahirwpz/mimiker/pull/1064).

Jakieś code review.

~~Co robi: `assert(bt->bt_size == align(size, vm->vm_quantum));` w kodzie vmem (`vmem_free`) bo przez to build KASAN popełnia samobójstwo.~~

Pliki .mk mają zepsute formatowanie.

Dlaczego `kmem_alloc` woła `kmem_alloc`??? (przez to nie przechodzą testy pod KASAN)

```
#0  halt () at /home/pjas/mimiker-kasan-3/sys/kern/klog.c:154
#1  0xffff000000233520 in klog_assert (origin=origin@entry=KL_KMEM, file=file@entry=0xffff00000025cd80 "/home/pjas/mimiker-kasan-3/sys/kern/kmem.c", line=line@entry=0x7f, expr=expr@entry=0xffff00000025d120 "!(flags & M_NOGROW)") at /home/pjas/mimiker-kasan-3/sys/kern/klog.c:174
#2  0xffff000000232af8 in kmem_alloc (size=size@entry=0x1000, flags=flags@entry=(M_ZERO | M_NOGROW)) at /home/pjas/mimiker-kasan-3/sys/kern/kmem.c:127
#3  0xffff00000022e63c in pool_alloc (pool=0xffff0000002a35a0 <BOOT_ARENA+1440>, flags=flags@entry=0x6) at /home/pjas/mimiker-kasan-3/sys/kern/pool.c:137
#4  0xffff00000020d7fc in vmem_alloc (vm=0xffff0000002a5960 <BOOT_ARENA+10592>, size=size@entry=0x1000, addrp=addrp@entry=0xffff000002f38920, flags=flags@entry=M_NOGROW) at /home/pjas/mimiker-kasan-3/sys/kern/vmem.c:267
#5  0xffff0000002325bc in kva_alloc (size=size@entry=0x1000) at /home/pjas/mimiker-kasan-3/sys/kern/kmem.c:41
#6  0xffff000000232a98 in kmem_alloc (size=size@entry=0x1000, flags=flags@entry=M_ZERO) at /home/pjas/mimiker-kasan-3/sys/kern/kmem.c:129
#7  0xffff00000022e63c in pool_alloc (pool=0xffff0000002a4360 <BOOT_ARENA+4960>, flags=flags@entry=0x2) at /home/pjas/mimiker-kasan-3/sys/kern/pool.c:137
#8  0xffff00000021e978 in thread_create (name=name@entry=0xffff00000025e880 "init", fn=fn@entry=0xffff000000246f04 <utest_generic_thread>, arg=arg@entry=0xffff000000264860, prio=0xff) at /home/pjas/mimiker-kasan-3/sys/kern/thread.c:81
#9  0xffff00000023550c in do_fork (start=start@entry=0xffff000000246f04 <utest_generic_thread>, arg=arg@entry=0xffff000000264860, cldpidp=cldpidp@entry=0xffff000002f38ad0) at /home/pjas/mimiker-kasan-3/sys/kern/fork.c:35
#10 0xffff000000246424 in utest_generic (name=name@entry=0xffff000000264860 "session_basic", status_success=status_success@entry=0x0) at /home/pjas/mimiker-kasan-3/sys/tests/utest.c:31
#11 0xffff000000246d5c in utest_test_session_basic () at /home/pjas/mimiker-kasan-3/sys/tests/utest.c:161
#12 0xffff000000231fcc in run_test (t=0xffff000000281c20 <user_session_basic_test>) at /home/pjas/mimiker-kasan-3/sys/kern/ktest.c:73
#13 0xffff00000023220c in run_all_tests () at /home/pjas/mimiker-kasan-3/sys/kern/ktest.c:129
#14 0xffff0000002323b0 in ktest_main (test=test@entry=0xffff00000029bc15 <_stack0+7189> "all") at /home/pjas/mimiker-kasan-3/sys/kern/ktest.c:166
#15 0xffff000000231b7c in start_init (arg=<optimized out>) at /home/pjas/mimiker-kasan-3/sys/kern/main.c:68
#16 0xffff00000021eba4 in thread_self () at /home/pjas/mimiker-kasan-3/sys/kern/thread.c:138
```

### Jakub Piecuch

:::success
Liczba godzin: ? (wpisałem 100%)
:::

