Date: Tue, 30 Dec 2025 14:39:43 -0800 From: Mark Millard <marklmi@yahoo.com> To: freebsd-arm <freebsd-arm@freebsd.org>, FreeBSD Current <freebsd-current@freebsd.org> Subject: Bug 292032 - armv7 on aarch64 (tested chroot, lib32) gets SIGSEGV for the likes of: gpart show [native armv7 kernel use contexts do not get any SIGSEGV's] Message-ID: <5F717E42-94A4-44E6-B3B1-B26836C1D32B@yahoo.com>
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The context here is official pkgbase distribution installation usage,
not personal builds. /usr/src/ is from the pkgbase installation, not
git use.
A backtrace from chroot use on aarch64 looks like:
Core was generated by `gpart show'.
Program terminated with signal SIGSEGV, Segmentation fault.
Address not mapped to object.
#0 0x200c5ef0 in delete_config (gp=0x2053c1dc) at /usr/src/lib/libgeom/geom_xml2tree.c:502
warning: Source file is more recent than executable.
502 LIST_REMOVE(cf, lg_config);
(gdb) bt
#0 0x200c5ef0 in delete_config (gp=0x2053c1dc) at /usr/src/lib/libgeom/geom_xml2tree.c:502
#1 geom_deletetree (gmp=gmp@entry=0xffffcb30) at /usr/src/lib/libgeom/geom_xml2tree.c:524
#2 0x204d2064 in gpart_show (req=<optimized out>, fl=<optimized out>) at /home/pkgbuild/worktrees/main/lib/geom/part/geom_part.c:808
#3 0x000230dc in run_command (argc=0, argv=<optimized out>) at /usr/src/sbin/geom/core/geom.c:497
#4 0x00022308 in main (argc=1, argv=0xffffdc5c) at /usr/src/sbin/geom/core/geom.c:861
Operation of the same armv7 world files in a booted armv7 kernel context
does not get any SIGSEGV's. This is true even using the files from the
same media moved from native use to a chroot usage context on aarch64.
On aarch64, the likes of:
# env GEOM_LIBRARY_PATH=/usr/lib32:/usr/lib32/geom /mnt/sbin/gpart show
also gets a SIGSEGV.
NOTE:
Be warned that inappropriate %ld formatting use was recently fixed and
caused some problems earlier in the execution, including SIGSEGV
behavior. Test with/after 2025-Dec-29's:
• git: faff7013187b - main - geom_part: Fix format string issues Dag-Erling Smørgrav
See:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=292032
===
Mark Millard
marklmi at yahoo.com
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