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SubjectRe: 2.6.35-rc3 deadlocks on semaphore operations
Some more information that may be helpful:

proc/27878$ strace -p 27878
Process 27878 attached - interrupt to quit
semop(65536, {{0, -1, SEM_UNDO}}, 1

proc/27878$ ps xawwwww_
ERROR: Unsupported option (BSD syntax)

ps alx shows a number of stuck processes:

0 1000 20121 17784 20 0 367040 14416 poll_s Sl ? 0:07 /usr/lib/chromium-browser/chromium-browser --type=plugin --plugin-path=/var/lib/flashplugin-installer/npwr
0 1000 23477 20121 20 0 120864 19940 poll_s Sl ? 0:07 /usr/lib/nspluginwrapper/i386/linux/npviewer.bin --plugin /usr/lib/flashplugin-installer/libflashplayer.so
0 1000 23531 16635 20 0 13928 2292 wait S+ pts/0 0:00 /usr/bin/make -j9 EXTRAVERSION=-rc3-broke ARCH=x86_64 modules
0 1000 24724 23531 20 0 17220 5444 wait S+ pts/0 0:00 /usr/bin/make -f scripts/Makefile.build obj=fs
0 1000 24817 23531 20 0 13512 1928 pipe_w S+ pts/0 0:00 /usr/bin/make -f scripts/Makefile.build obj=drivers
0 1000 25374 23531 20 0 14256 2384 pipe_w S+ pts/0 0:00 /usr/bin/make -f scripts/Makefile.build obj=net
0 1000 27275 24817 20 0 13252 1560 wait S+ pts/0 0:00 /usr/bin/make -f scripts/Makefile.build obj=drivers/media
0 1000 27294 27275 20 0 13272 1576 pipe_w S+ pts/0 0:00 /usr/bin/make -f scripts/Makefile.build obj=drivers/media/dvb
0 1000 27623 27275 20 0 20720 8980 semtim S+ pts/0 0:00 /usr/bin/make -f scripts/Makefile.build obj=drivers/media/video
0 1000 27633 25374 20 0 16696 4984 pipe_w S+ pts/0 0:00 /usr/bin/make -f scripts/Makefile.build obj=net/sunrpc
0 1000 27691 24724 20 0 18400 6700 semtim S+ pts/0 0:00 /usr/bin/make -f scripts/Makefile.build obj=fs/xfs
0 1000 27693 27294 20 0 18252 6504 semtim S+ pts/0 0:00 /usr/bin/make -f scripts/Makefile.build obj=drivers/media/dvb/frontends
0 1000 27743 25374 20 0 15988 4244 semtim S+ pts/0 0:00 /usr/bin/make -f scripts/Makefile.build obj=net/tipc
0 1000 27744 24817 20 0 15016 3268 pipe_w S+ pts/0 0:00 /usr/bin/make -f scripts/Makefile.build obj=drivers/misc
0 1000 27754 25374 20 0 14832 3008 semtim S+ pts/0 0:00 /usr/bin/make -f scripts/Makefile.build obj=net/wimax
0 1000 27769 27633 20 0 14816 2836 semtim S+ pts/0 0:00 /usr/bin/make -f scripts/Makefile.build obj=net/sunrpc/auth_gss
0 1000 27839 27744 20 0 13932 2100 semtim S+ pts/0 0:00 /usr/bin/make -f scripts/Makefile.build obj=drivers/misc/c2port
0 1000 27847 27744 20 0 13996 2224 semtim S+ pts/0 0:00 /usr/bin/make -f scripts/Makefile.build obj=drivers/misc/cb710
0 1000 27866 27744 20 0 13772 1844 semtim S+ pts/0 0:00 /usr/bin/make -f scripts/Makefile.build obj=drivers/misc/eeprom
0 1000 27877 27693 20 0 0 0 exit Z+ pts/0 0:00 [sh] <defunct>
0 1000 27878 27623 20 0 8292 352 semtim S+ pts/0 0:00 /bin/sh -c { echo drivers/media/video/zr364xx.ko; echo drivers/media/video/zr364xx.o; } > .tmp_versions/zr1 1000 27879 2140 20 0 20900 4000 wait S+ pts/1 0:00 bash
0 1000 27905 2097 20 0 20900 4972 wait Ss pts/3 0:00 bash
0 1000 27997 27905 20 0 6588 756 - R+ pts/3 0:00 ps alx




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