Weszły:
- [#1024](https://github.com/cahirwpz/mimiker/pull/1024) - `tetris` - można sobie pograć
- [#1046](https://github.com/cahirwpz/mimiker/pull/1046) - naprawa zachowania funkcji `signal()`
- [#1053](https://github.com/cahirwpz/mimiker/pull/1053) - możliwość cofania operacji `uiomove()`
- [#1055](https://github.com/cahirwpz/mimiker/pull/1055) - ustawianie poprawnego rozmiaru okna terminala. Dzięki temu `tetris` pojawia się na środku ekranu.
- [#1056](https://github.com/cahirwpz/mimiker/pull/1056) - drobna asercja

Review:
- [#1047](https://github.com/cahirwpz/mimiker/pull/1047) (KASAN dla AArch64) wygląda dobrze
- Parę małych uwag do [#867](https://github.com/cahirwpz/mimiker/pull/867) (KCSAN)

### Wiktor Pilarczyk

:::success
Liczba godzin: 10
:::

W tym tygodniu pracowałem nad:
- [Function instrumentation for kgprof](https://github.com/cahirwpz/mimiker/pull/1062) - ten PR jest kontynuacją pracy nad kgprofem, który opisany jest częściowo poniżej - za pomocą instrumentalizacji będziemy w stanie zbudować graf wywołań
- [Build and run test for KGPROF flag - MIPS](https://github.com/cahirwpz/mimiker/pull/1063)

Weszło:
- [Statclock and gprof structures initialization](https://github.com/cahirwpz/mimiker/pull/979) - umożliwia uruchomienie komendy kgmon pod gdb, która zapisuje informacje w pliku gmon.out zebrane przez `kgprof_tick` w `stat_clock`'u (zegarze służącym do profilowania). To umożliwia na skorzystanie już na serwerze mimiker'a z komendy `gprof sys/mimiker.elf`, możemy heurestycznie oszacować ile czasu spędziliśmy w poszczególnych funkcjach przykładowy output znajduje się poniżej:
:::spoiler
![](https://i.imgur.com/rnkZLjI.png)

Flat profile:

