WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

[Xen-devel] Re: pvops bug

To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] Re: pvops bug
From: Dulloor <dulloor@xxxxxxxxx>
Date: Mon, 22 Jun 2009 05:09:55 -0400
Delivery-date: Mon, 22 Jun 2009 02:10:53 -0700
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type; bh=vuvIj5/2TL8V8i3ix929x6pihjAmeaZKAkNFVQwFieU=; b=DP+5v2yoEeDHMiW15U3u7BJPZusqebk4xVtRU+Dr+p8PjaB+FkCcYFmOOdEPuka5uT DKl2U8cOVdFaE2daYepeu/IXR9m3L3U9H4IgcfemtHaDxUSgvmt+wQL5v14YT0Fc8VRc DR2+jtmZuMEuoQJH33gCuHPtVDuL3Wr//4qS8=
Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=Fn+ThLDaQsRaVWmZjlKVaFfnn161n8Czjhm/EBMhMszndqpsd1FgBm9d7uJNIwbp7d FzUwg2ztIgp2VAX1e0P/ZF7uzmjqW64j0bG+E2Hi8OuoHY5o4cTMmnNY8Ax+guXTahoe cjaWzETJvYZho5oKiqnAmAUOgdSmdKfQF934E=
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <940bcfd20906220132kb235dc0v45c3d618940411bb@xxxxxxxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <940bcfd20906220035v567a2d7cue0c627830a354d23@xxxxxxxxxxxxxx> <940bcfd20906220132kb235dc0v45c3d618940411bb@xxxxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Just in case, I do have HIGHPTE enabled. Attached is my .config

-dulloor

On Mon, Jun 22, 2009 at 4:32 AM, Dulloor <dulloor@xxxxxxxxx> wrote:
This bug message precedes the "soft lockup" bug message (mentioned below) - actual problem.

[ 1247.473865] BUG: unable to handle kernel paging request at c05dbd30
[ 1247.473877] IP: [<c0106e44>] xen_set_pte+0x74/0x90
[ 1247.473889] *pdpt = 000000006db54001
[ 1247.473895] Oops: 0003 [#1] SMP
[ 1247.473902] last sysfs file: /sys/devices/pci0000:00/0000:00:1f.3/modalias
[ 1247.473908] Modules linked in: <trimmed>
[ 1247.474113]
[ 1247.474118] Pid: 232, comm: kswapd0 Not tainted (2.6.30-rc6-tip #2) Precision WorkStation 390
[ 1247.474122] EIP: 0061:[<c0106e44>] EFLAGS: 00010202 CPU: 1
[ 1247.474127] EIP is at xen_set_pte+0x74/0x90
[ 1247.474131] EAX: 08f31063 EBX: 001322f8 ECX: 00000000 EDX: 00000000
[ 1247.474135] ESI: c05dbd30 EDI: c05dbd30 EBP: e2679d04 ESP: e2679cf0
[ 1247.474139]  DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0069
[ 1247.474143] Process kswapd0 (pid: 232, ti=e2678000 task=e2665940 task.ti=e2678000)
[ 1247.474147] Stack:
[ 1247.474150]  08f31063 00000000 08f31063 00000063 c05dbd30 e2679d34 c012c84a 00000000
[ 1247.474168]  00000000 08f31063 00000000 f57ff000 000000a0 00000014 00000007 404a2000
[ 1247.474188]  c8acdf20 e2679d48 c01054db 00000163 80000000 00000000 e2679dac c01c77a9
[ 1247.474210] Call Trace:
[ 1247.474214]  [<c012c84a>] ? kmap_atomic_prot+0xfa/0x130
[ 1247.474222]  [<c01054db>] ? xen_kmap_atomic_pte+0x2b/0x40
[ 1247.474229]  [<c01c77a9>] ? page_check_address+0xd9/0x1e0
[ 1247.474238]  [<c01b46b6>] ? shrink_page_list+0x466/0x640
[ 1247.474245]  [<c01d896d>] ? mem_cgroup_del_lru_list+0x4d/0x70
[ 1247.474252]  [<c01c7972>] ? page_referenced_one+0x52/0x120
[ 1247.474259]  [<c01b35e3>] ? isolate_pages_global+0x93/0x210
[ 1247.474266]  [<c01c7d41>] ? page_referenced+0xe1/0x120
[ 1247.474272]  [<c01b3ed6>] ? shrink_active_list+0xf6/0x390
[ 1247.474279]  [<c01afed5>] ? get_dirty_limits+0x15/0x2e0
[ 1247.474287]  [<c01b5254>] ? shrink_zone+0x204/0x300
[ 1247.474294]  [<c01b58aa>] ? kswapd+0x55a/0x5a0
[ 1247.474301]  [<c01b3550>] ? isolate_pages_global+0x0/0x210
[ 1247.474308]  [<c0159620>] ? autoremove_wake_function+0x0/0x40
[ 1247.474315]  [<c01b5350>] ? kswapd+0x0/0x5a0
[ 1247.474321]  [<c015926c>] ? kthread+0x4c/0x80
[ 1247.474327]  [<c0159220>] ? kthread+0x0/0x80
[ 1247.474334]  [<c010aa77>] ? kernel_thread_helper+0x7/0x10
[ 1247.474341] Code: 8b 1d 0c e3 5d c0 83 05 04 e3 5d c0 01 e8 05 e7 01 00 83 e8 01 0f 94 c0 0f b6 c0 01 d8 a3 0c e3 5d c0 8b 45 f0 89 46 04 8b 45 ec <89> 06 eb b9 bf e0 e2 5d c0 31 c0 b9 33 00 00 00 f3 ab c6 05 ac
[ 1247.474473] EIP: [<c0106e44>] xen_set_pte+0x74/0x90 SS:ESP 0069:e2679cf0
[ 1247.474482] CR2: 00000000c05dbd30
[ 1247.474488] ---[ end trace d4532c03c80c2027 ]---
[ 1247.474493] note: kswapd0[232] exited with preempt_count 1




