Bug#993162: libc6: i386 (Geode LX): latest push to Bookwork produces multiple sig ILL
la 28. elok. 2021 klo 13.40 Aurelien Jarno (aurelien@aurel32.net) kirjoitti:
>
> On 2021-08-28 13:36, Martin-Éric Racine wrote:
> > la 28. elok. 2021 klo 12.58 Aurelien Jarno (aurelien@aurel32.net) kirjoitti:
> > > > $ sudo coredumpctl debug 1011
> > > > PID: 1011 (apt-get)
> > > > UID: 0 (root)
> > > > GID: 0 (root)
> > > > Signal: 4 (ILL)
> > > > Timestamp: Sat 2021-08-28 11:00:34 EEST (3min 22s ago)
> > > > Command Line: apt-get --quiet --quiet update
> > > > Executable: /usr/bin/apt-get
> > > > Control Group: /user.slice/user-1000.slice/session-4.scope
> > > > Unit: session-4.scope
> > > > Slice: user-1000.slice
> > > > Session: 4
> > > > Owner UID: 1000 (perkelix)
> > > > Boot ID: 77dfa6eb16584c02b84de4e2b8feb781
> > > > Machine ID: 1063a9d1fb9df6e371ea9f94491345ed
> > > > Hostname: geode
> > > > Storage: /var/lib/systemd/coredump/core.apt-get.0.77dfa6eb16584c02b84de4e2b8feb781.1011.1630137634000000.zst
> > > > Message: Process 1011 (apt-get) of user 0 dumped core.
> > > >
> > > > Stack trace of thread 1011:
> > > > #0 0x00000000b7ad2ed0 __cpu_indicator_init (libgcc_s.so.1 + 0x2ed0)
> > > > #1 0x00000000b7faf02c call_init (ld-linux.so.2 + 0x1102c)
> > > > #2 0x00000000b7faf132 call_init (ld-linux.so.2 + 0x11132)
> > > > #3 0x00000000b7f9f0fa _dl_start_user (ld-linux.so.2 + 0x10fa)
> > >
> > > The SIGILL happens in __cpu_indicator_init which is provided by
> > > libgcc-s1. Bookworm got a new upstream version of this package compared
> > > to bullseye, so if you also upgraded it, it's more likely to be the
> > > issue. In that case, have you tried to downgrade it?
> >
> > Just did. Here's the result:
> >
> > $ sudo coredumpctl debug 2083
> > PID: 2083 (apt-get)
> > UID: 0 (root)
> > GID: 0 (root)
> > Signal: 4 (ILL)
> > Timestamp: Sat 2021-08-28 13:33:05 EEST (1min 36s ago)
> > Command Line: apt-get update
> > Executable: /usr/bin/apt-get
> > Control Group: /user.slice/user-1000.slice/session-2.scope
> > Unit: session-2.scope
> > Slice: user-1000.slice
> > Session: 2
> > Owner UID: 1000 (perkelix)
> > Boot ID: a200afe0e5134b8a812b05c898c8b859
> > Machine ID: 1063a9d1fb9df6e371ea9f94491345ed
> > Hostname: geode
> > Storage:
> > /var/lib/systemd/coredump/core.apt-get.0.a200afe0e5134b8a812b05c898c8b859.2083.1630146785000000.zst
> > Message: Process 2083 (apt-get) of user 0 dumped core.
> >
> > Stack trace of thread 2083:
> > #0 0x00000000b7ae9170 frame_dummy (libstdc++.so.6 + 0x87170)
>
> It seems that all libraries from gcc-11 are now compiled with Intel CET
> enabled, following an upstream commit [1]. I guess you will also have to
> downgrade libstdc++6.
>
> [1] https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=8d286dd118a5bd16f7ae0fb9dfcdcfd020bea803
Sure enough, downgrading libstdc++6 too fixed it.
Martin-Éric
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