Each sample counts as 0.01 seconds.
  %   cumulative   self              self     total           
 time   seconds   seconds    calls  Ts/call  Ts/call  name    
 53.71     13.38    13.38                             cpu_intr_enable
 10.40     15.97     2.59                             bzero
  4.46     17.08     1.11                             bcopy
  2.29     17.65     0.57                             _spin_lock
  2.05     18.16     0.51                             _mtx_lock
  2.05     18.67     0.51                             test_kmem
  1.81     19.12     0.45                             memcpy
  1.77     19.56     0.44                             mtx_owned
  1.73     19.99     0.43                             mtx_unlock
  1.69     20.41     0.42                             intr_enable
  1.49     20.78     0.37                             spin_unlock
  1.45     21.14     0.36                             pool_alloc
  1.36     21.48     0.34                             thread_self
  1.32     21.81     0.33                             intr_disable
  1.32     22.14     0.33                             sched_run
  0.68     22.31     0.17                             vm_object_add_page
  0.64     22.47     0.16                             pmap_add_pde
  0.52     22.60     0.13                             cpu_intr_disable
  0.48     22.72     0.12                             klog_append
  0.48     22.84     0.12                             vm_page_find
  0.40     22.94     0.10                             pm_free_from_seg
  0.36     23.03     0.09                             pmap_extract_nolock
  0.32     23.11     0.08                             find_fit
  0.32     23.19     0.08                             pm_split_page
  0.32     23.27     0.08                             pmap_enter
  0.32     23.35     0.08                             pmap_modify_flags
  0.32     23.43     0.08                             test_thread
  0.28     23.50     0.07                             tlb_exception_handler
  0.28     23.57     0.07                             vm_object_find_page
  0.24     23.63     0.06                             pm_find_buddy
  0.20     23.68     0.05                             pmap_pte_write
  0.16     23.72     0.04                             pmap_lookup
  0.16     23.76     0.04                             pmap_pte_read
  0.16     23.80     0.04                             thread_yield
  0.16     23.84     0.04                             vm_page_alloc
  0.16     23.88     0.04                             vm_page_free_nolock
  0.12     23.91     0.03                             _pool_free
  0.12     23.94     0.03                             binuptime
  0.12     23.97     0.03                             free
  0.12     24.00     0.03                             kern_trap_handler
  0.12     24.03     0.03                             mips_timer_gettime
  0.12     24.06     0.03                             pmap_emulate_bits
  0.12     24.09     0.03                             sched_switch
  0.12     24.12     0.03                             vm_page_fault
  0.08     24.14     0.02                             fd_alloc
  0.08     24.16     0.02                             ksiginfo_copy
  0.08     24.18     0.02                             kva_find_page
  0.08     24.20     0.02                             memset
  0.08     24.22     0.02                             on_exc_leave
  0.08     24.24     0.02                             pm_take_page
  0.08     24.26     0.02                             pmap_extract
  0.08     24.28     0.02                             pmap_kenter
  0.08     24.30     0.02                             proc_sendsig
  0.08     24.32     0.02                             pv_add
  0.08     24.34     0.02                             vm_map_object_dump
  0.08     24.36     0.02                             vm_map_start
  0.08     24.38     0.02                             vm_object_free
  0.08     24.40     0.02                             vm_object_remove_pages_nolock
  0.04     24.41     0.01                             bin
  0.04     24.42     0.01                             componentname_equal
  0.04     24.43     0.01                             copyin
  0.04     24.44     0.01                             copyout_vmspace
  0.04     24.45     0.01                             copystr
  0.04     24.46     0.01                             devfs_find_child
  0.04     24.47     0.01                             fdt_subnode_offset_namelen
  0.04     24.48     0.01                             fdtab_get_file
  0.04     24.49     0.01                             initrd_vnode_getattr
  0.04     24.50     0.01                             initrd_vnode_lookup
  0.04     24.51     0.01                             kfree
  0.04     24.52     0.01                             kmem_map_contig
  0.04     24.53     0.01                             kva_map
  0.04     24.54     0.01                             kva_unmap
  0.04     24.55     0.01                             on_user_exc_leave
  0.04     24.56     0.01                             pm_merge_buddies
  0.04     24.57     0.01                             pmap_delete
  0.04     24.58     0.01                             pmap_kernel
  0.04     24.59     0.01                             pmap_set_modified
  0.04     24.60     0.01                             pool_free
  0.04     24.61     0.01                             preempt_disable
  0.04     24.62     0.01                             preempt_disabled
  0.04     24.63     0.01                             preempt_enable
  0.04     24.64     0.01                             produce
  0.04     24.65     0.01                             pv_find
  0.04     24.66     0.01                             ringbuf_putnb
  0.04     24.67     0.01                             strlcpy
  0.04     24.68     0.01                             strlen
  0.04     24.69     0.01                             strncmp
  0.04     24.70     0.01                             thread_create
  0.04     24.71     0.01                             tmpfs_vop_getattr
  0.04     24.72     0.01                             tmpfs_vop_reclaim
  0.04     24.73     0.01                             try_load_word
  0.04     24.74     0.01                             try_store_word
  0.04     24.75     0.01                             tty_output
  0.04     24.76     0.01                             tty_outq_write
  0.04     24.77     0.01                             turnstile_wait
  0.04     24.78     0.01                             uiomove
  0.04     24.79     0.01                             vfs_namelookup
  0.04     24.80     0.01                             vm_map_address_p
  0.04     24.81     0.01                             vm_map_end
  0.04     24.82     0.01                             vm_map_find_segment
  0.04     24.83     0.01                             vm_map_new
  0.04     24.84     0.01                             vm_map_unlock
  0.04     24.85     0.01                             vm_object_alloc
  0.04     24.86     0.01                             vm_object_remove_pages
  0.04     24.87     0.01                             vm_page_free
  0.04     24.88     0.01                             vnode_drop
  0.04     24.89     0.01                             vnode_unlock
  0.04     24.90     0.01                             vnr_lookup_once
  0.04     24.91     0.01                             vnr_parse_component

 %         the percentage of the total running time of the
time       program used by this function.

cumulative a running sum of the number of seconds accounted
 seconds   for by this function and those listed above it.

 self      the number of seconds accounted for by this
seconds    function alone.  This is the major sort for this
           listing.

calls      the number of times this function was invoked, if
           this function is profiled, else blank.

 self      the average number of milliseconds spent in this
ms/call    function per call, if this function is profiled,
	   else blank.

 total     the average number of milliseconds spent in this
ms/call    function and its descendents per call, if this
	   function is profiled, else blank.

name       the name of the function.  This is the minor sort
           for this listing. The index shows the location of
	   the function in the gprof listing. If the index is
	   in parenthesis it shows where it would appear in
	   the gprof listing if it were to be printed.

