Subject : [BUG] 2.6.25-rc2-git4 - Regression Kernel oops while running kernbench and tbench on powerpc Submitter : Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Date : 2008-02-20 16:01 References : http://lkml.org/lkml/2008/2/20/218 References : http://lkml.org/lkml/2008/1/18/71 This entry is being used for tracking a regression from 2.6.24. Please don't close it until the problem is fixed in the mainline.
The Kernel oops is still seen with the 2.6.23-rc5 kernel.
Surely 2.6.25-rc3?
(In reply to comment #2) > Surely 2.6.25-rc3? > yes, its seen in 2.6.25-rc3 and 2.6.25-rc3-git also.
This is visible in the 2.6.25-rc6-git3 kernel.
This is seen in the 2.6.25-rc8-git3 Oops: Kernel access of bad area, sig: 11 [#1] SMP NR_CPUS=128 NUMA pSeries Modules linked in: NIP: 0000000000004570 LR: 0000000010070928 CTR: 0000000010070a20 REGS: c0000007729eb8c0 TRAP: 0300 Not tainted (2.6.25-rc8-git3-autotest) MSR: 8000000000001000 <ME> CR: 28002422 XER: 00000000 DAR: c0000007729ebce0, DSISR: 000000000a000000 TASK = c00000077e79d200[3515] 'cc1' THREAD: c0000007729e8000 CPU: 2 GPR00: 0000000000004000 c0000007729ebb40 0000000000000099 000000000000d032 GPR04: 0000000000000099 00000000ffdbbe60 0000000010070a20 0000000000000001 GPR08: 0000000000000000 0000000048002428 c0000007729ebe30 0000998be2321500 GPR12: 8000000000001030 c000000000734000 00000000106b0620 0000000000000432 GPR16: 0000000010070a20 00000000100160e0 0000000010048290 00000000ffdbc268 GPR20: 00000000105b0000 0000000000000001 00000000100566d0 0000000010610000 GPR24: 00000000ffdbbe5c 00000000ffdbbe60 00000000f77ebcb0 0000000000000001 GPR28: 00000000f77ed8c0 00000000f77ebcb0 00000000f77e9f4c 00000000f77ebcb0 NIP [0000000000004570] 0x4570 LR [0000000010070928] 0x10070928 Call Trace: [c0000007729ebb40] [c0000007729ebbd0] 0xc0000007729ebbd0 (unreliable) [c0000007729ebbd0] [0000000010048290] 0x10048290 Instruction dump: 48000000 XXXXXXXX XXXXXXXX XXXXXXXX 41820008 XXXXXXXX XXXXXXXX XXXXXXXX 48000010 XXXXXXXX XXXXXXXX XXXXXXXX f92101a0 XXXXXXXX XXXXXXXX XXXXXXXX
Created attachment 15666 [details] Boot up log Similar kernel oops was seen 2.6.24-rc3-git2 while bootup, attached the boot message of the 2.6.24-rc3-git2 kernel and this kernel oops is reproducible from 2.6.24-rc8-git3 kernels onwards.
Regressions list annotation: Handled-By : Paul Mackerras <paulus@samba.org>
Update: References : http://lkml.org/lkml/2008/4/9/25 Handled-By : "Nish Aravamudan" <nish.aravamudan@gmail.com>
The patch posted at http://lkml.org/lkml/2008/4/23/70 resolves the kernel oops.
Kalamesh, it looks like solution have been committed and you confirmed that oops is gone in 2.6.26-rc1-git7. Rafael, I think it can be closed now. http://lkml.org/lkml/2008/5/10/52