Re: Crash problem
Laura Williamson via Exim-users <[email protected]> Tue, 4 Nov 2025 12:22:50 +0000
| Newsgroups | gmane.mail.exim.user |
|---|---|
| Message-ID | <[email protected]> |
managed to produce a SIGSEGV so i now have a core file, this is what i get ore was generated by `/usr/exim/bin/exim-4.99-2 -qq'. Program terminated with signal 11, Segmentation fault. #0 0x00007f7b17bdf622 in strlen () from /lib64/libc.so.6 (gdb) bt #0 0x00007f7b17bdf622 in strlen () from /lib64/libc.so.6 #1 0x00000000004558d6 in ?? () #2 0x00000c5c009109e0 in ?? () #3 0x0000000000651860 in ?? () #4 0x0000000000000000 in ?? () On 2025-11-04 11:00, Jeremy Harris via Exim-users wrote: > OK, that didn't detect anything. We need to investigate a core. > > Do a build with "CFLAGS += -O0 -ggdb". > > Does Slackware have the systemd-ish coredumpctl stuff? > I suspect not; so we need to enable suid-coredumps. > (Over here, Fedora, the hints are in "man core" which mentions > /proc/sys/fs/suid_dumpable) > and check that "ulimit" does not restrict the size of corefile. > > Run a test to get a crash, and locate the core file. > > Run up gdb - "sudo gdb <exim-binary-location> <corefile-location>". > Ignore all the offers to load debuginfo file for libraries. > At the prompt: "bt" > You should get a more comprehensive stacktrace, with file and line > number info. > > > Copy that here. Keep the corefile; we may want to pull some > variable values out of it. > > (If you can do IRC, I'm in #exim on irc.libera.chat) -- ## subscription configuration (requires account): ## https://lists.exim.org/mailman3/postorius/lists/exim-users.lists.exim.org/ ## unsubscribe (doesn't require an account): ## [email protected] ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/