Copyright (C) 2012-2018 Free Software Foundation, Inc.

Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.

		     Call graph (explanation follows)


granularity: each sample hit covers 4 byte(s) for 0.04% of 24.91 seconds

index % time    self  children    called     name
                                                 <spontaneous>
[1]     53.7   13.38    0.00                 cpu_intr_enable [1]
-----------------------------------------------
                                                 <spontaneous>
[2]     10.4    2.59    0.00                 bzero [2]
-----------------------------------------------
                                                 <spontaneous>
[3]      4.5    1.11    0.00                 bcopy [3]
-----------------------------------------------
                                                 <spontaneous>
[4]      2.3    0.57    0.00                 _spin_lock [4]
-----------------------------------------------
                                                 <spontaneous>
[5]      2.0    0.51    0.00                 test_kmem [5]
-----------------------------------------------
                                                 <spontaneous>
[6]      2.0    0.51    0.00                 _mtx_lock [6]
-----------------------------------------------
                                                 <spontaneous>
[7]      1.8    0.45    0.00                 memcpy [7]
-----------------------------------------------
                                                 <spontaneous>
[8]      1.8    0.44    0.00                 mtx_owned [8]
-----------------------------------------------
                                                 <spontaneous>
[9]      1.7    0.43    0.00                 mtx_unlock [9]
-----------------------------------------------
                                                 <spontaneous>
[10]     1.7    0.42    0.00                 intr_enable [10]
-----------------------------------------------
                                                 <spontaneous>
[11]     1.5    0.37    0.00                 spin_unlock [11]
-----------------------------------------------
                                                 <spontaneous>
[12]     1.4    0.36    0.00                 pool_alloc [12]
-----------------------------------------------
                                                 <spontaneous>
[13]     1.4    0.34    0.00                 thread_self [13]
-----------------------------------------------
                                                 <spontaneous>
[14]     1.3    0.33    0.00                 intr_disable [14]
-----------------------------------------------
                                                 <spontaneous>
[15]     1.3    0.33    0.00                 sched_run [15]
-----------------------------------------------
                                                 <spontaneous>
[16]     0.7    0.17    0.00                 vm_object_add_page [16]
-----------------------------------------------
                                                 <spontaneous>
[17]     0.6    0.16    0.00                 pmap_add_pde [17]
-----------------------------------------------
                                                 <spontaneous>
[18]     0.5    0.13    0.00                 cpu_intr_disable [18]
-----------------------------------------------
                                                 <spontaneous>
[19]     0.5    0.12    0.00                 klog_append [19]
-----------------------------------------------
                                                 <spontaneous>
[20]     0.5    0.12    0.00                 vm_page_find [20]
-----------------------------------------------
                                                 <spontaneous>
[21]     0.4    0.10    0.00                 pm_free_from_seg [21]
-----------------------------------------------
                                                 <spontaneous>
[22]     0.4    0.09    0.00                 pmap_extract_nolock [22]
-----------------------------------------------
                                                 <spontaneous>
[23]     0.3    0.08    0.00                 find_fit [23]
-----------------------------------------------
                                                 <spontaneous>
[24]     0.3    0.08    0.00                 pm_split_page [24]
-----------------------------------------------
                                                 <spontaneous>
[25]     0.3    0.08    0.00                 pmap_enter [25]
-----------------------------------------------
                                                 <spontaneous>
[26]     0.3    0.08    0.00                 pmap_modify_flags [26]
-----------------------------------------------
                                                 <spontaneous>
[27]     0.3    0.08    0.00                 test_thread [27]
-----------------------------------------------
                                                 <spontaneous>
[28]     0.3    0.07    0.00                 tlb_exception_handler [28]
-----------------------------------------------
                                                 <spontaneous>
[29]     0.3    0.07    0.00                 vm_object_find_page [29]
-----------------------------------------------
                                                 <spontaneous>
[30]     0.2    0.06    0.00                 pm_find_buddy [30]
-----------------------------------------------
                                                 <spontaneous>
[31]     0.2    0.05    0.00                 pmap_pte_write [31]
-----------------------------------------------
                                                 <spontaneous>
[32]     0.2    0.04    0.00                 pmap_lookup [32]
-----------------------------------------------
                                                 <spontaneous>
[33]     0.2    0.04    0.00                 pmap_pte_read [33]
-----------------------------------------------
                                                 <spontaneous>
[34]     0.2    0.04    0.00                 thread_yield [34]
-----------------------------------------------
                                                 <spontaneous>
[35]     0.2    0.04    0.00                 vm_page_alloc [35]
-----------------------------------------------
                                                 <spontaneous>
