[maverick] hang in stat->__xstat->send_get_stat->send_get_fakem->semaphore_up->semop

[Dave Gilbert]

Binary package hint: fakeroot

I'm running Maverick (currently standard 2.6.35-10-generic #15-Ubuntu SMP)
and am just building a new kernel package (with DEB_BUILDOPTIONS=parallel=10)
and it's hung quite a long way in during an ld instance, attaching to ld and getting a backtrace I see:

#0 0x00002b5b2c3043d7 in semop () at ../sysdeps/unix/syscall-template.S:82
#1 0x00002b5b2b8e3049 in semaphore_up () from /usr/lib/libfakeroot/libfakeroot-sysv.so
#2 0x00002b5b2b8e30b2 in send_get_fakem () from /usr/lib/libfakeroot/libfakeroot-sysv.so
#3 0x00002b5b2b8e31b8 in send_get_stat () from /usr/lib/libfakeroot/libfakeroot-sysv.so
#4 0x00002b5b2b8e1e58 in __xstat () from /usr/lib/libfakeroot/libfakeroot-sysv.so
#5 0x00002b5b2bb4990c in stat (filename=0x7fff3683b3e3 "drivers/md/dm-queue-length.o", target=0x456b6c "elf64-x86-64", mode=0x2b5b2bbd3697 "r", fd=-1) at //usr/include/sys/stat.h:457
#6 bfd_fopen (filename=0x7fff3683b3e3 "drivers/md/dm-queue-length.o", target=0x456b6c "elf64-x86-64", mode=0x2b5b2bbd3697 "r", fd=-1) at ../../bfd/opncls.c:188
#7 0x000000000041d161 in ?? ()
#8 0x000000000041d81c in ?? ()
#9 0x00000000004118a5 in ?? ()
#10 0x0000000000412187 in ?? ()
#11 0x000000000041317a in ?? ()
#12 0x0000000000418346 in ?? ()
#13 0x00002b5b2c239d8d in __libc_start_main (main=<value optimised out>, argc=<value optimised out>, ubp_av=<value optimised out>, init=<value optimised out>, fini=<value optimised out>, rtld_fini=<value optimised out>,
    stack_end=0x7fff3683a768) at libc-start.c:226
#14 0x0000000000404269 in ?? ()
#15 0x00007fff3683a768 in ?? ()
#16 0x000000000000001c in ?? ()
#17 0x000000000000000b in ?? ()
#18 0x00007fff3683b35b in ?? ()
#19 0x00007fff3683b35e in ?? ()
#20 0x00007fff3683b361 in ?? ()
#21 0x00007fff3683b364 in ?? ()
#22 0x00007fff3683b36f in ?? ()
#23 0x00007fff3683b372 in ?? ()
#24 0x00007fff3683b3b7 in ?? ()
#25 0x00007fff3683b3c2 in ?? ()
#26 0x00007fff3683b3c5 in ?? ()
#27 0x00007fff3683b3e3 in ?? ()
#28 0x00007fff3683b400 in ?? ()
#29 0x0000000000000000 in ?? ()
(gdb) quit

so best guess is that this is a fakeroot issue.

Dave

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: fakeroot 1.14.4-1ubuntu1
ProcVersionSignature: Ubuntu 2.6.35-10.15-generic 2.6.35-rc5
Uname: Linux 2.6.35-10-generic x86_64
Architecture: amd64
CheckboxSubmission: f2d10bd9f943a85b486a282e7840a570
CheckboxSystem: 0531969bcfd4f03af7405c98dc94a948
Date: Sat Jul 24 16:52:34 2010
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
ProcEnviron:
 PATH=(custom, user)
 LANG=en_GB.utf8
 SHELL=/bin/bash
SourcePackage: fakeroot

[Dave Gilbert (ubuntu-treblig)]

Oops, forgot to add the comment that the command being run to do the build is:

AUTOBUILD=1 NOEXTRAS=1 fakeroot debian/rules binary-generic

[Luís Infante da Câmara (luis220413)]

This is most likely data corruption caused by a hardware issue or a data race.

Ubuntu 10.10 is end-of-life since April 10, 2012. Please try to reproduce this bug in a current Ubuntu release.

[Launchpad Janitor (janitor)]

[Expired for fakeroot (Ubuntu) because there has been no activity for 60 days.]