Bug#1005001: kernel: traps: boinccmd/boincmgr trap invalid opcode […] error:0 in libboinc.so.7.18.1/boincmgr

Mon Mar 7 16:40:49 GMT 2022

Dear Maintainer,
I could reproduce this issue inside a minimal QEMU VM
with a CPU lacking the AVX instructions.

It looks like the patch new-autoconf-build-fix.patch introduced
adding of "-mavx" to CXXFLAGS flags.

Salsa already contains a patch [1] to remove that "-mavx":
   "Reversing -mavx for compatibility with older servers"

A package version containing this patch is not yet released.

Kind regards,
Bernhard

[1] https://salsa.debian.org/pkg-boinc-team/boinc/-/commit/a0611c2bc86864428337b07b382e4d5cf823b95d

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# Bookworm/testing amd64 qemu VM 2022-03-07, -cpu core2duo-v1

apt update
apt dist-upgrade

apt install systemd-coredump gdb boinc-client boinc-client-dbgsym libboinc7-dbgsym
apt build-dep boinc

mkdir /home/benutzer/source/boinc/orig -p
cd    /home/benutzer/source/boinc/orig
apt source boinc
cd

benutzer at debian:~$ boinccmd
Ungültiger Maschinenbefehl (Speicherabzug geschrieben)

root at debian:~# dmesg -T
[Mo Mär  7 17:06:43 2022] traps: boinccmd[1136] trap invalid opcode ip:7f451608d53c sp:7ffed98c6ce0 error:0 in libboinc.so.7.18.1[7f4516071000+52000]

root at debian:~# coredumpctl list
TIME                         PID  UID  GID SIG    COREFILE EXE                SIZE
Mon 2022-03-07 17:06:43 CET 1136 1000 1000 SIGILL present  /usr/bin/boinccmd 43.7K

root at debian:~# coredumpctl gdb 1136
           PID: 1136 (boinccmd)
           UID: 1000 (benutzer)
           GID: 1000 (benutzer)
        Signal: 4 (ILL)
     Timestamp: Mon 2022-03-07 17:06:43 CET (1min 17s ago)
  Command Line: boinccmd
    Executable: /usr/bin/boinccmd
 Control Group: /user.slice/user-1000.slice/session-3.scope
          Unit: session-3.scope
         Slice: user-1000.slice
       Session: 3
     Owner UID: 1000 (benutzer)
       Boot ID: c80c81ec229143bba5e4d7081233fff0
    Machine ID: 55a5ad9df1d547f38d7696343d9fde7d
      Hostname: debian
       Storage: /var/lib/systemd/coredump/core.boinccmd.1000.c80c81ec229143bba5e4d7081233fff0.1136.1646669203000000.zst (present)
     Disk Size: 43.7K
       Message: Process 1136 (boinccmd) of user 1000 dumped core.

                Module linux-vdso.so.1 with build-id f1e6ebc29324e66aa6f1c7b729b6fcf419dabec0
                Module ld-linux-x86-64.so.2 with build-id e3c16ace3f263f16279effd958654ea9acc2efa7
                Module libm.so.6 with build-id 50fff5dfc200460da3b14f4738ec96edc71771af
                Module libc.so.6 with build-id b3ebbc2ec3f16faee002f4ff774427236d2adc3d
                Module libgcc_s.so.1 with build-id f3ab8f56acb81f58d7dea93ec395f17d39385742
                Module libstdc++.so.6 with build-id f23294dc02e6fcab5938f30fcc014cc5f0879ca3
                Module libpthread.so.0 with build-id 18adf73bf752fe671bdf5c046f15dda9c293834d
                Module libboinc.so.7 with build-id f04dec977f6d9d838ab81d941653810f4b0fd1d2
                Module boinccmd with build-id ed823df07fcfae86423eba320e3a7d254d77bb97
                Stack trace of thread 1136:
                #0  0x00007f451608d53c _ZN10RPC_CLIENTC1Ev (libboinc.so.7 + 0x6253c)
                #1  0x0000558a99b67761 main (boinccmd + 0x3761)
                #2  0x00007f4515c2f7fd __libc_start_main (libc.so.6 + 0x237fd)
                #3  0x0000558a99b69cda _start (boinccmd + 0x5cda)
                ELF object binary architecture: AMD x86-64

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Reading symbols from /usr/bin/boinccmd...
Download failed: Die angeforderte Funktion ist nicht implementiert.  Continuing without debug info for /usr/bin/boinccmd.
(No debugging symbols found in /usr/bin/boinccmd)
[New LWP 1136]
Download failed: Die angeforderte Funktion ist nicht implementiert.  Continuing without debug info for /lib/x86_64-linux-gnu/libboinc.so.7.
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Download failed: Die angeforderte Funktion ist nicht implementiert.  Continuing without debug info for /lib/x86_64-linux-gnu/libstdc++.so.6.
Download failed: Die angeforderte Funktion ist nicht implementiert.  Continuing without debug info for /lib/x86_64-linux-gnu/libgcc_s.so.1.
Download failed: Die angeforderte Funktion ist nicht implementiert.  Continuing without debug info for /root/system-supplied DSO at 0x7ffed98e8000.
Core was generated by `boinccmd'.
Program terminated with signal SIGILL, Illegal instruction.
#0  0x00007f451608d53c in RPC_CLIENT::RPC_CLIENT() () from /lib/x86_64-linux-gnu/libboinc.so.7
(gdb) bt
#0  0x00007f451608d53c in RPC_CLIENT::RPC_CLIENT() () from /lib/x86_64-linux-gnu/libboinc.so.7
#1  0x0000558a99b67761 in ?? ()
#2  0x00007f4515c2f7fd in __libc_start_main (main=0x558a99b67710, argc=1, argv=0x7ffed98dd3f8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffed98dd3e8) at ../csu/libc-start.c:332
#3  0x0000558a99b69cda in ?? ()
(gdb)