[36]     0.2    0.04    0.00                 vm_page_free_nolock [36]
-----------------------------------------------
                                                 <spontaneous>
[37]     0.1    0.03    0.00                 binuptime [37]
-----------------------------------------------
                                                 <spontaneous>
[38]     0.1    0.03    0.00                 free [38]
-----------------------------------------------
                                                 <spontaneous>
[39]     0.1    0.03    0.00                 kern_trap_handler [39]
-----------------------------------------------
                                                 <spontaneous>
[40]     0.1    0.03    0.00                 mips_timer_gettime [40]
-----------------------------------------------
                                                 <spontaneous>
[41]     0.1    0.03    0.00                 pmap_emulate_bits [41]
-----------------------------------------------
                                                 <spontaneous>
[42]     0.1    0.03    0.00                 sched_switch [42]
-----------------------------------------------
                                                 <spontaneous>
[43]     0.1    0.03    0.00                 vm_page_fault [43]
-----------------------------------------------
                                                 <spontaneous>
[44]     0.1    0.03    0.00                 _pool_free [44]
-----------------------------------------------
                                                 <spontaneous>
[45]     0.1    0.02    0.00                 fd_alloc [45]
-----------------------------------------------
                                                 <spontaneous>
[46]     0.1    0.02    0.00                 ksiginfo_copy [46]
-----------------------------------------------
                                                 <spontaneous>
[47]     0.1    0.02    0.00                 kva_find_page [47]
-----------------------------------------------
                                                 <spontaneous>
[48]     0.1    0.02    0.00                 memset [48]
-----------------------------------------------
                                                 <spontaneous>
[49]     0.1    0.02    0.00                 on_exc_leave [49]
-----------------------------------------------
                                                 <spontaneous>
[50]     0.1    0.02    0.00                 pm_take_page [50]
-----------------------------------------------
                                                 <spontaneous>
[51]     0.1    0.02    0.00                 pmap_extract [51]
-----------------------------------------------
                                                 <spontaneous>
[52]     0.1    0.02    0.00                 pmap_kenter [52]
-----------------------------------------------
                                                 <spontaneous>
[53]     0.1    0.02    0.00                 proc_sendsig [53]
-----------------------------------------------
                                                 <spontaneous>
[54]     0.1    0.02    0.00                 pv_add [54]
-----------------------------------------------
                                                 <spontaneous>
[55]     0.1    0.02    0.00                 vm_map_object_dump [55]
-----------------------------------------------
                                                 <spontaneous>
[56]     0.1    0.02    0.00                 vm_map_start [56]
-----------------------------------------------
                                                 <spontaneous>
[57]     0.1    0.02    0.00                 vm_object_free [57]
-----------------------------------------------
                                                 <spontaneous>
[58]     0.1    0.02    0.00                 vm_object_remove_pages_nolock [58]
-----------------------------------------------
                                                 <spontaneous>
[59]     0.0    0.01    0.00                 bin [59]
-----------------------------------------------
                                                 <spontaneous>
[60]     0.0    0.01    0.00                 componentname_equal [60]
-----------------------------------------------
                                                 <spontaneous>
[61]     0.0    0.01    0.00                 copyin [61]
-----------------------------------------------
                                                 <spontaneous>
[62]     0.0    0.01    0.00                 copyout_vmspace [62]
-----------------------------------------------
                                                 <spontaneous>
[63]     0.0    0.01    0.00                 copystr [63]
-----------------------------------------------
                                                 <spontaneous>
[64]     0.0    0.01    0.00                 devfs_find_child [64]
-----------------------------------------------
                                                 <spontaneous>
[65]     0.0    0.01    0.00                 fdt_subnode_offset_namelen [65]
-----------------------------------------------
                                                 <spontaneous>
[66]     0.0    0.01    0.00                 fdtab_get_file [66]
-----------------------------------------------
                                                 <spontaneous>
[67]     0.0    0.01    0.00                 initrd_vnode_getattr [67]
-----------------------------------------------
                                                 <spontaneous>
[68]     0.0    0.01    0.00                 initrd_vnode_lookup [68]
-----------------------------------------------
                                                 <spontaneous>
[69]     0.0    0.01    0.00                 kfree [69]
-----------------------------------------------
                                                 <spontaneous>
[70]     0.0    0.01    0.00                 kmem_map_contig [70]
-----------------------------------------------
                                                 <spontaneous>
[71]     0.0    0.01    0.00                 kva_map [71]
-----------------------------------------------
                                                 <spontaneous>
[72]     0.0    0.01    0.00                 kva_unmap [72]
-----------------------------------------------
                                                 <spontaneous>
