Bug 126235 (kswapd)
| Summary: | Kswapd seem to have problems with high I/O workload | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Gustavo Kuhn Andriotti <fgka> |
| Component: | kernel | Assignee: | Arjan van de Ven <arjanv> |
| Status: | CLOSED DUPLICATE | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 2 | ||
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i686 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2006-02-21 19:04:07 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
*** This bug has been marked as a duplicate of 126234 *** It seems that I've a similar problem: high load & Problems with Swapping (see below). After crash only turning of and on helps. The Server is now crashing 1-2 times a day(!) uname -a: Linux fedora 2.6.5-1.358 #1 Sat May 8 09:04:50 EDT 2004 i686 athlon i386 GNU/Linux /var/log/messages: Sep 18 17:12:54 fedora kernel: ------------[ cut here ]------------ Sep 18 17:12:54 fedora kernel: kernel BUG at mm/swap.c:51! Sep 18 17:12:54 fedora kernel: invalid operand: 0000 [#1] Sep 18 17:12:54 fedora kernel: CPU: 0 Sep 18 17:12:54 fedora kernel: EIP: 0060:[<02131fef>] Not tainted Sep 18 17:12:54 fedora kernel: EFLAGS: 00010246 (2.6.5-1.358) Sep 18 17:12:54 fedora kernel: EIP is at put_page+0x57/0x71 Sep 18 17:12:54 fedora kernel: eax: 00000000 ebx: 2023bf70 ecx: 031fcb60 edx: 031fcb60 Sep 18 17:12:54 fedora kernel: esi: 000003dc edi: 00000020 ebp: 02347f14 esp: 18892be8 Sep 18 17:12:54 fedora kernel: ds: 007b es: 007b ss: 0068 Sep 18 17:12:54 fedora kernel: Process httpd (pid: 19343, threadinfo=18892000 task=08578630) Sep 18 17:12:54 fedora kernel: Stack: 02134aa0 1f180d00 1f180d00 1f180d00 1d076a80 0213821b 02347f14 0000024a Sep 18 17:12:54 fedora kernel: 1f180d00 18892000 02116d32 08578630 02148b6f 1f180d00 00000000 18892000 Sep 18 17:12:54 fedora kernel: 1cbc0d00 1b8bab00 0214904a 18892e60 18892000 18892e60 ff000000 1a920380 Sep 18 17:12:54 fedora kernel: Call Trace: Sep 18 17:12:54 fedora kernel: [<02134aa0>] clear_page_tables+0x7c/0x8f Sep 18 17:12:54 fedora kernel: [<0213821b>] exit_mmap+0x85/0x11c Sep 18 17:12:54 fedora kernel: [<02116d32>] mmput+0x3d/0x58 Sep 18 17:12:54 fedora kernel: [<02148b6f>] exec_mmap+0xb0/0xcb Sep 18 17:12:54 fedora kernel: [<0214904a>] flush_old_exec+0x4c0/0x64b Sep 18 17:12:54 fedora kernel: [<0215e847>] load_elf_binary+0x497/0xaeb Sep 18 17:12:54 fedora kernel: [<02141e11>] get_empty_filp+0x67/0xcc Sep 18 17:12:54 fedora kernel: [<02148ab5>] kernel_read+0x31/0x3b Sep 18 17:12:54 fedora kernel: [<021493d9>] search_binary_handler+0x6f/0x1a1 Sep 18 17:12:54 fedora kernel: [<0215da08>] load_script+0x1bc/0x1cc Sep 18 17:12:54 fedora kernel: [<02135342>] follow_page+0xda/0xe5 Sep 18 17:12:54 fedora kernel: [<0213f1ba>] rw_vm+0x1ce/0x1ea Sep 18 17:12:54 fedora kernel: [<021493d9>] search_binary_handler+0x6f/0x1a1 Sep 18 17:12:54 fedora kernel: [<02149692>] do_execve+0x187/0x219 Sep 18 17:12:54 fedora kernel: [<0210492d>] sys_execve+0x2a/0x6f Sep 18 17:12:54 fedora kernel: Sep 18 17:12:54 fedora kernel: Code: 0f 0b 33 00 f3 43 29 02 ff 4a 04 0f 94 c0 84 c0 74 07 89 d0 Sep 18 19:55:57 fedora kernel: ------------[ cut here ]------------ Sep 18 19:55:57 fedora kernel: kernel BUG at mm/swap.c:51! Sep 18 19:55:57 fedora kernel: invalid operand: 0000 [#2] Sep 18 19:55:57 fedora kernel: CPU: 0 Sep 18 19:55:57 fedora kernel: EIP: 0060:[<02131fef>] Not tainted Sep 18 19:55:57 fedora kernel: EFLAGS: 00010246 (2.6.5-1.358) Sep 18 19:55:57 fedora kernel: EIP is at put_page+0x57/0x71 Sep 18 19:55:57 