From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx158.postini.com [74.125.245.158]) by kanga.kvack.org (Postfix) with SMTP id 406726B002B for ; Wed, 26 Dec 2012 02:13:41 -0500 (EST) Date: Wed, 26 Dec 2012 08:13:38 +0100 From: Borislav Petkov Subject: Re: [3.8-rc1+] BUG: unable to handle kernel NULL pointer dereference, wait_iff_congested+0x45/0xdd Message-ID: <20121226071338.GA11555@liondog.tnic> References: <27934635.301401356500288241.JavaMail.weblogic@epml05> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: "devendra.aaru" Cc: jongman.heo@samsung.com, linux-kernel@vger.kernel.org, linux-mm + linux-mm. There's that kswapd deal again. On Wed, Dec 26, 2012 at 11:12:45AM +0530, devendra.aaru wrote: > Hello, > > On Wed, Dec 26, 2012 at 11:08 AM, Jongman Heo wrote: > > > > Hi, > > > > During SVN checkout (means heavy I/O), I hit this kernel BUG with current linus git (637704cb : Merge branch 'i2c-embedded/for-next'), in my VMWare Linux guest. > > > i can too with the make -j144 on kernel source code, attached the .config. > > > [ 9141.015123] BUG: unable to handle kernel NULL pointer dereference at 00000280 > > [ 9141.017870] IP: [] wait_iff_congested+0x45/0xdd > > [ 9141.034799] *pde = 00000000 > > [ 9141.034803] Oops: 0000 [#1] SMP > > [ 9141.044282] Modules linked in: vmwgfx ttm drm > > [ 9141.044331] Pid: 42, comm: kswapd0 Not tainted 3.8.0-rc1+ #120 VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform > > [ 9141.044334] EIP: 0060:[] EFLAGS: 00010202 CPU: 3 > > [ 9141.044342] EIP is at wait_iff_congested+0x45/0xdd > > [ 9141.044343] EAX: 00000001 EBX: 00000000 ECX: 00000000 EDX: 00000000 > > [ 9141.044345] ESI: 0000001e EDI: f633fec0 EBP: f633fecc ESP: f633fea8 > > [ 9141.044347] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 > > [ 9141.044348] CR0: 8005003b CR2: 00000280 CR3: 33ab7000 CR4: 000007d0 > > [ 9141.045817] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 > > [ 9141.045834] DR6: ffff0ff0 DR7: 00000400 > > [ 9141.045836] Process kswapd0 (pid: 42, ti=f633e000 task=f6331920 task.ti=f633e000) > > [ 9141.045838] Stack: > > [ 9141.045839] 002889e6 00000000 f6331920 c04462a2 f633feb8 f633feb8 c0beba54 c0bead00 > > [ 9141.045844] 00000003 f633ff68 c04b3ffb 00000002 00000000 000086d1 f6331920 f633ff58 > > [ 9141.045849] 00000000 f6331920 00037b92 00000000 00000045 00000000 00000038 00000001 > > [ 9141.045854] Call Trace: > > [ 9141.045934] [] ? remove_wait_queue+0x27/0x27 > > [ 9141.045939] [] kswapd+0x5ef/0x705 > > [ 9141.045942] [] ? remove_wait_queue+0x27/0x27 > > [ 9141.045945] [] kthread+0x6b/0x70 > > [ 9141.045947] [] ? shrink_lruvec+0x492/0x492 > > [ 9141.083149] [] ret_from_kernel_thread+0x1b/0x28 > > [ 9141.083166] [] ? kthread_freezable_should_stop+0x36/0x36 > > [ 9141.083169] Code: 89 45 dc 31 c0 f3 ab 64 a1 58 66 c7 c0 89 45 e4 8d 45 ec 89 45 ec 89 45 f0 8b 04 95 24 2b cf c0 c7 45 e8 a2 62 44 c0 85 c0 74 0a <8b> 83 80 02 00 00 a8 04 75 1b e8 e9 6f 44 00 a1 40 9a b8 c0 8b > > [ 9141.089753] EIP: [] wait_iff_congested+0x45/0xdd SS:ESP 0068:f633fea8 > > [ 9141.089764] CR2: 0000000000000280 > > [ 9141.090296] ---[ end trace 58a34900f079b57e ]--- -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. -- -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org