[73]     0.0    0.01    0.00                 on_user_exc_leave [73]
-----------------------------------------------
                                                 <spontaneous>
[74]     0.0    0.01    0.00                 pm_merge_buddies [74]
-----------------------------------------------
                                                 <spontaneous>
[75]     0.0    0.01    0.00                 pmap_delete [75]
-----------------------------------------------
                                                 <spontaneous>
[76]     0.0    0.01    0.00                 pmap_kernel [76]
-----------------------------------------------
                                                 <spontaneous>
[77]     0.0    0.01    0.00                 pmap_set_modified [77]
-----------------------------------------------
                                                 <spontaneous>
[78]     0.0    0.01    0.00                 pool_free [78]
-----------------------------------------------
                                                 <spontaneous>
[79]     0.0    0.01    0.00                 preempt_disable [79]
-----------------------------------------------
                                                 <spontaneous>
[80]     0.0    0.01    0.00                 preempt_disabled [80]
-----------------------------------------------
                                                 <spontaneous>
[81]     0.0    0.01    0.00                 preempt_enable [81]
-----------------------------------------------
                                                 <spontaneous>
[82]     0.0    0.01    0.00                 produce [82]
-----------------------------------------------
                                                 <spontaneous>
[83]     0.0    0.01    0.00                 pv_find [83]
-----------------------------------------------
                                                 <spontaneous>
[84]     0.0    0.01    0.00                 ringbuf_putnb [84]
-----------------------------------------------
                                                 <spontaneous>
[85]     0.0    0.01    0.00                 strlcpy [85]
-----------------------------------------------
                                                 <spontaneous>
[86]     0.0    0.01    0.00                 strlen [86]
-----------------------------------------------
                                                 <spontaneous>
[87]     0.0    0.01    0.00                 strncmp [87]
-----------------------------------------------
                                                 <spontaneous>
[88]     0.0    0.01    0.00                 thread_create [88]
-----------------------------------------------
                                                 <spontaneous>
[89]     0.0    0.01    0.00                 tmpfs_vop_getattr [89]
-----------------------------------------------
                                                 <spontaneous>
[90]     0.0    0.01    0.00                 tmpfs_vop_reclaim [90]
-----------------------------------------------
                                                 <spontaneous>
[91]     0.0    0.01    0.00                 try_load_word [91]
-----------------------------------------------
                                                 <spontaneous>
[92]     0.0    0.01    0.00                 try_store_word [92]
-----------------------------------------------
                                                 <spontaneous>
[93]     0.0    0.01    0.00                 tty_output [93]
-----------------------------------------------
                                                 <spontaneous>
[94]     0.0    0.01    0.00                 tty_outq_write [94]
-----------------------------------------------
                                                 <spontaneous>
[95]     0.0    0.01    0.00                 turnstile_wait [95]
-----------------------------------------------
                                                 <spontaneous>
[96]     0.0    0.01    0.00                 uiomove [96]
-----------------------------------------------
                                                 <spontaneous>
[97]     0.0    0.01    0.00                 vfs_namelookup [97]
-----------------------------------------------
                                                 <spontaneous>
[98]     0.0    0.01    0.00                 vm_map_address_p [98]
-----------------------------------------------
                                                 <spontaneous>
[99]     0.0    0.01    0.00                 vm_map_end [99]
-----------------------------------------------
                                                 <spontaneous>
[100]    0.0    0.01    0.00                 vm_map_find_segment [100]
-----------------------------------------------
                                                 <spontaneous>
[101]    0.0    0.01    0.00                 vm_map_new [101]
-----------------------------------------------
                                                 <spontaneous>
[102]    0.0    0.01    0.00                 vm_map_unlock [102]
-----------------------------------------------
                                                 <spontaneous>
[103]    0.0    0.01    0.00                 vm_object_alloc [103]
-----------------------------------------------
                                                 <spontaneous>
[104]    0.0    0.01    0.00                 vm_object_remove_pages [104]
-----------------------------------------------
                                                 <spontaneous>
[105]    0.0    0.01    0.00                 vm_page_free [105]
-----------------------------------------------
                                                 <spontaneous>
[106]    0.0    0.01    0.00                 vnode_drop [106]
-----------------------------------------------
                                                 <spontaneous>
[107]    0.0    0.01    0.00                 vnode_unlock [107]
-----------------------------------------------
                                                 <spontaneous>
[108]    0.0    0.01    0.00                 vnr_lookup_once [108]
-----------------------------------------------
                                                 <spontaneous>
[109]    0.0    0.01    0.00                 vnr_parse_component [109]
-----------------------------------------------

