I reproduced this issue on my omap4 board, --- [ 1446.044982] Unhandled fault: imprecise external abort (0x1c06) at 0x00518a0c [ 1446.052429] Internal error: : 1c06 [#1] PREEMPT SMP [ 1446.057556] last sysfs file: /sys/kernel/uevent_seqnum [ 1446.062957] Modules linked in: twl4030_pwrbutton [ 1446.067810] CPU: 0 Not tainted (2.6.35-903-omap4 #11+bounce) [ 1446.074127] PC is at __dabt_usr+0x2c/0x40 [ 1446.078338] LR is at 0x334a6c [ 1446.081420] pc : [<c0544eac>] lr : [<00334a6c>] psr: 40000093 [ 1446.081451] sp : ef2bdfb0 ip : 0000000c fp : 00710bb4 [ 1446.093414] r10: bea272dc r9 : bea272a8 r8 : 41b2d4e0 [ 1446.098876] r7 : 00000001 r6 : 00000000 r5 : 00000028 r4 : ffffffff [ 1446.105712] r3 : 40000030 r2 : 00057e14 r1 : bea272dc r0 : 10c53c7d [ 1446.112518] Flags: nZcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user [ 1446.120056] Control: 10c53c7d Table: af3e404a DAC: 00000015 [ 1446.126037] Process cc1 (pid: 8806, stack limit = 0xef2bc2f8) [ 1446.132049] Stack: (0xef2bdfb0 to 0xef2be000) [ 1446.136596] dfa0: bea272dc 00000001 00000002 01279f40 [ 1446.145141] dfc0: bea272dc 00000028 00000000 00000001 41b2d4e0 bea272a8 bea272dc 00710bb4 [ 1446.153686] dfe0: 0000000c bea27158 00466209 00057e14 40000030 ffffffff 00000000 00000000 [ 1446.162231] Code: e9406000 e51f0048 e5900000 ee010f10 (ebec154b) ----
As discussed with Ricardo, we plan to try upstream mainline kernel on our ES2.0 for this issue. -- instabilities with highmem activated https://bugs.launchpad.net/bugs/633227 You received this bug notification because you are a member of TI OMAP Developers, which is a direct subscriber. Status in “linux-ti-omap4” package in Ubuntu: New Bug description: Seen on Maverick: 2.6.35-903.9 HW: pandaboard ES2.0 Using following kernel memory allocation (in bootargs): mem=4...@0x80000000 mem=5...@0xa0000000 Instabilities have been observed in 2 different ways: 1) The following memtester test: sudo memtester -p 0xb0000000 120 Fails in few seconds with a "illegal instruction” error. Then various behaviors can be seen: the UI can freeze, shell commands be unavailable. The systems works well again after a reboot. 2) By doing a native build of a kernel package (with file-system on SD card, and kernel sources on an NFS mount): After 15mins to 1h30, a "compiler error: bus error" triggers and the build stops (and the platform hangs). This issue cannot be reproduced if using mem=4...@0x80000000 mem=2...@0xa000000. This issue cannot be reproduced with highmen deactivated from the kernel config. This issue can be reproduced with 'nosmp' in kernel command line. _______________________________________________ Mailing list: https://launchpad.net/~tiomap-dev Post to : [email protected] Unsubscribe : https://launchpad.net/~tiomap-dev More help : https://help.launchpad.net/ListHelp
