Another segfault of the scheduler

[michaelrsweet]

Version: 1.2-current
CUPS.org User: till.kamppeter

CUPS crashed suddenly, without any special reason. Especially I did not try to print when CUPS crashed. I even did not use that machine then.

CUPS version is 1.2 SVN rev 5130

gdb output:

---

[root@majax c]# gdb -c core.15379 /usr/sbin/cupsd
GNU gdb 6.3-6mdk (Mandriva Linux release 2006.1)
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
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Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i586-mandriva-linux-gnu"...Using host libthread_db library "/lib/tls/libthread_db.so.1".

Reading symbols from shared object read from target memory...done.
Loaded system supplied DSO at 0xffffe000
Core was generated by `cupsd -f'.
Program terminated with signal 11, Segmentation fault.

warning: svr4_current_sos: Can't read pathname for load map: Input/output error

Reading symbols from /usr/lib/libz.so.1...done.
Loaded symbols for /usr/lib/libz.so.1
Reading symbols from /usr/lib/libgnutls.so.11...done.
Loaded symbols for /usr/lib/libgnutls.so.11
Reading symbols from /usr/lib/libslp.so.1...done.
Loaded symbols for /usr/lib/libslp.so.1
Reading symbols from /lib/libpam.so.0...done.
Loaded symbols for /lib/libpam.so.0
Reading symbols from /lib/libdl.so.2...done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /usr/lib/libpaper.so.1...done.
Loaded symbols for /usr/lib/libpaper.so.1
Reading symbols from /lib/libdbus-1.so.2...done.
Loaded symbols for /lib/libdbus-1.so.2
Reading symbols from /usr/lib/libcups.so.2...Reading symbols from /usr/lib/debug/usr/lib/libcups.so.2.debug...done.
done.
Loaded symbols for /usr/lib/libcups.so.2
Reading symbols from /lib/tls/libpthread.so.0...done.
Loaded symbols for /lib/tls/libpthread.so.0
Reading symbols from /lib/libacl.so.1...done.
Loaded symbols for /lib/libacl.so.1
Reading symbols from /lib/libcrypt.so.1...done.
Loaded symbols for /lib/libcrypt.so.1
Reading symbols from /lib/tls/libc.so.6...done.
Loaded symbols for /lib/tls/libc.so.6
Reading symbols from /usr/lib/libgcrypt.so.11...done.
Loaded symbols for /usr/lib/libgcrypt.so.11
Reading symbols from /usr/lib/libgpg-error.so.0...done.
Loaded symbols for /usr/lib/libgpg-error.so.0
Reading symbols from /lib/libnsl.so.1...done.
Loaded symbols for /lib/libnsl.so.1
Reading symbols from /lib/libresolv.so.2...done.
Loaded symbols for /lib/libresolv.so.2
Reading symbols from /usr/lib/libcrypto.so.0.9.8...done.
Loaded symbols for /usr/lib/libcrypto.so.0.9.8
Reading symbols from /lib/ld-linux.so.2...done.
Loaded symbols for /lib/ld-linux.so.2
Reading symbols from /lib/libattr.so.1...done.
Loaded symbols for /lib/libattr.so.1
Reading symbols from /lib/libnss_files.so.2...done.
Loaded symbols for /lib/libnss_files.so.2
Reading symbols from /lib/libnss_nisplus.so.2...done.
Loaded symbols for /lib/libnss_nisplus.so.2
Reading symbols from /lib/libnss_nis.so.2...done.
Loaded symbols for /lib/libnss_nis.so.2
Reading symbols from /lib/libnss_dns.so.2...done.
Loaded symbols for /lib/libnss_dns.so.2
#0 delete_rules (rules=0x4) at mime.c:439

439 if (rules->child != NULL)
(gdb) bt
#0 delete_rules (rules=0x4) at mime.c:439
#1 0x08088e2f in delete_rules (rules=0x80e03a0) at mime.c:440
#2 0x08088e8a in mimeDeleteType (mime=0x80a86a0, mt=0x80c16e8) at mime.c:156
#3 0x08083fce in cupsdDeletePrinter (p=0x80f7258, update=1) at printers.c:731
#4 0x0805194e in cupsdDeletePrinterFromClasses (p=0x80e0618) at classes.c:223
#5 0x080840bc in cupsdDeletePrinter (p=0x80e0618, update=134857780)

at printers.c:705

#6 0x080609d0 in cupsdSendBrowseList () at dirsvc.c:754
#7 0x08064c47 in main (argc=2, argv=0xbff10b14) at main.c:876
#8 0xb7c69e40 in __libc_start_main () from /lib/tls/libc.so.6
#9 0x0804e001 in _start () at ../sysdeps/i386/elf/start.S:119

(gdb) quit

[root@majax c]#

error_log attached.

[michaelrsweet]

CUPS.org User: till.kamppeter

I have now also posted

/var/log/cups/access_log
/var/cache/cups/job.cache
/var/cache/cups/remote.cache

[michaelrsweet]

CUPS.org User: mike

Till,

Can you run cupsd from Valgrind, and bump the log level up to "debug2"?

I can't reproduce the problem here...

[michaelrsweet]

CUPS.org User: till.kamppeter

OK, I have switched to "LogLevel debug2" now and started CUPS out of valgrind. I will report the result as soon as there is the next coredump.

[michaelrsweet]

CUPS.org User: mike

Fixed in Subversion repository.