glibc x32 autopkgtest fails in hirsute with binutils and audit in -proposed

[Balint Reczey]

https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-hirsute/hirsute/amd64/g/glibc/20201208_160143_17354@/log.gz

----------
FAIL: math/test-double-libmvec-sincos
original exit status 1
Didn't expect signal from child: got `Illegal instruction'
----------
----------
FAIL: math/test-double-vlen2-sincos
original exit status 132
----------
----------
FAIL: math/test-float-libmvec-sincosf
original exit status 1
Didn't expect signal from child: got `Illegal instruction'
----------
----------
FAIL: math/test-float-vlen4-sincos
original exit status 132
----------

[Balint Reczey (rbalint)]

It did not fail locally for me on an i5 CPU.

CPU in the autopkgtest infra:

https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-hirsute/hirsute/amd64/c/cpuinfo/20201114_005620_e8a1d@/log.gz

autopkgtest [00:55:54]: test command2: /usr/bin/cpu-info
autopkgtest [00:55:54]: test command2: [-----------------------
Packages:
 0: AMD Opteron 62xx class
Microarchitectures:
 1x Bulldozer
Cores:
 0: 1 processor (0), AMD Bulldozer
Logical processors (System ID):
 0 (0): APIC ID 0x00000000

...

Local CPU:
autopkgtest [17:16:25]: test command2: /usr/bin/cpu-info
autopkgtest [17:16:25]: test command2: [-----------------------
Packages:
 0: Intel Core i5-4670
Microarchitectures:
 4x Haswell
Cores:
 0: 1 processor (0), Intel Haswell
 1: 1 processor (1), Intel Haswell
 2: 1 processor (2), Intel Haswell
 3: 1 processor (3), Intel Haswell
Logical processors (System ID):
 0 (0): APIC ID 0x00000000
 1 (1): APIC ID 0x00000002
 2 (2): APIC ID 0x00000004
 3 (3): APIC ID 0x00000006

[Balint Reczey (rbalint)]

$ diff bulldozer-isa-info i5-isa-info
6,7c6,7
< BMI: no
< BMI2: no
---
> BMI: yes
> BMI2: yes
10,12c10,12
< MOVBE: no
< PREFETCH: yes
< PREFETCHW: yes
---
> MOVBE: yes
> PREFETCH: no
> PREFETCHW: no
28,29c28,29
< SSE4a: yes
< Misaligned SSE: yes
---
> SSE4a: no
> Misaligned SSE: no
31,35c31,35
< FMA3: no
< FMA4: yes
< XOP: yes
< F16C: no
< AVX2: no
---
> FMA3: yes
> FMA4: no
> XOP: no
> F16C: yes
> AVX2: yes
54c54
< MONITOR/MWAIT: no
---
> MONITOR/MWAIT: yes
67c67
< RDRAND: no
---
> RDRAND: yes
71c71
< RDTSCP: no
---
> RDTSCP: yes

[Balint Reczey (rbalint)]

I hoped to reproduce the issue with the help of qemu-x86_64 but it does not want to run x32 ELF.

apt build-dep glibc
sed -i 's/backports/proposed/' /etc/apt/sources.list
apt update
apt install libctf-nobfd0 libctf0 binutils-x86-64-linux-gnu libbinutils binutils binutils-common
x86_64-linux-gnu-gcc-10 -mx32 test-double-libmvec-sincos-main.c -std=gnu11 -fgnu89-inline -pipe -O2 -g -Wwrite-strings -Wundef -Werror -fmerge-all-constants -frounding-math -fstack-protector-strong -Wstrict-prototypes -Wold-style-definition -fmath-errno -fpie -fcf-protection -U_FORTIFY_SOURCE -lm
./a.out

 qemu-x86_64-static ./a.out
./a.out: Invalid ELF image for this architecture

Will continue investigation tomorrow.

[Matthias Klose (doko)]

removed the update-excuse tag. that's unrelated to the current 2.33 migration.

[Balint Reczey (rbalint)]

I've observed the failure in the i386 build of glibc_2.33-0ubuntu4:

Linux lcy01-amd64-014 4.15.0-136-generic #140-Ubuntu SMP Thu Jan 28 05:20:47 UTC 2021 i686 athlon i686 GNU/Linux
...
if [ -f /proc/cpuinfo ] ; then cat /proc/cpuinfo ; fi
processor : 0
vendor_id : AuthenticAMD
cpu family : 16
model : 2
model name : AMD Opteron 23xx (Gen 3 Class Opteron)
stepping : 3
microcode : 0x1000065
cpu MHz : 2500.048
cache size : 512 KB
physical id : 0
siblings : 1
core id : 0
cpu cores : 1
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt pdpe1gb lm 3dnowext 3dnow rep_good nopl cpuid extd_apicid tsc_known_freq pni cx16 x2apic popcnt hypervisor lahf_lm cmp_legacy svm cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw vmmcall
bugs : tlb_mmatch fxsave_leak sysret_ss_attrs null_seg spectre_v1 spectre_v2
bogomips : 5000.09
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:
...

+---------------------------------------------------------------------+
| Encountered regressions that don't match expected failures. |
+---------------------------------------------------------------------+
FAIL: math/test-double-libmvec-sincos
FAIL: math/test-double-vlen2-sincos
FAIL: math/test-float-libmvec-sincosf
FAIL: math/test-float-vlen4-sincos
touch /<<PKGBUILDDIR>>/stamp-dir/check_x32
CHECK SUMMARY
check for check_libc passed
check for check_amd64 passed
check for check_x32 failed