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Message-ID: <20121129122708.GA6365@pomac.netswarm.net> Date: Thu, 29 Nov 2012 13:27:08 +0100 From: Ian Kumlien <pomac@...or.com> To: Borislav Petkov <bp@...en8.de>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: [BUG] NULL pointer dereference in 3.7-rc7 (syscall_trace_enter) On Thu, Nov 29, 2012 at 10:26:21AM +0100, Borislav Petkov wrote: > On Thu, Nov 29, 2012 at 12:20:02AM +0100, Ian Kumlien wrote: > > Hi, > > > > Due to unexplained dns problems, I'll be using google plus to post the > > photo of the bug output. > > > > https://plus.google.com/photos/110698868656495230656/albums/5816005854482735041 > > > > I'm sorry but my knowledge is limited and current caffeine level is low, > > so I'm offloading to someone who has these things handled ;) > > Hmm, this looks strange, were you doing any system tracing or similar? I think that chrome does traceing all the time as a part of it's sandbox - this is most likely chrome monitoring flash... > How reproducible is this? If you can reliably reproduce it, can you > make a much more readable screen photo of it so that one can read all > register values and the "Code:" section in the backtrace is complete and > also readable? I can't say, it's the first kernel bug i have in quite a while - I guess time will tell. It seems like google plus worsened the image quality and i had another picture to go by as well, so i peiced them together in to the following information - Now if i just had the energy to disable the wraparound in vim.... --- BUG: unable to handle kernel NULL pointer dereference at 0000000000000063 IP: [<ffffffff8100b64b>] syscall_trace_enter+0x15e/0x191 PGD 0 Oops: 0000 [#1] PREEMPT SMP Modules linked in: snd_usb_audio snd_usbmidi_lib nouveau mxm_wmi wmi i2x_algo_bit ttm drm_kms_helper drm CPU 0 Pid: 24590, comm: chrome Not tainted 3.7.0-rc7 #50 System manufacturer System Product Name/A8N32-SLI-Deluxe RIP: 0010:[<ffffffff8100b64b>] [<ffffffff8100b64b>] syscall_trace_enter+0x15e/0x191 RSP: 0018:ffff8800058e3f38 EFLAGS: 00010206 RAX: 0000000000000081 RBX: ffff8800058e3f58 RCX: 0000000000000063 RDX: 00007fe1f2fbde18 RSI: 00000000000000ca RDI: 00007fe1f2fbde18 RBP: 0000000000000000 R08: 0000000000000001 R09: 00007fe23f9fcb10 R10: 00007fe23f9fcb10 R11: 0000000000000206 R12: 0000000000000032 R13: 00007fe23f9fd9c0 R14: 00007fe25d743710 R15: 0000000000000007 FS: 00007fe23f9fd700(0000) GS:ffff88013fc00000(0000) knlGS:00000000f5c88740 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000063 CR3: 0000000083a84000 CR4: 00000000000007f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process chrome (pid: 24590, threadinfo ffff8800058e2000, task ffff88003dacd3b0) Stack: 00007fe1f2fbde10 0000000000000001 0000000000000032 ffffffff8160646c 0000000000000007 00007fe25d743710 00007fe23f9fd9c0 0000000000000032 0000000000000001 00007fe1f2fbde10 0000000000000206 00007fe23f9fcb10 Call Trace: [<ffffffff8160646c>] ? tracesys+0x7e/0xe2 Code: 53 28 48 85 ff 74 29 83 3f 00 75 24 eb 37 65 48 8b 0c 25 80 b8 00 00 48 8b 89 c0 04 00 00 4c 8b 4b 38 48 8b 53 70 48 85 c9 74 08 <83> 39 00 74 1f 48 83 ca ff 48 85 ed 75 04 48 8b 53 78 5b 5d 48 RIP [<ffffffff8100b64b>] syscall_trace_eneter+0x15e/0x191 RSP <ffff8800058e3f38> CR2: 0000000000000063 --- > Thanks. > > -- > Regards/Gruss, > Boris. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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