Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753605AbYFJGVP (ORCPT ); Tue, 10 Jun 2008 02:21:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751088AbYFJGUy (ORCPT ); Tue, 10 Jun 2008 02:20:54 -0400 Received: from mu-out-0910.google.com ([209.85.134.184]:39096 "EHLO mu-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750946AbYFJGUx (ORCPT ); Tue, 10 Jun 2008 02:20:53 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:x-enigmail-version:content-type :content-transfer-encoding; b=u8u5ty3LGxN6PLujOE4AN9sLvRjSdBeDnYbM1KbK3yoyZs3E0D6hXXqapyVezNAFig abB4B5EZNBnmjj00UPZO5I/jVI9reTjpsm0ynT0li/ffKh6V8lgtzqioKaeuTwTeZkyo wZ1wSifkQM9qMDl9DZqUrKkVCJMF6EC+slh+A= Message-ID: <484E1D03.7050400@gmail.com> Date: Tue, 10 Jun 2008 08:19:47 +0200 From: Jiri Slaby User-Agent: Thunderbird 2.0.0.12 (X11/20071114) MIME-Version: 1.0 To: Andrew Morton CC: linux-kernel@vger.kernel.org, linux-mm@kvack.org, netdev@vger.kernel.org Subject: Re: sock lockup -> process in D state [Was: 2.6.26-rc5-mm1] References: <20080609053908.8021a635.akpm@linux-foundation.org> <484DAF9D.5080702@gmail.com> <20080609160154.218f3e69.akpm@linux-foundation.org> In-Reply-To: <20080609160154.218f3e69.akpm@linux-foundation.org> X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4594 Lines: 95 On 06/10/2008 01:01 AM, Andrew Morton wrote: > On Tue, 10 Jun 2008 00:33:01 +0200 > Jiri Slaby wrote: > >> On 06/09/2008 02:39 PM, Andrew Morton wrote: >>> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.26-rc5/2.6.26-rc5-mm1/ >> I don't know how to reproduce it so far, but posting anyway: >> >> httpd2-prefor D 00000000ffffffff 0 3697 2811 >> ffff810055bd7198 0000000000000046 ffff810055bd7160 ffff810055bd715c >> ffffffff80728000 ffff810063896700 ffff81007d093380 ffff810063896980 >> 00000001781e1700 00000001005585a6 ffff810063896980 0000000000000600 >> Call Trace: >> [] lock_sock_nested+0x8d/0xd0 [...] > > Looks like it tried to go BUG then deadlocked. Didn't it print BUG > stuff into the logs? > > And I'd guess that you hit the unlock_page() BUG (Subject: Re: > 2.6.26-rc5-mm1: kernel BUG at mm/filemap.c:575!). Yeah, you're right. I didn't notice it earlier, since 2 unsuccessful suspends tainted logs with task stacks. This is the first Oops. The same with httpd is in the logs too. ------------[ cut here ]------------ kernel BUG at /home/l/latest/xxx/mm/filemap.c:575! invalid opcode: 0000 [1] SMP last sysfs file: /sys/devices/virtual/net/tun0/statistics/collisions CPU 0 Modules linked in: usbhid hid ohci1394 floppy ff_memless ieee1394 rtc_cmos evdev [last unloaded: freq_table] Pid: 27195, comm: find Not tainted 2.6.26-rc5-mm1_64 #417 RIP: 0010:[] [] unlock_page+0x17/0x40 RSP: 0018:ffff810059851618 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffe20000679b70 RCX: 0000000000000035 RDX: 0000000000000000 RSI: ffffe20000679b70 RDI: ffffe20000679b70 RBP: ffff810059851628 R08: db80000000000000 R09: e000000000000000 R10: ffffe20000a494c8 R11: ffff81002f05fa50 R12: ffffe20000679b98 R13: ffff810059851898 R14: ffff8100598519b8 R15: 0000000000000000 FS: 00007fa7478a56f0(0000) GS:ffffffff806d2300(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f62ec2fe000 CR3: 00000000591ac000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process find (pid: 27195, threadinfo ffff810059850000, task ffff810078346700) Stack: ffff810059851628 ffffe20000679b70 ffff810059851768 ffffffff8028386d ffff810059851728 ffff8100598516e8 ffff810059851658 0000000000000000 0000001400000000 0000000000000002 0000000000000002 0000000000000001 Call Trace: [] shrink_page_list+0x2fd/0x720 [] ? isolate_pages_global+0x1c3/0x270 [] shrink_list+0x240/0x5e0 [] shrink_zone+0x253/0x330 [] try_to_free_pages+0x251/0x3e0 [] ? isolate_pages_global+0x0/0x270 [] __alloc_pages_internal+0x20f/0x4e0 [] __slab_alloc+0x6d4/0x6f0 [] ? ext3_alloc_inode+0x15/0x40 [] kmem_cache_alloc+0x95/0xa0 [] ext3_alloc_inode+0x15/0x40 [] alloc_inode+0x1c/0x1b0 [] iget_locked+0x70/0x170 [] ext3_iget+0x17/0x3f0 [] ext3_lookup+0xa8/0x100 [] ? d_alloc+0x123/0x1b0 [] do_lookup+0x1c6/0x220 [] __link_path_walk+0x37b/0x1030 [] ? check_object+0x265/0x270 [] ? init_object+0x50/0x90 [] path_walk+0x66/0xd0 [] do_path_lookup+0xa2/0x240 [] __user_walk_fd+0x4c/0x80 [] vfs_lstat_fd+0x2b/0x70 [] ? cp_new_stat+0xe3/0xf0 [] ? mntput_no_expire+0x2a/0x190 [] sys_newfstatat+0x5c/0x80 [] ? fput+0x1d/0x30 [] ? filp_close+0x5b/0x90 [] ? sys_close+0xad/0x100 [] system_call_after_swapgs+0x7b/0x80 Code: 1f 44 00 00 eb c5 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 53 48 89 fb 48 83 ec 08 f0 0f ba 37 00 19 c0 85 c0 75 04 <0f> 0b eb fe e8 f0 ee ff ff 48 89 de 48 89 c7 31 d2 e8 c3 60 fd RIP [] unlock_page+0x17/0x40 RSP ---[ end trace 2a52a1962aabcbb2 ]--- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/