Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753785AbXL0Ryu (ORCPT ); Thu, 27 Dec 2007 12:54:50 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751946AbXL0Ryl (ORCPT ); Thu, 27 Dec 2007 12:54:41 -0500 Received: from turing-police.cc.vt.edu ([128.173.14.107]:57073 "EHLO turing-police.cc.vt.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751432AbXL0Ryk (ORCPT ); Thu, 27 Dec 2007 12:54:40 -0500 X-Mailer: exmh version 2.7.2 01/07/2005 with nmh-1.2 To: Andrew Morton Cc: linux-kernel@vger.kernel.org Subject: 2.6.24-rc6-mm1 - crash in tick_sched_timer/update_process_times In-Reply-To: Your message of "Sat, 22 Dec 2007 23:30:56 PST." <20071222233056.d652743e.akpm@linux-foundation.org> From: Valdis.Kletnieks@vt.edu References: <20071222233056.d652743e.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1198778074_3037P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Thu, 27 Dec 2007 12:54:34 -0500 Message-ID: <18487.1198778074@turing-police.cc.vt.edu> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4524 Lines: 79 --==_Exmh_1198778074_3037P Content-Type: text/plain; charset=us-ascii On Sat, 22 Dec 2007 23:30:56 PST, Andrew Morton said: > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.24-rc6/2.6.24-rc6-mm1/ I seem to be on a roll here... :) X86_64 kernel, Dell Latitude D820, Core2 T7200 processor... (Yes, I know it's tainted. If I *have* to, I'll try to get an untainted one, which will be a pain - the oss 'nv' driver is a tad busticated on my box at the moment). Took me a bunch of hours to find a way to repeat this one, but it seems pretty consistent - I exit an 'Eterm' process and ka-blam. First guess I have is that we hit a race and the timer popped right in the middle of a process exiting and we try to update process times on an already-defunct process table entry? This ring any bells or brown-paper-bag D'Oh!s before I go bisecting? [15345.901919] Unable to handle kernel paging request at 000000af008c00cd RIP: [15345.901934] [] scheduler_tick+0xdb/0x1c4 [15345.901952] PGD 0 [15345.901959] Oops: 0000 [1] PREEMPT SMP [15345.901972] last sysfs file: /sys/devices/platform/coretemp.1/temp1_input [15345.901978] CPU 1 [15345.901984] Modules linked in: irnet ppp_generic slhc irtty_sir sir_dev ircomm_tty ircomm irda crc_ccitt coretemp nf_conntrack_ftp xt_pkttype ipt_REJECT ipt_osf nf_conntrack_ipv4 xt_ipisforif ipt_recent ipt_LOG xt_u32 iptable_filter ip_tables xt_tcpudp nf_conntrack_ipv6 xt_state nf_conntrack ip6t_LOG xt_limit ip6table_filter ip6_tables x_tables sha256_generic aes_generic acpi_cpufreq tpm_tis pcmcia gspca(U) iwl3945 firmware_class iTCO_wdt yenta_socket compat_ioctl32 ohci1394 rsrc_nonstatic iTCO_vendor_support mac80211 ieee1394 pcmcia_core nvidia(P)(U) watchdog_core battery videodev ac watchdog_dev v4l2_common snd_hda_intel v4l1_compat thermal power_supply cfg80211 button intel_agp processor rtc [15345.902170] Pid: 0, comm: Eterm Tainted: P 2.6.24-rc6-mm1 #4 [15345.902176] RIP: 0010:[] [] scheduler_tick+0xdb/0x1c4 [15345.902189] RSP: 0018:ffff81007f8a3eb8 EFLAGS: 00010083 [15345.902195] RAX: 000000af008c005d RBX: 00000df4fefac7d9 RCX: 0000000000000004 [15345.902202] RDX: 0000000000000004 RSI: ffff81007e405600 RDI: ffff810001011180 [15345.902208] RBP: ffff81007f8a3ed8 R08: 0000000000000010 R09: 0000000000000001 [15345.902214] R10: ffff8100808f4000 R11: ffffffff8071d180 R12: ffff810001011180 [15345.902219] R13: 0000000000000001 R14: ffff81007e405600 R15: 0000000000000001 [15345.902226] FS: 0000000000000000(0000) GS:ffff81007f86f9c0(0063) knlGS:00000000f7dab6c0 [15345.902233] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b [15345.902238] CR2: 000000af008c00cd CR3: 00000000766c8000 CR4: 00000000000006e0 [15345.902244] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [15345.902249] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [15345.902256] Process Eterm (pid: 0, threadinfo 4394404dffffffff, task ffff81007e405600) [15345.902261] Stack: 0000000000000001 0000000000000000 ffff81007e405600 00000c71d7bbe7da [15345.902279] ffff81007f8a3f08 ffffffff8023f913 ffff81007f8a3f08 ffff81000100e060 [15345.902293] ffff810077161b08 ffff81000100df60 ffff81007f8a3f38 ffffffff80251b7d [15345.902306] Call Trace: [15345.902312] [] update_process_times+0x4a/0x5b [15345.902334] [] tick_sched_timer+0x8e/0xcb [15345.902345] [] hrtimer_interrupt+0x111/0x1a1 [15345.902357] [] ia32_setup_frame+0xb5/0x1b7 [15345.902367] [] smp_apic_timer_interrupt+0x86/0xa6 [15345.902377] [] apic_timer_interrupt+0x66/0x70 [15345.902383] [15345.902389] [15345.902390] Code: ff 50 70 4c 89 e7 e8 4a 2d 2f 00 44 89 ef e8 85 9f ff ff 41 [15345.902445] RIP [] scheduler_tick+0xdb/0x1c4 [15345.902455] RSP [15345.902461] CR2: 000000af008c00cd --==_Exmh_1198778074_3037P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (GNU/Linux) Comment: Exmh version 2.5 07/13/2001 iD8DBQFHc+bacC3lWbTT17ARArA7AKCcRSIbJ5lsMF1GG1rzDLqout/VfwCeIJcA 7EnKw/rIlG2Uth1ow5CS/hs= =8ohq -----END PGP SIGNATURE----- --==_Exmh_1198778074_3037P-- -- 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/