Program terminated with signal SIGILL, Illegal instruction.
#0  0x00007f451608d53c in RPC_CLIENT::RPC_CLIENT (this=0x7ffed98c6eb0) at gui_rpc_client.cpp:56
Download failed: Die angeforderte Funktion ist nicht implementiert.  Continuing without source file /build/boinc-ncxTl4/boinc-7.18.1+dfsg/lib/gui_rpc_client.cpp.
56      gui_rpc_client.cpp: Datei oder Verzeichnis nicht gefunden.
(gdb) bt
#0  0x00007f451608d53c in RPC_CLIENT::RPC_CLIENT (this=0x7ffed98c6eb0) at gui_rpc_client.cpp:56
#1  0x0000558a99b67761 in main (argc=1, argv=0x7ffed98dd3f8) at ./client/boinc_cmd.cpp:192
(gdb) disassemble /r $pc-30,$pc+20
Dump of assembler code from 0x7f451608d51e to 0x7f451608d550:
   0x00007f451608d51e <_Z16is_path_absoluteNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+64>:    00 c9   add    %cl,%cl
   0x00007f451608d520 <_Z16is_path_absoluteNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+66>:    c3      ret    
   0x00007f451608d521:  90      nop
   0x00007f451608d522 <_ZN10RPC_CLIENTC2Ev+0>:  55      push   %rbp
   0x00007f451608d523 <_ZN10RPC_CLIENTC2Ev+1>:  48 89 e5        mov    %rsp,%rbp
   0x00007f451608d526 <_ZN10RPC_CLIENTC2Ev+4>:  48 83 ec 10     sub    $0x10,%rsp
   0x00007f451608d52a <_ZN10RPC_CLIENTC2Ev+8>:  48 89 7d f8     mov    %rdi,-0x8(%rbp)
   0x00007f451608d52e <_ZN10RPC_CLIENTC2Ev+12>: 48 8b 45 f8     mov    -0x8(%rbp),%rax
   0x00007f451608d532 <_ZN10RPC_CLIENTC2Ev+16>: c7 00 ff ff ff ff       movl   $0xffffffff,(%rax)
   0x00007f451608d538 <_ZN10RPC_CLIENTC2Ev+22>: 48 8b 45 f8     mov    -0x8(%rbp),%rax
=> 0x00007f451608d53c <_ZN10RPC_CLIENTC2Ev+26>: c5 f9 57 c0     vxorpd %xmm0,%xmm0,%xmm0
   0x00007f451608d540 <_ZN10RPC_CLIENTC2Ev+30>: c5 fb 11 40 08  vmovsd %xmm0,0x8(%rax)
   0x00007f451608d545 <_ZN10RPC_CLIENTC2Ev+35>: 48 8b 45 f8     mov    -0x8(%rbp),%rax
   0x00007f451608d549 <_ZN10RPC_CLIENTC2Ev+39>: c5 f9 57 c0     vxorpd %xmm0,%xmm0,%xmm0
   0x00007f451608d54d <_ZN10RPC_CLIENTC2Ev+43>: c5 fb 11 40 10  vmovsd %xmm0,0x10(%rax)
End of assembler dump.

root at debian:~# dpkg -l | grep boinc
ii  boinc-client               7.18.1+dfsg-4                     amd64        core client for the BOINC distributed computing infrastructure
ii  boinc-client-dbgsym        7.18.1+dfsg-4                     amd64        debug symbols for boinc-client
ii  libboinc7:amd64            7.18.1+dfsg-4                     amd64        libraries of BOINC the client depends on
ii  libboinc7-dbgsym:amd64     7.18.1+dfsg-4                     amd64        debug symbols for libboinc7

https://www.felixcloutier.com/x86/xorpd
-> AVX ?

https://buildd.debian.org/status/logs.php?pkg=boinc&arch=amd64

https://buildd.debian.org/status/fetch.php?pkg=boinc&arch=amd64&ver=7.16.17%2Bdfsg-2&stamp=1623320892&raw=0
...
**** Making     *****
****            *****
**** CC=cc -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -Wall -O3 -funroll-loops -fforce-addr -ffast-math -flto
**** CXX=g++ -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -Wall -O3 -funroll-loops -fforce-addr -ffast-math -flto
...

https://buildd.debian.org/status/fetch.php?pkg=boinc&arch=amd64&ver=7.18.1%2Bdfsg-3&stamp=1643405002&raw=0
...
**** Making     *****
****            *****
**** CC=cc -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -Wall -O3 -funroll-loops -fforce-addr -ffast-math -flto
**** CXX=g++ -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -mavx -Wall -O3 -funroll-loops -fforce-addr -ffast-math -flto
...

https://buildd.debian.org/status/fetch.php?pkg=boinc&arch=amd64&ver=7.18.1%2Bdfsg-4&stamp=1643533344&raw=0

https://salsa.debian.org/pkg-boinc-team/boinc/-/commit/a0611c2bc86864428337b07b382e4d5cf823b95d