 This table describes the call tree of the program, and was sorted by
 the total amount of time spent in each function and its children.

 Each entry in this table consists of several lines.  The line with the
 index number at the left hand margin lists the current function.
 The lines above it list the functions that called this function,
 and the lines below it list the functions this one called.
 This line lists:
     index	A unique number given to each element of the table.
		Index numbers are sorted numerically.
		The index number is printed next to every function name so
		it is easier to look up where the function is in the table.

     % time	This is the percentage of the `total' time that was spent
		in this function and its children.  Note that due to
		different viewpoints, functions excluded by options, etc,
		these numbers will NOT add up to 100%.

     self	This is the total amount of time spent in this function.

     children	This is the total amount of time propagated into this
		function by its children.

     called	This is the number of times the function was called.
		If the function called itself recursively, the number
		only includes non-recursive calls, and is followed by
		a `+' and the number of recursive calls.

     name	The name of the current function.  The index number is
		printed after it.  If the function is a member of a
		cycle, the cycle number is printed between the
		function's name and the index number.


 For the function's parents, the fields have the following meanings:

     self	This is the amount of time that was propagated directly
		from the function into this parent.

     children	This is the amount of time that was propagated from
		the function's children into this parent.

     called	This is the number of times this parent called the
		function `/' the total number of times the function
		was called.  Recursive calls to the function are not
		included in the number after the `/'.

     name	This is the name of the parent.  The parent's index
		number is printed after it.  If the parent is a
		member of a cycle, the cycle number is printed between
		the name and the index number.

 If the parents of the function cannot be determined, the word
 `<spontaneous>' is printed in the `name' field, and all the other
 fields are blank.

 For the function's children, the fields have the following meanings:

     self	This is the amount of time that was propagated directly
		from the child into the function.

     children	This is the amount of time that was propagated from the
		child's children to the function.

     called	This is the number of times the function called
		this child `/' the total number of times the child
		was called.  Recursive calls by the child are not
		listed in the number after the `/'.

     name	This is the name of the child.  The child's index
		number is printed after it.  If the child is a
		member of a cycle, the cycle number is printed
		between the name and the index number.

 If there are any cycles (circles) in the call graph, there is an
 entry for the cycle-as-a-whole.  This entry shows who called the
 cycle (as parents) and the members of the cycle (as children.)
 The `+' recursive calls entry shows the number of function calls that
 were internal to the cycle, and the calls entry for each member shows,
 for that member, how many times it was called from other members of
 the cycle.

Copyright (C) 2012-2018 Free Software Foundation, Inc.

Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.

