Hi guys,<div><br></div><div>Is anyone else having kernel issues with CentOS 5.6?</div><div>I cant get it stable on as a LAMP platform.</div><div><br></div><div>Everything is up-to-date and yet I'm running into major problems.</div>
<div>How do I make sense of these kernel errors? Any help will be greatly appreciated, as I'm now had to roll back to an old copy of CentOS to keep my systems stable.</div><div><br></div><div><br></div><div>Random Cron:</div>
<div><br></div><div><div> 14857 kernel: Oops: 0003 [#3]</div><div> 14857 kernel: SMP </div><div> 14857 kernel: CPU: 0</div><div> 14857 kernel: EIP is at pgd_free+0x104/0x140</div><div> 14857 kernel: eax: 00000000 ebx: 00000000 ecx: 00000400 edx: 80000003</div>
<div> 14857 kernel: esi: e8caa000 edi: e8caa000 ebp: e8cffd68 esp: e8cffd48</div><div> 14857 kernel: ds: 007b es: 007b ss: 0069</div><div> 14857 kernel: Process crond (pid: 2620, threadinfo=e8cfe000 task=e9419550)</div>
<div> 14857 kernel: Stack: <0>e8caa000 00000000 00000003 e8ca3c44 e8ca6018 e8c6f740 e8c6f788 e8c6f740 </div><div> 14857 kernel: e8cffd7c c011bd9b e8ca6000 e8c6f788 e8c6f740 e8cffd90 c011be50 e8c6f740 </div><div> 14857 kernel: e8cffde8 00007ff0 e8cffe20 c0170a8a e8c6f740 e8c6f740 c030b547 e8cffdb8 </div>
<div> 14857 kernel: Call Trace:</div><div> 14857 kernel: [<c01058bd>] show_stack_log_lvl+0xcd/0x120</div><div> 14857 kernel: [<c0105abb>] show_registers+0x1ab/0x240</div><div> 14857 kernel: [<c0105dc1>] die+0x111/0x240</div>
<div> 14857 kernel: [<c01130a7>] do_page_fault+0x5f7/0x931</div><div> 14857 kernel: [<c01052ab>] error_code+0x2b/0x30</div><div> 14857 kernel: [<c011bd9b>] __mmdrop+0x1b/0x50</div><div> 14857 kernel: [<c011be50>] mmput+0x80/0xa0</div>
<div> 14857 kernel: [<c0170a8a>] flush_old_exec+0x1ba/0xb30</div><div> 14857 kernel: [<c0191e1f>] load_elf_binary+0x26f/0x1780</div><div> 14857 kernel: [<c0171602>] search_binary_handler+0x92/0x240</div>
<div> 14857 kernel: [<c0171923>] do_execve+0x173/0x215</div><div> 14857 kernel: [<c0103892>] sys_execve+0x42/0xa0</div><div> 14857 kernel: [<c0105119>] syscall_call+0x7/0xb</div><div> 14857 kernel: Code: e1 0c 25 ff 0f 00 00 09 c1 89 ce 83 ce 01 81 ee 01 00 00 40 31 db 89 5c 24 04 89 f7 89 34 24 e8 53 eb ff ff 31 c0 b9 00 04 00 00 <f3> ab a1 e4 ec 3a c0 89 74 24 04 89 04 24 e8 39 dc 04 00 8b 45 </div>
</div><div><br></div><div>Random while updating a package with yum:</div><div><div>14857 kernel: Oops: 0003 [#4]</div><div> 14857 kernel: SMP </div><div> 14857 kernel: CPU: 0</div><div> 14857 kernel: EIP is at pgd_free+0x104/0x140</div>
<div> 14857 kernel: eax: 00000000 ebx: 00000000 ecx: 00000400 edx: 80000002</div><div> 14857 kernel: esi: e8545000 edi: e8545000 ebp: e8c8bd68 esp: e8c8bd48</div><div> 14857 kernel: ds: 007b es: 007b ss: 0069</div>
<div> 14857 kernel: Process yum (pid: 2721, threadinfo=e8c8a000 task=e9f65550)</div><div> 14857 kernel: Stack: <0>e8545000 00000000 00000003 e854c1d8 e8546018 e8c6f040 e8c6f088 e8c6f040 </div><div> 14857 kernel: e8c8bd7c c011bd9b e8546000 e8c6f088 e8c6f040 e8c8bd90 c011be50 e8c6f040 </div>
<div> 14857 kernel: e8c8bde8 00007ff0 e8c8be20 c0170a8a e8c6f040 e8c6f040 c030b547 e8c8bdb8 </div><div> 14857 kernel: Call Trace:</div><div> 14857 kernel: [<c01058bd>] show_stack_log_lvl+0xcd/0x120</div><div> 14857 kernel: [<c0105abb>] show_registers+0x1ab/0x240</div>
<div> 14857 kernel: [<c0105dc1>] die+0x111/0x240</div><div> 14857 kernel: [<c01130a7>] do_page_fault+0x5f7/0x931</div><div> 14857 kernel: [<c01052ab>] error_code+0x2b/0x30</div><div> 14857 kernel: [<c011bd9b>] __mmdrop+0x1b/0x50</div>
<div> 14857 kernel: [<c011be50>] mmput+0x80/0xa0</div><div> 14857 kernel: [<c0170a8a>] flush_old_exec+0x1ba/0xb30</div><div> 14857 kernel: [<c0191e1f>] load_elf_binary+0x26f/0x1780</div><div> 14857 kernel: [<c0171602>] search_binary_handler+0x92/0x240</div>