On Mon, Jun 22, 2009 at 3:35 AM, Dulloor <dulloor@xxxxxxxxx> wrote:
I hit the following bug when compiling the source code. I am booted into pvops (xen-tip/next). If this is not a known issue, I will look more into it.

-dulloor

[ 6947.111255] Pid: 27629, comm: cc1 Tainted: G      D    (2.6.30-rc6-tip #2) Precision WorkStation 390
[ 6947.111255] EIP: 0061:[<c03e1ea5>] EFLAGS: 00000297 CPU: 1
[ 6947.111255] EIP is at _spin_lock+0x15/0x20
[ 6947.111255] EAX: e02ed980 EBX: e02ed980 ECX: e0b812c0 EDX: 0000f3f2
[ 6947.111255] ESI: e0b810b0 EDI: 40000000 EBP: d0217ec4 ESP: d0217ec4
[ 6947.111255]  DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0069
[ 6947.111255] CR0: 8005003b CR2: 4002b000 CR3: 08159000 CR4: 00002660
[ 6947.111255] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 6947.111255] DR6: ffff0ff0 DR7: 00000400
[ 6947.111255] Call Trace:
[ 6947.111255]  [<c01c7e9d>] anon_vma_unlink+0x1d/0x70
[ 6947.111255]  [<c01be7be>] free_pgtables+0x4e/0xb0
[ 6947.111255]  [<c01c53a8>] exit_mmap+0xc8/0x150
[ 6947.111255]  [<c0140356>] mmput+0x36/0xa0
[ 6947.111255]  [<c0145914>] exit_mm+0xd4/0xf0
[ 6947.111255]  [<c03e209b>] ? _spin_lock_irq+0xb/0x30
[ 6947.111255]  [<c0145a40>] do_exit+0x110/0x6e0
[ 6947.111255]  [<c01c5732>] ? do_munmap+0x1e2/0x270
[ 6947.111255]  [<c0146040>] do_group_exit+0x30/0x90
[ 6947.111255]  [<c01460af>] sys_exit_group+0xf/0x20
[ 6947.111255]  [<c010a089>] syscall_call+0x7/0xb
[ 7012.611255] BUG: soft lockup - CPU#1 stuck for 61s! [cc1:27629]



Attachment: config
Description: Binary data

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
<Prev in Thread] Current Thread [Next in Thread>