Hello, with LTP 20080229 released, I ran it against my target MPC8313E-RDB (powerpc) board, running a 2.6.24.3-rt3 kernel with nohz, preempt rt, hrtimers enabled. (http://ltp.sourceforge.net/) It reliably crashes during the "shmctl04" test, see the oops with a manual function backtrace here: $/usr/libexec/ltp/runltp ... <<<test_start>>> tag=shmctl02 stime=8030 cmdline="shmctl02" contacts="" analysis=exit initiation_status="ok" <<<test_output>>> shmctl02 1 PASS : expected failure - errno = 13 : Permission denied shmctl02 2 PASS : expected failure - errno = 14 : Bad address shmctl02 3 PASS : expected failure - errno = 14 : Bad address shmctl02 4 PASS : expected failure - errno = 22 : Invalid argument shmctl02 5 PASS : expected failure - errno = 22 : Invalid argument shmctl02 6 CONF : shmctl() did not fail for non-root user.This may be okay for your distribution. shmctl02 7 CONF : shmctl() did not fail for non-root user.This may be okay for your distribution. <<<execution_status>>> duration=0 termination_type=exited termination_id=0 corefile=no cutime=0 cstime=2 <<<test_end>>> <<<test_start>>> tag=shmctl03 stime=8030 cmdline="shmct[ 8030.335495] Oops: Exception in kernel mode, sig: 5 [#1] [ 8030.340842] PREEMPT MPC8313 RDB [ 8030.343977] Modules linked in: ledtrig_heartbeat ledtrig_timer ledtrig_cpu leds_mpc8313e_rdb led_class [ 8030.353299] NIP: c00461f0 LR: c0046184 CTR: 00000000 [ 8030.358248] REGS: c5a31cf0 TRAP: 0700 Not tainted (2.6.24.3-rt3) [ 8030.364491] MSR: 00021032 <ME,IR,DR> CR: 22000464 XER: 20000000 [ 8030.370607] TASK = c7012ab0[7657] 'shmctl04' THREAD: c5a30000 [ 8030.376157] GPR00: c75dcab4 c5a31da0 c7012ab0 c7012ab0 00000078 00000000 00009032 100184c8 [ 8030.384540] GPR08: c75dcac0 00000001 c75dcab3 c5a31dfc 00000000 1001d564 00000000 10017e08 [ 8030.392921] GPR16: 00000000 10019e40 0000000b 00000111 00000000 00000000 0000005c 100184e0 [ 8030.401301] GPR24: 00000000 00009032 c75dcaac c75dcab4 c5a30000 c75dcac2 c5a30000 c5a31ddc [ 8030.409859] Call Trace: [ 8030.412296] [c5a31da0] [c0046184] (unreliable) [ 8030.416821] [c5a31dd0] [c02a2984] [ 8030.420215] [c5a31e30] [c01345b4] [ 8030.423610] [c5a31f10] [c0004ed8] [ 8030.427003] [c5a31f40] [c00105b8] [ 8030.430396] --- Exception: c01Instruction dump: [ 8030.434922] 381b0008 917f0020 91290004 916b0004 813b0008 7f804800 419e001c 3b49fff4 [ 8030.442694] 801a002c 7f600278 3140ffff 7d2a0110 <0f090000> 7fe3fb78 7f64db78 4810d65d $ powerpc-axon-linux-addr2line -i -e ./vmlinux c0045f8c /home/leon/sandbox/mpc8313rdk/openembedded/build/tmp/work/linux-rt-2.6.24-r3/linux-2.6.24.3/kernel/rtmutex.c:440 $ powerpc-axon-linux-addr2line -i -e ./vmlinux c029e1a8 /home/leon/sandbox/mpc8313rdk/openembedded/build/tmp/work/linux-rt-2.6.24-r3/linux-2.6.24.3/kernel/rtmutex.c:720 $ powerpc-axon-linux-addr2line -i -e ./vmlinux c012fdf8 /home/leon/sandbox/mpc8313rdk/openembedded/build/tmp/work/linux-rt-2.6.24-r3/linux-2.6.24.3/include/asm/atomic.h:22 /home/leon/sandbox/mpc8313rdk/openembedded/build/tmp/work/linux-rt-2.6.24-r3/linux-2.6.24.3/include/asm-generic/atomic.h:148 /home/leon/sandbox/mpc8313rdk/openembedded/build/tmp/work/linux-rt-2.6.24-r3/linux-2.6.24.3/include/linux/fs.h:530 /home/leon/sandbox/mpc8313rdk/openembedded/build/tmp/work/linux-rt-2.6.24-r3/linux-2.6.24.3/ipc/shm.c:635 $ powerpc-axon-linux-addr2line -i -e ./vmlinux c0004ed8 /home/leon/sandbox/mpc8313rdk/openembedded/build/tmp/work/linux-rt-2.6.24-r3/linux-2.6.24.3/arch/powerpc/kernel/syscalls.c:132 $ powerpc-axon-linux-addr2line -i -e ./vmlinux c00103d8 /home/leon/sandbox/mpc8313rdk/openembedded/build/tmp/work/linux-rt-2.6.24-r3/linux-2.6.24.3/arch/powerpc/kernel/entry_32.S:223 If any further info is required to track this one down. Regards, -- Leon -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html