<div> 14857 kernel: [<c0171923>] do_execve+0x173/0x215</div><div> 14857 kernel: [<c0103892>] sys_execve+0x42/0xa0</div><div> 14857 kernel: [<c0105119>] syscall_call+0x7/0xb</div><div> 14857 kernel: Code: e1 0c 25 ff 0f 00 00 09 c1 89 ce 83 ce 01 81 ee 01 00 00 40 31 db 89 5c 24 04 89 f7 89 34 24 e8 53 eb ff ff 31 c0 b9 00 04 00 00 <f3> ab a1 e4 ec 3a c0 89 74 24 04 89 04 24 e8 39 dc 04 00 8b 45 </div>
</div><div><br></div><div>While serving httpd pages:</div><div><div>May 19 12:19:19 ip-10-234-90-180 kernel: Unable to handle kernel paging request at virtual address e6579000</div><div>May 19 12:19:19 ip-10-234-90-180 kernel: printing eip:</div>
<div>May 19 12:19:19 ip-10-234-90-180 kernel: c01123c4</div><div>May 19 12:19:19 ip-10-234-90-180 kernel: 00589000 -> *pde = 00000003:b9f9a027</div><div>May 19 12:19:19 ip-10-234-90-180 kernel: 0058a000 -> *pme = 00000003:146e0067</div>
<div>May 19 12:19:19 ip-10-234-90-180 kernel: 005c4000 -> *pte = 80000008:10392063</div><div>May 19 12:19:19 ip-10-234-90-180 kernel: Oops: 0003 [#1]</div><div>May 19 12:19:19 ip-10-234-90-180 kernel: SMP </div><div>May 19 12:19:19 ip-10-234-90-180 kernel: Modules linked in: fuse dm_mirror dm_multipath dm_mod</div>
<div>May 19 12:19:19 ip-10-234-90-180 kernel: CPU: 0</div><div>May 19 12:19:19 ip-10-234-90-180 kernel: EIP: 0061:[<c01123c4>] Tainted: GF VLI</div><div>May 19 12:19:19 ip-10-234-90-180 kernel: EFLAGS: 00010246 (2.6.16-xenU #1) </div>
<div>May 19 12:19:19 ip-10-234-90-180 kernel: EIP is at pgd_free+0x104/0x140</div><div>May 19 12:19:19 ip-10-234-90-180 kernel: eax: 00000000 ebx: 00000000 ecx: 00000400 edx: 80000008</div><div>May 19 12:19:19 ip-10-234-90-180 kernel: esi: e6579000 edi: e6579000 ebp: c2f95f00 esp: c2f95ee0</div>
<div>May 19 12:19:19 ip-10-234-90-180 kernel: ds: 007b es: 007b ss: 0069</div><div>May 19 12:19:19 ip-10-234-90-180 kernel: Process httpd (pid: 8267, threadinfo=c2f94000 task=d78a3a70)</div><div>May 19 12:19:19 ip-10-234-90-180 kernel: Stack: <0>e6579000 00000000 00000003 c2039a1c d75c7018 ed181200 ed181248 d78a3a70 </div>
<div>May 19 12:19:19 ip-10-234-90-180 kernel: c2f95f14 c011bd9b d75c7000 ed181248 ed181200 c2f95f28 c011be50 ed181200 </div><div>May 19 12:19:19 ip-10-234-90-180 kernel: ed181200 ed181234 c2f95f44 c011fdd0 ed181200 ed181200 c2f94000 d78a3a70 </div>
<div>May 19 12:19:19 ip-10-234-90-180 kernel: Call Trace:</div><div>May 19 12:19:19 ip-10-234-90-180 kernel: [<c01058bd>] show_stack_log_lvl+0xcd/0x120</div><div>May 19 12:19:19 ip-10-234-90-180 kernel: [<c0105abb>] show_registers+0x1ab/0x240</div>
<div>May 19 12:19:19 ip-10-234-90-180 kernel: [<c0105dc1>] die+0x111/0x240</div><div>May 19 12:19:19 ip-10-234-90-180 kernel: [<c01130a7>] do_page_fault+0x5f7/0x931</div><div>May 19 12:19:19 ip-10-234-90-180 kernel: [<c01052ab>] error_code+0x2b/0x30</div>
<div>May 19 12:19:19 ip-10-234-90-180 kernel: [<c011bd9b>] __mmdrop+0x1b/0x50</div><div>May 19 12:19:19 ip-10-234-90-180 kernel: [<c011be50>] mmput+0x80/0xa0</div><div>May 19 12:19:19 ip-10-234-90-180 kernel: [<c011fdd0>] exit_mm+0x80/0x100</div>
<div>May 19 12:19:19 ip-10-234-90-180 kernel: [<c0120bc3>] do_exit+0xf3/0x8f0</div><div>May 19 12:19:19 ip-10-234-90-180 kernel: [<c01213fb>] do_group_exit+0x3b/0xd0</div><div>May 19 12:19:19 ip-10-234-90-180 kernel: [<c01214a5>] sys_exit_group+0x15/0x20</div>
<div>May 19 12:19:19 ip-10-234-90-180 kernel: [<c0105119>] syscall_call+0x7/0xb</div><div>May 19 12:19:19 ip-10-234-90-180 kernel: Code: e1 0c 25 ff 0f 00 00 09 c1 89 ce 83 ce 01 81 ee 01 00 00 40 31 db 89 5c 24 04 89 f7 89 34 24 e8 53 eb ff ff 31 c0 b9 00 04 00 00 <f3> ab a1 e4 ec 3a c0 89 74 24 04 89 04 24 e8 39 dc 04 00 8b 45 </div>
<div>May 19 12:19:19 ip-10-234-90-180 kernel: <1>Fixing recursive fault but reboot is needed!</div></div><div><br></div><div>Thanks,</div><div>Matt</div>