Hi, Bryan Thanks. Unfortunately, it is not easy to reproduce the problem in our HW. We only observed 2~3 times so far. But we do enable HIGHMEM, SMP and L2 cache in our config. That's why I'd like to know the root cause. On Wed, Nov 24, 2010 at 12:21 PM, Bryan Wu <bryan.wu@xxxxxxxxxxxxx> wrote: > Tao Hu, > > Did you try the similar solution in our Ubuntu kernel? We suspect it > related to HIGHMEM, SMP and cache control code. > And how about your test case? > > Thanks a lot, > -Bryan > > On Wed, Nov 24, 2010 at 11:11 AM, TAO HU <tghk48@xxxxxxxxxxxx> wrote: >> Hi, All >> >> We got following errors on OMAP ES2.0 board. >> >> And noticed a similar case was reported at below link >> http://www.opensubscriber.com/message/kernel-team@xxxxxxxxxxxxxxxx/14591440.html >> >> Is any conclusion/fix available? >> >> <1>[ 348.873840] Unhandled fault: imprecise external abort (0x1406) at >> 0x462d301c >> <1>[ 348.885040] Unhandled fault: imprecise external abort (0x1406) at >> 0xbe8fec78 >> <1>[ 348.897247] Unhandled fault: imprecise external abort (0x1406) at >> 0xbe8fec78 >> <1>[ 348.954772] Unhandled fault: imprecise external abort (0x1406) at >> 0xb000c454 >> <1>[ 348.967590] Unhandled fault: imprecise external abort (0x1406) at >> 0xb000c454 >> <1>[ 348.989471] Unhandled fault: imprecise external abort (0x1406) at >> 0xbeb02fb8 >> <4>[ 349.006683] Process 2664(coredump) has RLIMIT_CORE set to 1 >> <4>[ 349.012481] Aborting core >> <1>[ 349.023040] Unhandled fault: imprecise external abort (0x1406) at >> 0xbeb02fb8 >> <1>[ 349.041625] Unhandled fault: imprecise external abort (0x1406) at >> 0xbed6cfbc >> <4>[ 349.061370] Process 2665(kkkkkkkkkkkkkkk) has RLIMIT_CORE set to 1 >> <4>[ 349.067810] Aborting core >> <0>[ 349.077362] Kernel panic - not syncing: Attempted to kill init! >> >> -- >> Best Regards >> Hu Tao >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-omap" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> > -- Best Regards Hu Tao -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
