What's the procedure for filing bug reports related to kernel panics on CentOS/RHEL? I've just had the following kernel panic on one of the new mailstores (argh!). Would this have to be reproduceable to warrant a bug report?
Feb 28 14:40:53 tempmailstore1a kernel: eip: c0146a64 Feb 28 14:40:53 tempmailstore1a kernel: eip: c0146a64 Feb 28 14:40:53 tempmailstore1a kernel: ------------[ cut here ]------------ Feb 28 14:40:53 tempmailstore1a kernel: kernel BUG at include/asm/spinlock.h:133! Feb 28 14:40:53 tempmailstore1a kernel: invalid operand: 0000 [#1] Feb 28 14:40:53 tempmailstore1a kernel: SMP Feb 28 14:40:53 tempmailstore1a kernel: Modules linked in: nfs iptable_filter ip_tables nfsd exportfs lockd sunrpc ip_vs drbd(U) md5 ipv6 autofs4 button batte ry ac ohci_hcd tg3 floppy sg dm_snapshot dm_zero dm_mirror ext3 jbd dm_mod megaraid_mbox megaraid_mm sd_mod scsi_mod Feb 28 14:40:53 tempmailstore1a kernel: CPU: 0 Feb 28 14:40:53 tempmailstore1a kernel: EIP: 0060:[<c02cfb49>] Not tainted VLI Feb 28 14:40:53 tempmailstore1a kernel: EFLAGS: 00010046 (2.6.9-22.0.1.ELsmp) Feb 28 14:40:53 tempmailstore1a kernel: EIP is at _spin_lock+0x1c/0x34 Feb 28 14:40:53 tempmailstore1a kernel: eax: c02e35dc ebx: c144ba58 ecx: f6acbed8 edx: c0146a64 Feb 28 14:40:53 tempmailstore1a kernel: esi: e386cc00 edi: c16848c8 ebp: 2002002c esp: f6acbedc Feb 28 14:40:53 tempmailstore1a kernel: ds: 007b es: 007b ss: 0068 Feb 28 14:40:53 tempmailstore1a kernel: Process nfsd (pid: 6512, threadinfo=f6acb000 task=f7a16330) Feb 28 14:40:53 tempmailstore1a kernel: Stack: c16848b8 c0146a64 c16848b8 c144b998 c16848b8 e386cc00 c16848c8 00000286 Feb 28 14:40:53 tempmailstore1a kernel: c0146e84 e386cc00 bbfb9f0b fffffff5 f8e7cf20 f8e6ac04 00000000 f8e7eae4 Feb 28 14:40:53 tempmailstore1a kernel: 00000000 f7dd9b50 f7dd9a00 e386cc00 f6acbf55 f7dd9a00 f8e6923c c19f31f4 Feb 28 14:40:53 tempmailstore1a kernel: Call Trace: Feb 28 14:40:53 tempmailstore1a kernel: [<c0146a64>] cache_flusharray+0x1a/0x9c Feb 28 14:40:53 tempmailstore1a kernel: [<c0146e84>] kfree+0x43/0x51 Feb 28 14:40:53 tempmailstore1a kernel: [<f8e6ac04>] cache_check+0x11c/0x126 [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8e6923c>] svcauth_unix_set_client+0x68/0xb5 [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8e69561>] svcauth_unix_accept+0x189/0x292 [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8e6877f>] svc_set_client+0x43/0x46 [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8e66292>] svc_process+0x284/0x6ce [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8eb745a>] nfsd+0x1cc/0x332 [nfsd] Feb 28 14:40:53 tempmailstore1a kernel: [<f8eb728e>] nfsd+0x0/0x332 [nfsd] Feb 28 14:40:53 tempmailstore1a kernel: [<c01041f1>] kernel_thread_helper+0x5/0xb Feb 28 14:40:53 tempmailstore1a kernel: Code: 00 75 09 f0 81 02 00 00 00 01 30 c9 89 c8 c3 53 89 c3 81 78 04 ad 4e ad de 74 18 ff 74 24 04 68 dc 35 2e c0 e8 e 3 26 