Bernhard Übelacker wrote on 25/08/2020 09:34: > > Adding the line above would just appear in 'journalctl -e -u cups.service'. > Otherwise one could add the option '--log-file=/tmp/valgrind' to redirect > and separate the additional output of valgrind. > > I have also not yet run valgrind that way, but I would expect either the crash > happen the same way, therefore process would end and maybe automatically > restarted. > > It might also just print something and continue or the issue does not happen > at all when running under valgrind, I cannot be sure.
OK, thanks. I have cups running under valgrind. Running a test print from a Windows 10 box triggers the error and Valgrind gives this output: Aug 25 09:49:17 samba-prn-01 systemd[1]: Started CUPS Scheduler. Aug 25 09:49:17 samba-prn-01 valgrind[28088]: ==28088== Memcheck, a memory error detector Aug 25 09:49:17 samba-prn-01 valgrind[28088]: ==28088== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al. Aug 25 09:49:17 samba-prn-01 valgrind[28088]: ==28088== Using Valgrind-3.14.0 and LibVEX; rerun with -h for copyright info Aug 25 09:49:17 samba-prn-01 valgrind[28088]: ==28088== Command: /usr/sbin/cupsd -l Aug 25 09:49:17 samba-prn-01 valgrind[28088]: ==28088== Aug 25 09:49:17 samba-prn-01 valgrind[28088]: --28088-- WARNING: Serious error when reading debug info Aug 25 09:49:17 samba-prn-01 valgrind[28088]: --28088-- When reading debug info from /usr/sbin/cupsd: Aug 25 09:49:17 samba-prn-01 valgrind[28088]: --28088-- debuginfo section duplicates a section in the main ELF file Aug 25 09:56:32 samba-prn-01 valgrind[28088]: ==28088== Invalid free() / delete / delete[] / realloc() Aug 25 09:56:32 samba-prn-01 valgrind[28088]: ==28088== at 0x48369AB: free (vg_replace_malloc.c:530) Aug 25 09:56:32 samba-prn-01 valgrind[28088]: ==28088== by 0x4A2443D: ipp_free_values (ipp.c:6324) Aug 25 09:56:32 samba-prn-01 valgrind[28088]: ==28088== by 0x4A243A7: ippDelete (ipp.c:1755) Aug 25 09:56:32 samba-prn-01 valgrind[28088]: ==28088== by 0x4A243A7: ippDelete (ipp.c:1729) Aug 25 09:56:32 samba-prn-01 valgrind[28088]: ==28088== by 0x11CCE3: ??? (in /usr/sbin/cupsd) Aug 25 09:56:32 samba-prn-01 valgrind[28088]: ==28088== Address 0x65f1e94 is 4 bytes inside a block of size 23 alloc'd Aug 25 09:56:32 samba-prn-01 valgrind[28088]: ==28088== at 0x4837B65: calloc (vg_replace_malloc.c:752) Aug 25 09:56:32 samba-prn-01 valgrind[28088]: ==28088== by 0x4A34DD0: _cupsStrAlloc (string.c:107) Aug 25 09:56:32 samba-prn-01 valgrind[28088]: ==28088== by 0x4A234F5: ippAddString (ipp.c:957) Aug 25 09:56:32 samba-prn-01 valgrind[28088]: ==28088== by 0x13076D: ??? (in /usr/sbin/cupsd) Aug 25 09:56:32 samba-prn-01 valgrind[28088]: ==28088== by 0x5AC5261: ??? Aug 25 09:56:32 samba-prn-01 valgrind[28088]: ==28088== by 0x5F44D23F: ??? Aug 25 09:56:32 samba-prn-01 valgrind[28088]: ==28088== Does that give any further insight? Ronny -- Ronny Adsetts Technical Director Amazing Internet Ltd, London t: +44 20 8977 8943 w: www.amazinginternet.com Registered office: 85 Waldegrave Park, Twickenham, TW1 4TJ Registered in England. Company No. 4042957
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