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# System prepended metadata

title: 'Agenda for XALT Mtg August 18 at 10:00 am US Central (15:00 UTC)'

---

# Agenda for XALT Mtg August 18 at 10:00 am US Central (15:00 UTC)
- Q&A
- XALT 2.10.41 released: See below for changes.
- What's New section added to  xalt.readthedocs.io
- Changing the way XALT installs
  - XALT will now use (xalt-2.10.41+) the **install** program
  - Rules `id -u` <= 500 => umask 022, otherwise user umask
  - Umask of 022 => mode = 755
  - Umask of 077 => mode = 700
  - A mode of 755 is for executable files, 644 for non-executable files
  - Sites can override with --with-mode=750 etc
- Presentation on how XALT "hijacks" the linking process
- Future Topics

## Attendees
- Robert McLay (TACC)
- Amit Ruhela (TACC)
- Ben Fulton (Indiana University)
- Lisa Childers (Argonne National Lab)
- Jon Roddon (UK: STFC)
- Brian Toonen (Argonne National Lab)

## Presentation:
- https://github.com/xalt/xalt/blob/master/my_docs/22/xalt_monthly_mtg_2022_08_18/presentation.pdf

## Discussion:
- Find breakover between User and Root types:
  - linux uses /etc/login.def and grep for UID_MIN 1000
  - MacOS does not have the /etc/login.def file
- Need to add where the link.\*.json file is written in ld.in flowchart.
- Does XALT's use of LD_PRELOAD (outside of linking) cause a problem
  - There may have been a problem with TotalView with earlier version of XALT or ALT.d but none have been reported.
- Will change ld.in to turn off LD_PRELOAD for xalt programs inside ld.in instead of for all of ld.in and the real ld.

## Next Meeting
- Sept. 15, 2022 at 10:00 am U.S. Central (15:00 UTC)