After adding some printk information, the PC is changed [ 67.748144] Unable to handle kernel paging request at virtual address 60000093 [ 67.749548] ikepanhc: platform_cpu_die:86 [ 67.749553] CPU2: shutdown [ 67.749890] ikepanhc: platform_cpu_die:89 [ 67.749904] Unable to handle kernel NULL pointer dereference at virtual address 00000093 [ 67.749909] pgd = c0004000 [ 67.749921] Internal error: Oops: 15 [#1] SMP ARM [ 67.749925] Modules linked in: dm_multipath dm_raid45 dm_mirror dm_region_hash dm_log [ 67.749946] CPU: 2 Not tainted (3.5.0-1608-armadaxp #10~d20130204t154142) [ 67.749959] PC is at armadaxp_fabric_prepare_hotplug+0x7c/0x10c [ 67.749967] LR is at platform_cpu_die+0x27/0xb4 [ 67.749973] pc : [<c08b949c>] lr : [<c065bc6b>] psr: 20000093 [ 67.749973] sp : ef063f90 ip : ef063ed8 fp : ef063fa4 [ 67.749977] r10: 00000000 r9 : 562f5842 r8 : 0000001d [ 67.749981] r7 : c094378c r6 : c07ea3e4 r5 : c0943118 r4 : 00000002 [ 67.749986] r3 : 60000093 r2 : 00000000 r1 : 00000093 r0 : 0000001d [ 67.749991] Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel [ 67.749995] Control: 10c53c7d Table: 0000406a DAC: 00000015 [ 67.750000] Process swapper/2 (pid: 0, stack limit = 0xef0622f0) [ 67.750004] Stack: (0xef063f90 to 0xef064000) [ 67.750011] 3f80: ef062000 00000002 ef063fbc ef063fa8 [ 67.750020] 3fa0: c065bc20 c065bc50 ef062000 c0681fe8 ef063fd4 ef063fc0 c000ede4 c065bbf4 [ 67.750029] 3fc0: c0915df8 00000002 ef063ff4 ef063fd8 c066c14c c000ed94 c066bb1c 2f05406a [ 67.750037] 3fe0: 00000015 10c03c7d 00000000 ef063ff8 0066bb34 c066c050 fdefffdf feff9afe [ 67.750040] Backtrace: [ 67.750052] [<c065bc44>] (platform_cpu_die+0x0/0xb4) from [<c065bc20>] (cpu_die+0x38/0x5c) [ 67.750055] r5:00000002 r4:ef062000
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1090591 Title: armadaXP: Unable to handle kernel NULL pointer dereference at virtual address 00000000 on shutdown To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-armadaxp/+bug/1090591/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
