https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87071
Bug ID: 87071
Summary: libstdc++ crashes during GPU driver initialization
with suspected attempt to execute unsupported
instruction by Athlon64 X2 TK-57
Product: gcc
Version: 8.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: virtuousfox at gmail dot com
Target Milestone: ---
Created attachment 44576
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44576&action=edit
Xorg.pid-1158.gdb.log
So I've updated the system on an old laptop after neglecting to do so for a
long time and was met with inoperable X server. After sending a report to Mesa
developers they insisted on that being an issue in libstdc++. Attached file
contains full gdb dump made by automated script and filled with relevant
debuginfo.
Affected libstdc++ version are 8.1.1 from
https://build.opensuse.org/package/show/openSUSE:Factory/gcc8 and 8.2.1 from
https://build.opensuse.org/package/show/devel:gcc/gcc8
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib64/gcc/x86_64-suse-linux/8/lto-wrapper
OFFLOAD_TARGET_NAMES=hsa:nvptx-none
Target: x86_64-suse-linux
Configured with: ../configure --prefix=/usr --infodir=/usr/share/info
--mandir=/usr/share/man --libdir=/usr/lib64 --libexecdir=/usr/lib64
--enable-languages=c,c++,objc,fortran,obj-c++,ada,go
--enable-offload-targets=hsa,nvptx-none=/usr/nvptx-none, --without-cuda-driver
--enable-checking=release --disable-werror
--with-gxx-include-dir=/usr/include/c++/8 --enable-ssp --disable-libssp
--disable-libvtv --disable-cet --disable-libcc1 --enable-plugin
--with-bugurl=http://bugs.opensuse.org/ --with-pkgversion='SUSE Linux'
--with-slibdir=/lib64 --with-system-zlib --enable-__cxa_atexit
--enable-libstdcxx-allocator=new --disable-libstdcxx-pch
--enable-version-specific-runtime-libs --with-gcc-major-version-only
--enable-linker-build-id --enable-linux-futex --enable-gnu-indirect-function
--program-suffix=-8 --without-system-libunwind --enable-multilib
--with-arch-32=x86-64 --with-tune=generic --build=x86_64-suse-linux
--host=x86_64-suse-linux
Thread model: posix
gcc version 8.2.1 20180817 [gcc-8-branch revision 263612] (SUSE Linux)
cpuinfo from affected machine:
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 104
model name : AMD Athlon(tm) 64 X2 Dual-Core Processor TK-57
stepping : 2
cpu MHz : 800.000
cache size : 256 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 1
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 ht syscall nx mmxext fxsr_opt rdtscp lm
3dnowext 3dnow rep_good nopl cpuid extd_apicid pni cx16 lahf_lm cmp_legacy svm
extapic cr8_legacy 3dnowprefetch vmmcall lbrv
bugs : apic_c1e fxsave_leak sysret_ss_attrs null_seg swapgs_fence
amd_e400 spectre_v1 spectre_v2
bogomips : 1596.01
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp tm stc 100mhzsteps
processor : 1
…
core id : 1
cpu cores : 2
apicid : 1
initial apicid : 1
…
However, same versions run fine on machine with Radeon RX580 (radeonsi_dri) and
processor : 0
vendor_id : AuthenticAMD
cpu family : 21
model : 1
model name : AMD FX(tm)-6100 Six-Core Processor
stepping : 2
microcode : 0x600063e
cpu MHz : 3780.977
cache size : 2048 KB
physical id : 0
siblings : 6
core id : 0
cpu cores : 3
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
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 ht syscall nx mmxext fxsr_opt pdpe1gb
rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf
pni pclmulqdq monitor ssse3 cx16 sse4_1 sse4_2 popcnt aes xsave avx lahf_lm
cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs
xop skinit wdt fma4 nodeid_msr topoext perfctr_core perfctr_nb cpb hw_pstate
ssbd ibpb vmmcall arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean
flushbyasid decodeassists pausefilter pfthreshold
bugs : fxsave_leak sysret_ss_attrs null_seg spectre_v1 spectre_v2
spec_store_bypass
bogomips : 7919.04
TLB size : 1536 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb
