A small update. The machine uses about 5.5G memory which is ok, but it also uses about 1.5G of swap, which is very odd... A similar machine (with 'only' 4G memory) runs just fine with 0 swap usage using SLES 8 beta9 (or 8?) orso. Regards, Arjen Arjen van der Meijden wrote:
Hi list,
We're running Suse 9 pro (latest suse smp kernel) on a dual Opteron 242 with 6GB memory, LSI megaraid 1600 + 2 disks in raid 0 and 4 in raid 5 on a Tyan Thunder K8S (with latest bios).
Uname -a: Linux apollo 2.4.21-149-smp #1 SMP Thu Nov 13 23:24:40 UTC 2003 x86_64 x86_64 x86_64 GNU/Linux
The machine is running a heavy mysql database.
It can stay up for about half an hour, before it crashes, leaving this in the warn-log:
Dec 20 09:59:14 apollo kernel: Unable to handle kernel paging request at virtual address 00000103c003a644 Dec 20 09:06:43 apollo last message repeated 3 times Dec 20 09:59:14 apollo kernel: printing rip: Dec 20 09:59:14 apollo kernel: ffffffff80148b29 Dec 20 09:59:14 apollo kernel: PML4 8063 PGD 0
Once it crashed with a more complete (and different) oops/panic:
Dec 20 20:28:02 apollo kernel: Unable to handle kernel paging request at virtual address 0000007f804537e0 Dec 20 20:28:02 apollo kernel: printing rip: Dec 20 20:28:02 apollo kernel: ffffffff801494f7 Dec 20 20:28:02 apollo kernel: PML4 1048b1067 PGD 0 Dec 20 20:28:02 apollo kernel: Oops: 0000 Dec 20 20:28:02 apollo kernel: CPU 1 Dec 20 20:28:02 apollo kernel: Pid: 7, comm: kswapd Not tainted Dec 20 20:28:02 apollo kernel: RIP: 0010:[kmem_cache_reap+343/880]{kmem_cache_reap+343} Dec 20 20:28:02 apollo kernel: RIP: 0010:[<ffffffff801494f7>]{kmem_cache_reap+343} Dec 20 20:28:02 apollo kernel: RSP: 0000:0000010100009df8 EFLAGS: 00010016 Dec 20 20:28:02 apollo kernel: RAX: 000ffffff0000000 RBX: 0000000000000003 RCX: 0000000000000019 Dec 20 20:28:02 apollo kernel: RDX: 0000007fffff8000 RSI: 0000000000000000 RDI: 00000100e78f3b10 Dec 20 20:28:02 apollo kernel: RBP: 00000100e78f4080 R08: 0000000000000033 R09: 00000100e78f3b30 Dec 20 20:28:02 apollo kernel: R10: 0000010102c44c30 R11: 0000010102c44c00 R12: 0000000000000058 Dec 20 20:28:02 apollo kernel: R13: 0000000000000002 R14: ffffffff7fffffff R15: 0000000080000000 Dec 20 20:28:02 apollo kernel: FS: 0000000000560b00(0000) GS:ffffffff804bbb00(0000) knlGS:0000000000000000 Dec 20 20:28:02 apollo kernel: CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b Dec 20 20:28:02 apollo kernel: CR2: 0000007f804537e0 CR3: 00000000e7902000 CR4: 00000000000006e0 Dec 20 20:28:02 apollo kernel: Process kswapd (pid: 7, stackpage=10100009000) Dec 20 20:28:02 apollo kernel: Stack: 0000010100009df8 0000000000000000 ffffffff8014ae20 00000100e78f3b20 Dec 20 20:28:02 apollo kernel: 0000000200000000 0000010001000048 0000000000000020 00000000000001d0 Dec 20 20:28:02 apollo kernel: 00000101000003c0 0000010100009e84 0000000000000000 0000000000000000 Dec 20 20:28:02 apollo kernel: Call Trace: [shrink_cache+1104/1184]{shrink_cache+1104} Dec 20 20:28:02 apollo kernel: Call Trace: [<ffffffff8014ae20>]{shrink_cache+1104} Dec 20 20:28:02 apollo kernel: [shrink_caches+41/128]{shrink_caches+41} [try_to_free_pages_zone+98/272]{try_to_free_pages_zone+98} Dec 20 20:28:02 apollo kernel: [<ffffffff8014b0f9>]{shrink_caches+41} [<ffffffff8014b1b2>]{try_to_free_pages_zone+98} Dec 20 20:28:02 apollo kernel: [kswapd_balance_pgdat+113/224]{kswapd_balance_pgdat+113} [kswapd_balance+28/64]{kswapd_balance+28} Dec 20 20:28:02 apollo kernel: [<ffffffff8014b3d1>]{kswapd_balance_pgdat+113} [<ffffffff8014b45c>]{kswapd_balance+28} Dec 20 20:28:02 apollo kernel: [kswapd+168/195]{kswapd+168} [child_rip+8/16]{child_rip+8} Dec 20 20:28:02 apollo kernel: [<ffffffff8014b5b8>]{kswapd+168} [<ffffffff80110ae4>]{child_rip+8} Dec 20 20:28:02 apollo kernel: [kswapd+0/195]{kswapd+0} [child_rip+0/16]{child_rip+0} Dec 20 20:28:02 apollo kernel: [<ffffffff8014b510>]{kswapd+0} [<ffffffff80110adc>]{child_rip+0} Dec 20 20:28:02 apollo kernel: Dec 20 20:28:02 apollo kernel: Dec 20 20:28:02 apollo kernel: Code: 48 0f b6 92 e0 b7 45 80 48 8b 14 d5 00 b6 45 80 48 8b 8a c8
I hope you guys are able to help,
Best regards,
Arjen van der Meijden Sysadmin Tweakers.net