* Rob Leslie [Sun Jun 01, 2025 at 01:07:10PM -0400]: > > On May 18, 2025, at 2:09 PM, Michael Prokop <[email protected]> wrote: > > > > * Rob Leslie [Thu May 15, 2025 at 12:18:22PM -0700]:
> >> A zsh process dumped core when the login session was ended (likely due > >> to a failed network connection). Here are the relevant logs: > >> > >> ----- > >> May 14 17:56:27 host sshd[1733250]: pam_unix(sshd:session): session closed > >> for user > >> May 14 17:56:27 host systemd-logind[566]: Session 18 logged out. Waiting > >> for processes to exit. > >> May 14 17:56:27 host kernel: show_signal_msg: 1 callbacks suppressed > >> May 14 17:56:27 host kernel: zsh[1733257]: segfault at 0 ip > >> 0000558b81d54b3e sp 00007ffc254531f0 error 6 in zsh[558b81cc8000+9a000] > >> likely on CPU 1 (core 0, socket 1) > >> May 14 17:56:27 host kernel: Code: b6 13 48 8d 41 01 48 83 c3 01 83 f2 20 > >> 88 51 01 48 8d 48 01 48 39 de 74 1c 0f b6 13 f6 44 57 01 10 75 d9 48 89 c8 > >> 48 83 c3 01 <88> 11 48 8d 48 01 48 39 de 75 e4 c6 01 00 48 83 c4 18 4c 89 > >> e0 5b > >> May 14 17:56:27 host systemd-coredump[3885063]: Process 1733257 (zsh) of > >> user 1000 dumped core. > >> May 14 17:56:27 host systemd-logind[566]: Removed session 18. > >> ----- > >> > >> Here is the relevant coredump info: > > [...] > > > > Is that reproducible for you somehow? > > I can’t say it’s reliably reproducible, however I do have a record of 12 > other coredumps across several machines, including one from Debian 11. All > have similar stack traces. Hm, would be interesting to have steps to reproduce this, I never observed such a behavior on my own. > > FTR, there's zsh 5.9-4+b6 with: > > > > | * Binary-only non-maintainer upload for amd64; no source changes. > > | * Rebuild for outdated Built-Using (glibc/2.36-9+deb12u5) > > > > And latest Debian point-release 12.11 provides libc6 > > v2.36-9+deb12u10, wondering whether this would change anything, > > assuming that it's even reproducible in some way at all. > > It looks like libc6 2.36-9+deb12u10 was installed on one machine on > 2025-03-15 and a coredump followed on 2025-05-17, so that didn’t seem to > change anything. Was the system rebooted in between? Was the system fully upgraded to what Debian v12 provides? Do the ~13 occurences you observed so far have anything in common? regards -mika-
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