Index by function name

   [6] _mtx_lock              [73] on_user_exc_leave      [88] thread_create
  [44] _pool_free             [30] pm_find_buddy          [13] thread_self
   [4] _spin_lock             [21] pm_free_from_seg       [34] thread_yield
   [3] bcopy                  [74] pm_merge_buddies       [28] tlb_exception_handler (trap.c)
  [59] bin                    [24] pm_split_page          [89] tmpfs_vop_getattr
  [37] binuptime              [50] pm_take_page           [90] tmpfs_vop_reclaim
   [2] bzero                  [17] pmap_add_pde           [91] try_load_word
  [60] componentname_equal    [75] pmap_delete            [92] try_store_word
  [61] copyin                 [41] pmap_emulate_bits      [93] tty_output
  [62] copyout_vmspace        [25] pmap_enter             [94] tty_outq_write
  [63] copystr                [51] pmap_extract           [95] turnstile_wait
  [18] cpu_intr_disable       [22] pmap_extract_nolock    [96] uiomove
   [1] cpu_intr_enable        [52] pmap_kenter            [97] vfs_namelookup
  [64] devfs_find_child       [76] pmap_kernel            [98] vm_map_address_p
  [45] fd_alloc               [32] pmap_lookup            [99] vm_map_end
  [65] fdt_subnode_offset_namelen [26] pmap_modify_flags [100] vm_map_find_segment
  [66] fdtab_get_file         [33] pmap_pte_read         [101] vm_map_new
  [23] find_fit               [31] pmap_pte_write         [55] vm_map_object_dump
  [38] free                   [77] pmap_set_modified      [56] vm_map_start
  [67] initrd_vnode_getattr   [12] pool_alloc            [102] vm_map_unlock
  [68] initrd_vnode_lookup    [78] pool_free              [16] vm_object_add_page
  [14] intr_disable           [79] preempt_disable       [103] vm_object_alloc
  [10] intr_enable            [80] preempt_disabled       [29] vm_object_find_page
  [39] kern_trap_handler (trap.c) [81] preempt_enable     [57] vm_object_free
  [69] kfree                  [53] proc_sendsig          [104] vm_object_remove_pages
  [19] klog_append            [82] produce                [58] vm_object_remove_pages_nolock
  [70] kmem_map_contig        [54] pv_add                 [35] vm_page_alloc
  [46] ksiginfo_copy          [83] pv_find                [43] vm_page_fault
  [47] kva_find_page          [84] ringbuf_putnb          [20] vm_page_find
  [71] kva_map                [15] sched_run             [105] vm_page_free
  [72] kva_unmap              [42] sched_switch           [36] vm_page_free_nolock
   [7] memcpy                 [11] spin_unlock           [106] vnode_drop
  [48] memset                 [85] strlcpy               [107] vnode_unlock
  [40] mips_timer_gettime (timer.c) [86] strlen          [108] vnr_lookup_once
   [8] mtx_owned              [87] strncmp               [109] vnr_parse_component
   [9] mtx_unlock              [5] test_kmem
  [49] on_exc_leave           [27] test_thread

:::



CR: [#1053](https://github.com/cahirwpz/mimiker/pull/1053), [#1056](https://github.com/cahirwpz/mimiker/pull/1056), [#1060](https://github.com/cahirwpz/mimiker/pull/1060)

### Jakub Urbańczyk

:::success
Liczba godzin: 8
:::

- Poprawki do KCSAN po CR
- Dalszy research związany z obsługą czcionek i keymap


### Franciszek Zdobylak

:::success
Liczba godzin: 10
:::

W końcu weszło [1043] -- Tworzenie commandline'a dla ps'a.
(Wysłałem proste demo do Pana PWita).

Review [1047] (KASAN dla arma), [1046] (restartowanie syscalli), [1053] (uio restore)

Większość czasu poświęciłem na przygotowanie prezentacji o UVM.

Dokończyłem rozdział pracy licencjackiej.

[1043]:https://github.com/cahirwpz/mimiker/pull/1043 
[1046]:https://github.com/cahirwpz/mimiker/pull/1046 
[1047]:https://github.com/cahirwpz/mimiker/pull/1047 
[1053]:https://github.com/cahirwpz/mimiker/pull/1053 