fedora kernel: eax: 00000000 ebx: 0f9c6f70 ecx: 03386d00 edx: 03386d00 Sep 18 19:55:57 fedora kernel: esi: 000003dc edi: 00000020 ebp: 02347f14 esp: 03f05be8 Sep 18 19:55:57 fedora kernel: ds: 007b es: 007b ss: 0068 Sep 18 19:55:57 fedora kernel: Process httpd (pid: 27580, threadinfo=03f05000 task=1bb69830) Sep 18 19:55:57 fedora kernel: Stack: 02134aa0 1b7b5300 1b7b5300 1b7b5300 085c8580 0213821b 02347f14 0000026c Sep 18 19:55:57 fedora kernel: 1b7b5300 03f05000 02116d32 1bb69830 02148b6f 1b7b5300 00000000 03f05000 Sep 18 19:55:57 fedora kernel: 19357500 0f602500 0214904a 03f05e60 03f05000 03f05e60 ff000000 0726fc80 Sep 18 19:55:57 fedora kernel: Call Trace: Sep 18 19:55:57 fedora kernel: [<02134aa0>] clear_page_tables+0x7c/0x8f Sep 18 19:55:57 fedora kernel: [<0213821b>] exit_mmap+0x85/0x11c Sep 18 19:55:57 fedora kernel: [<02116d32>] mmput+0x3d/0x58 Sep 18 19:55:57 fedora kernel: [<02148b6f>] exec_mmap+0xb0/0xcb Sep 18 19:55:57 fedora kernel: [<0214904a>] flush_old_exec+0x4c0/0x64b Sep 18 19:55:57 fedora kernel: [<0215e847>] load_elf_binary+0x497/0xaeb Sep 18 19:55:57 fedora kernel: [<02141e11>] get_empty_filp+0x67/0xcc Sep 18 19:55:57 fedora kernel: [<02148ab5>] kernel_read+0x31/0x3b Sep 18 19:55:57 fedora kernel: [<021493d9>] search_binary_handler+0x6f/0x1a1 Sep 18 19:55:57 fedora kernel: [<0215da08>] load_script+0x1bc/0x1cc Sep 18 19:55:57 fedora kernel: [<02135342>] follow_page+0xda/0xe5 Sep 18 19:55:57 fedora kernel: [<0213f1ba>] rw_vm+0x1ce/0x1ea Sep 18 19:55:57 fedora kernel: [<021493d9>] search_binary_handler+0x6f/0x1a1 Sep 18 19:55:57 fedora kernel: [<02149692>] do_execve+0x187/0x219 Sep 18 19:55:57 fedora kernel: [<0210492d>] sys_execve+0x2a/0x6f Sep 18 19:55:57 fedora kernel: Sep 18 19:55:57 fedora kernel: Code: 0f 0b 33 00 f3 43 29 02 ff 4a 04 0f 94 c0 84 c0 74 07 89 d0 Changed to 'CLOSED' state since 'RESOLVED' has been deprecated. |
Description of problem: Hardware: Compaq Presario X1030 processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 9 model name : Intel(R) Pentium(R) M processor 1400MHz stepping : 5 cpu MHz : 598.126 cache size : 1024 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr mce cx8 mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 tm pbe tm2 est bogomips : 1186.66 Memory: 512MB total used free shared buffers cached Mem: 517036 510792 6244 0 1268 56276 -/+ buffers/cache: 453248 63788 Swap: 530104 7568 522536 ---------------------------------------------- If swap memory is in use, about 200MB in my case, and a high I/O workload start the S.O. became too overloaded and do not recover by itself, need to turn off the equipment. Version-Release number of selected component (if applicable): kernel-2.6.6-1.435 O.S. updated on 15.06.2004 (complete O.S. update). How reproducible: Given those condintions it is always reproducible Steps to Reproduce: 1. Manage to use swap memory (about 50% is OK); 2. Start any I/O bound process, like some huge file copy; 3. Wait until LA is about 5 (in my case) and start another I/O bound process. Actual results: CPU, Memory and swap memory usage goes to 100% and Load Avarage goes to 10 or 15, depending on the case. If nothing is done quickly the O.S. can not be administrate to end any process and try to "save" the current state. Expected results: O.S. kernel should manage this workload and swap memory and goes to a normal usage level after some tasks ends up. Additional info: This problem was observed on RHAS2.1 machines and, in lower degree, in RHAS3.0 and RH9.0. It seems a recurring problem.