Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756516Ab1DANmN (ORCPT ); Fri, 1 Apr 2011 09:42:13 -0400 Received: from 0122700014.0.fullrate.dk ([95.166.99.235]:59974 "EHLO kernel.dk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756211Ab1DANmJ (ORCPT ); Fri, 1 Apr 2011 09:42:09 -0400 Message-ID: <4D95D630.4010806@kernel.dk> Date: Fri, 01 Apr 2011 15:42:08 +0200 From: Jens Axboe MIME-Version: 1.0 To: Dave Jones , Linux Kernel Subject: Re: GPF in __call_for_each_cic References: <20110331223034.GA31371@redhat.com> In-Reply-To: <20110331223034.GA31371@redhat.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3565 Lines: 56 On 2011-04-01 00:30, Dave Jones wrote: > Just hit this on current git head. > > Dave > > general protection fault: 0000 [#1] SMP > last sysfs file: /sys/devices/system/cpu/cpu1/cache/index2/shared_cpu_map > CPU 0 > Modules linked in: cmtp kernelcapi can_bcm rfcomm sctp libcrc32c hidp bnep af_802154 ipx p8022 p8023 rds phonet decnet pppoe pppox ppp_generic slhc appletalk psnap llc af_key can rose ax25 irda crc_ccitt atm tun tcp_lp nfs fscache fuse nfsd lockd nfs_acl auth_rpcgss sunrpc cpufreq_ondemand acpi_cpufreq freq_table mperf ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables ipv6 uinput arc4 iwlagn mac80211 snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_intel snd_usb_audio snd_hda_codec btusb bluetooth snd_seq uvcvideo snd_pcm dell_wmi cfg80211 sparse_keymap snd_hwdep zaurus snd_usbmidi_lib videodev dell_laptop snd_rawmidi snd_timer cdc_ether dcdbas snd_seq_device usbnet microcode v4l2_compat_ioctl32 mii cdc_acm snd cdc_wdm iTCO_wdt joydev tg3 rfkill i2c_i801 pcspkr iTCO_vendor_support soundcore snd_page_alloc wmi i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan] > > Pid: 14365, comm: trinity Not tainted 2.6.38-09065-g89078d5-dirty #6 Dell Inc. Adamo 13 /0N70T0 > RIP: 0010:[] [] __call_for_each_cic+0x32/0x51 > RSP: 0018:ffff880007c05e28 EFLAGS: 00010202 > RAX: 0000000000000001 RBX: ffff88010e48abd0 RCX: 0000042c0d869707 > RDX: 0000000000000246 RSI: ffffffff81a268f0 RDI: 0000000000000246 > RBP: ffff880007c05e48 R08: 0000000000000286 R09: 0000000000000001 > R10: ffff88010e48abf8 R11: ffffffff8125893b R12: ffffffff8125708a > R13: 6b6b6b6b6b6b6b6b R14: ffff880007c05c08 R15: 0000000000000001 > FS: 0000000000000000(0000) GS:ffff88013fa00000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > CR2: 000000000157ea88 CR3: 0000000001a03000 CR4: 00000000000406f0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Process trinity (pid: 14365, threadinfo ffff880007c04000, task ffff88007c99a3b0) > Stack: > ffff880007c05c08 ffff88010e48abd0 ffff88007c99a3b0 ffff88007c99a980 > ffff880007c05e58 ffffffff8125706f ffff880007c05e78 ffffffff8124c70c > ffff880007c05e78 ffff88010e48abd0 ffff880007c05ea8 ffffffff8124c798 > Call Trace: > [] cfq_free_io_context+0x15/0x17 > [] put_io_context+0x44/0x61 > [] exit_io_context+0x6f/0x77 > [] do_exit+0x759/0x780 > [] ? schedule+0x6d9/0x70b > [] do_group_exit+0x88/0xb6 > [] sys_exit_group+0x17/0x1b > [] system_call_fastpath+0x16/0x1b > Code: 54 53 48 83 ec 08 0f 1f 44 00 00 4c 8b af 80 00 00 00 48 89 fb 49 89 f4 e8 e3 db e1 ff 85 c0 74 05 e8 ac ff ff ff 4d 85 ed 74 17 > 8b 45 00 49 8d 75 b0 48 89 df 0f 18 08 41 ff d4 4d 8b 6d 00 > RIP [] __call_for_each_cic+0x32/0x51 > RSP > ---[ end trace 044e02f5767b491a ]--- > Fixing recursive fault but reboot is needed! This looks like the ellusive cic bug that has never been fixed and strikes once in a blue moon. What was the system doing? -- Jens Axboe -- 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/