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Bug#1100821: marked as done (gcc-14 version 14.2.0-18 causes glibc to be miscompiled on armhf)

Your message dated Thu, 20 Mar 2025 19:11:22 +0100
with message-id <Z9xaSlUzBkvgW8h8@aurel32.net>
and subject line Re: Bug#1100805: gcc-14 version 14.2.0-18 causes glibc to be miscompiled on armhf
has caused the Debian Bug report #1100821,
regarding gcc-14 version 14.2.0-18 causes glibc to be miscompiled on armhf
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
1100821: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1100821
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: gcc-14
Version: 14.2.0-17
Severity: serious
Justification: breaks autopkgtest of unrelated package
X-Debbugs-Cc: debian-glibc@lists.debian.org, debian-arm@lists.debian.org
Control: affects -1 src:glibc
Control: affects -1 src:libinsane

Hi,

When glibc is compiled with gcc-14 >= 14.2.0-18, the libinsane
autopkgtest fails on armhf [1]:

| 207s autopkgtest [07:54:23]: test workaround-one-page-flatbed: [-----------------------
| 207s Building
| 208s Reducing file descriptors limit
| 208s Running test with valgrind
| 208s ==6914== Memcheck, a memory error detector
| 208s ==6914== Copyright (C) 2002-2024, and GNU GPL'd, by Julian Seward et al.
| 208s ==6914== Using Valgrind-3.24.0 and LibVEX; rerun with -h for copyright info
| 208s ==6914== Command: /tmp/autopkgtest-lxc.6v7pbw_c/downtmp/autopkgtest_tmp/tests_workaround_one_page_flatbed
| 208s ==6914==
| 208s      
| 208s      
| 208s      CUnit - A unit testing framework for C - Version 2.1-3
| 208s      http://cunit.sourceforge.net/
| 208s
| 208s
| 208s Suite: Workaround_one_page_flatbed
| 209s   Test: tests_one_page_flatbed() ...==6914== Source and destination overlap in memcpy(0x6debcf0, 0x6debcf1, 5)
| 209s ==6914==    at 0x4881648: memcpy (in /usr/libexec/valgrind/vgpreload_memcheck-arm-linux.so)
| 209s ==6914==
| 209s passed
| 209s
| 209s Run Summary:    Type  Total    Ran Passed Failed Inactive
| 209s               suites      1      1    n/a      0        0
| 209s                tests      1      1      1      0        0
| 209s              asserts     30     30     30      0      n/a
| 209s
| 209s Elapsed time =    0.111 seconds
| 209s ==6914==
| 209s ==6914== HEAP SUMMARY:
| 209s ==6914==     in use at exit: 0 bytes in 0 blocks
| 209s ==6914==   total heap usage: 292 allocs, 292 frees, 41,951 bytes allocated
| 209s ==6914==
| 209s ==6914== All heap blocks were freed -- no leaks are possible
| 209s ==6914==
| 209s ==6914== For lists of detected and suppressed errors, rerun with: -s
| 209s ==6914== ERROR SUMMARY: 2 errors from 1 contexts (suppressed: 1021 from 69)
| 209s autopkgtest [07:54:25]: test workaround-one-page-flatbed: -----------------------]

This is fully reproducible when glibc 2.41-6 is built with gcc-14
14.2.0-18 or 14.2.0-19. On the contrary the problem disappears when
rebuilding glibc 2.41-6 with gcc-14 14.2.0-17 currently in testing. In
turn this prevent glibc 2.41-6 to migrate to testing.

Please revert.

Regards
Aurelien

[1] https://ci.debian.net/packages/libi/libinsane/testing/armhf/58878994/#S57

--- End Message ---
--- Begin Message --- 
On 2025-03-19 07:32, Matthias Klose wrote:

Control: clone -1 -2
Control: reassign -2 src:glibc

this is not seen with a glibc-2.41-1 built with gcc-14 14.2.0-18.


As explained in #1100805, this is not a glibc bug. Closing.

--
Aurelien Jarno                          GPG: 4096R/1DDD8C9B
aurelien@aurel32.net                     http://aurel32.net

--- End Message ---
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