e5 ff 58 5a <0f> 0b 85 00 96 26 2e c0 f0 fe 0b 79 09 f3 90 80 3b 00 7e f9 eb Feb 28 14:40:53 tempmailstore1a kernel: ------------[ cut here ]------------ Feb 28 14:40:53 tempmailstore1a kernel: kernel BUG at include/asm/spinlock.h:133! Feb 28 14:40:53 tempmailstore1a kernel: invalid operand: 0000 [#2] Feb 28 14:40:53 tempmailstore1a kernel: SMP Feb 28 14:40:53 tempmailstore1a kernel: Modules linked in: nfs iptable_filter ip_tables nfsd exportfs lockd sunrpc ip_vs drbd(U) md5 ipv6 autofs4 button batte ry ac ohci_hcd tg3 floppy sg dm_snapshot dm_zero dm_mirror ext3 jbd dm_mod megaraid_mbox megaraid_mm sd_mod scsi_mod Feb 28 14:40:53 tempmailstore1a kernel: CPU: 1 Feb 28 14:40:53 tempmailstore1a kernel: EIP: 0060:[<c02cfb49>] Not tainted VLI Feb 28 14:40:53 tempmailstore1a kernel: EFLAGS: 00010002 (2.6.9-22.0.1.ELsmp) Feb 28 14:40:53 tempmailstore1a kernel: Fatal exception: panic in 5 seconds Feb 28 14:40:53 tempmailstore1a kernel: eip: c0146a64 Feb 28 14:40:53 tempmailstore1a kernel: EIP is at _spin_lock+0x1c/0x34 Feb 28 14:40:53 tempmailstore1a kernel: eax: c02e35dc ebx: c1470e58 ecx: c2ea1ed8 edx: c0146a64 Feb 28 14:40:53 tempmailstore1a kernel: esi: e386cc00 edi: c1470da8 ebp: 20000080 esp: c2ea1edc Feb 28 14:40:53 tempmailstore1a kernel: ds: 007b es: 007b ss: 0068 Feb 28 14:40:53 tempmailstore1a kernel: Process nfsd (pid: 6513, threadinfo=c2ea1000 task=f7b40130) Feb 28 14:40:53 tempmailstore1a kernel: Stack: c1470d98 c0146a64 c1470d98 c1470d98 c1470d98 e386cc00 c1470da8 00000286 Feb 28 14:40:53 tempmailstore1a kernel: c0146e84 e386cc00 bbfb9f0b fffffff5 f8e7cf20 f8e6ac04 00000000 f8e7eae4 Feb 28 14:40:53 tempmailstore1a kernel: 00000000 f519c350 f519c200 e386cc00 c2ea1f55 f519c200 f8e6923c c19f31f4 Feb 28 14:40:53 tempmailstore1a kernel: Call Trace: Feb 28 14:40:53 tempmailstore1a kernel: [<c0146a64>] cache_flusharray+0x1a/0x9c Feb 28 14:40:53 tempmailstore1a kernel: [<c0146e84>] kfree+0x43/0x51 Feb 28 14:40:53 tempmailstore1a kernel: [<f8e6ac04>] cache_check+0x11c/0x126 [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8e6923c>] svcauth_unix_set_client+0x68/0xb5 [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8e69561>] svcauth_unix_accept+0x189/0x292 [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8e6877f>] svc_set_client+0x43/0x46 [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8e66292>] svc_process+0x284/0x6ce [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8eb745a>] nfsd+0x1cc/0x332 [nfsd] Feb 28 14:40:53 tempmailstore1a kernel: [<f8eb728e>] nfsd+0x0/0x332 [nfsd] Feb 28 14:40:53 tempmailstore1a kernel: [<c01041f1>] kernel_thread_helper+0x5/0xb Feb 28 14:40:53 tempmailstore1a kernel: Code: 00 75 09 f0 81 02 00 00 00 01 30 c9 89 c8 c3 53 89 c3 81 78 04 ad 4e ad de 74 18 ff 74 24 04 68 dc 35 2e c0 e8 e 3 26 e5 ff 58 5a <0f> 0b 85 00 96 26 2e c0 f0 fe 0b 79 09 f3 90 80 3b 00 7e f9 eb Feb 28 14:40:53 tempmailstore1a kernel: ------------[ cut here ]------------ Feb 28 14:40:53 tempmailstore1a kernel: Fatal exception: panic in 5 seconds Feb 28 14:40:53 tempmailstore1a kernel: kernel BUG at include/asm/spinlock.h:133! Feb 28 14:40:53 tempmailstore1a kernel: invalid operand: 0000 [#3] Feb 28 14:40:53 tempmailstore1a kernel: SMP Feb 28 14:40:53 tempmailstore1a kernel: Modules linked in: nfs iptable_filter ip_tables nfsd exportfs lockd sunrpc ip_vs drbd(U) md5 ipv6 autofs4 button batte ry ac ohci_hcd tg3 floppy sg dm_snapshot dm_zero dm_mirror ext3 jbd dm_mod megaraid_mbox megaraid_mm sd_mod scsi_mod Feb 28 14:40:53 tempmailstore1a kernel: CPU: 0 Feb 28 14:40:53 tempmailstore1a kernel: EIP: 0060:[<c02cfb49>] Not tainted VLI Feb 28 14:40:53 tempmailstore1a kernel: EFLAGS: 00010002 (2.6.9-22.0.1.ELsmp) Feb 28 14:40:53 tempmailstore1a kernel: EIP is at _spin_lock+0x1c/0x34 Feb 28 14:40:53 tempmailstore1a kernel: eax: c02e35dc ebx: c144ba58 ecx: ca0cce98 edx: c0146a64 Feb 28 14:40:53 tempmailstore1a kernel: esi: e386cc00 edi: c16848c8 ebp: 2002002c esp: ca0cce9c Feb 28 14:40:53 tempmailstore1a kernel: ds: 007b es: 007b ss: 0068 Feb 28 14:40:53 tempmailstore1a kernel: Process rpc.mountd (pid: 6525, threadinfo=ca0cc000 task=c1b182b0) Feb 28 14:40:53 tempmailstore1a kernel: Stack: c16848b8 c0146a64 c16848b8 c144b998 c16848b8 e386cc00 c16848c8 00000286 Feb 28 14:40:53 tempmailstore1a kernel: c0146e84 e386cc00 f7a1c5c0 440467fd ca0cceec f8e68d35 ca0ccefa 000000c0 Feb 28 14:40:53 tempmailstore1a kernel: 000000a8 00000018 00000014 bfe1109c f8e7ff66 31343131 34393331 00003335 Feb 28 14:40:53 tempmailstore1a kernel: Call Trace: Feb 28 14:40:53 tempmailstore1a kernel: [<c0146a64>] cache_flusharray+0x1a/0x9c Feb 28 14:40:53 tempmailstore1a kernel: [<c0146e84>] kfree+0x43/0x51 Feb 28 14:40:53 tempmailstore1a kernel: [<f8e68d35>] ip_map_parse+0x194/0x1bc [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8e68ba1>] ip_map_parse+0x0/0x1bc [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<f8e6b741>] cache_write+0xf8/0x115 [sunrpc] Feb 28 14:40:53 tempmailstore1a kernel: [<c0159d24>] vfs_write+0xb6/0xe2 Feb 28 14:40:53 tempmailstore1a kernel: [<c0159dee>] sys_write+0x3c/0x62 Feb 28 14:40:53 tempmailstore1a kernel: [<c02d0fb7>] syscall_call+0x7/0xb Feb 28 14:40:53 tempmailstore1a kernel: [<c02d007b>] __lock_text_end+0x232/0x100f Feb 28 14:40:53 tempmailstore1a kernel: Code: 00 75 09 f0 81 02 00 00 00 01 30 c9 89 c8 c3 53 89 c3 81 78 04 ad 4e ad de 74 18 ff 74 24 04 68 dc 35 2e c0 e8 e 3 26 e5 ff 58 5a <0f> 0b 85 00 96 26 2e c0 f0 fe 0b 79 09 f3 90 80 3b 00 7e f9 eb Feb 28 14:40:53 tempmailstore1a kernel: <0>Fatal exception: panic in 5 seconds Feb 28 14:40:53 tempmailstore1a kernel: Unable to handle kernel paging request at virtual address 2b69616f Feb 28 14:40:53 tempmailstore1a kernel: printing eip: Feb 28 14:40:53 tempmailstore1a kernel: f887eaa1 Feb 28 15:09:01 tempmailstore1a syslogd 1.4.1: restart.
Will.