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Message-ID: <1356106865.4547.60.camel@marge.simpson.net> Date: Fri, 21 Dec 2012 17:21:05 +0100 From: Mike Galbraith <bitbucket@...ine.de> To: Thomas Gleixner <tglx@...utronix.de> Cc: LKML <linux-kernel@...r.kernel.org>, linux-rt-users <linux-rt-users@...r.kernel.org> Subject: Re: [ANNOUNCE] 3.6.11-rt24 (apocalypse release)c On Fri, 2012-12-21 at 14:50 +0100, Thomas Gleixner wrote: > Dear RT Folks, > > I'm pleased to announce the 3.6.11-rt24 release. 3.6.9-rt21, 3.6.10-rt22 > and 3.6.11-rt23 are not announced updates to the respective 3.6.y > stable releases without any RT changes > > Changes since 3.6.11-rt23: > > * Fix the scheduler bug really. Thanks to Mike for noticing the > issue. It turned out that there are a few more corner cases > hidden in that code. See the 3 separate patches in the quilt > queue for details. > > * Fix a livelock issue in the block layer. Thanks to Steve for > debugging it. > > Known issues: > > * There is still a possibility to get false positives from the NOHZ > idle softirq pending detector. It's rather complex to fix and I > have postponed it for a separate release. The warnings are > harmless and can be ignored for now. > > For those who are going to vanish today due to their firm believe in > the Mayan Apocalypse it's the last release ever and I can assure you > it's the best one as well. You just won't have enough time to verify > that. > > For all others this is just the last release of 2012. > > > The delta patch against 3.6.11-rt23 is appended below and can be found > here: > > http://www.kernel.org/pub/linux/kernel/projects/rt/3.6/incr/patch-3.6.11-rt23-rt24.patch.xz > > The RT patch against 3.6.11 can be found here: > > http://www.kernel.org/pub/linux/kernel/projects/rt/3.6/patch-3.6.11-rt24.patch.xz > > The split quilt queue is available at: > > http://www.kernel.org/pub/linux/kernel/projects/rt/3.6/patches-3.6.11-rt24.tar.xz > > > Thanks to all of you who have contributed with patches, bugreports, > testing ...! Special thanks to Steven for running the stable series! Just got this apocalypse day hiccup. [ 4577.585902] BUG: soft lockup - CPU#34 stuck for 23s! [bash:7313] [ 4577.585924] Modules linked in: nfsv3 nfs_acl nfs fscache lockd sunrpc autofs4 ipmi_devintf ipmi_si ipmi_msghandler edd af_packet cpufreq_conservative cpufreq_userspace cpufreq_powersave pcc_cpufreq mperf fuse loop dm_mod sg ipv6 coretemp kvm_intel hpwdt iTCO_wdt iTCO_vendor_support sr_mod cdrom kvm netxen_nic shpchp container i7core_edac hpilo joydev hid_generic rtc_cmos lpc_ich bnx2 pci_hotplug crc32c_intel serio_raw edac_core microcode mfd_core pcspkr acpi_power_meter button ext3 jbd mbcache usbhid hid radeon ttm drm_kms_helper drm i2c_algo_bit i2c_core uhci_hcd ehci_hcd sd_mod crc_t10dif usbcore thermal usb_common processor thermal_sys hwmon scsi_dh_rdac scsi_dh_alua scsi_dh_emc scsi_dh_hp_sw scsi_dh ata_generic ata_piix libata hpsa cciss scsi_mod [ 4577.585926] CPU 34 [ 4577.585926] Pid: 7313, comm: bash Not tainted 3.6.11-rt24-rt_trace #6 Hewlett-Packard ProLiant DL980 G7 [ 4577.585930] RIP: 0010:[<ffffffff81481fa2>] [<ffffffff81481fa2>] _raw_spin_lock+0x32/0x40 [ 4577.585931] RSP: 0018:ffff88026ce819b8 EFLAGS: 00000a87 [ 4577.585932] RAX: 000000000000c160 RBX: ffff88026ce81a38 RCX: ffff8802717ec140 [ 4577.585933] RDX: 00000000000066ee RSI: ffff88026ce81fd8 RDI: ffff880200444f40 [ 4577.585934] RBP: ffff88026ce819b8 R08: 0000000000000003 R09: 0000000000000007 [ 4577.585935] R10: ffff88026bf58000 R11: 0000000000000000 R12: ffff88027702c0c0 [ 4577.585936] R13: 0000000000000000 R14: ffffffff811a26ac R15: ffff88026ce81978 [ 4577.585937] FS: 00007f00c58d1700(0000) GS:ffff88027ea40000(0000) knlGS:0000000000000000 [ 4577.585938] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4577.585939] CR2: 00000000006be8a0 CR3: 0000000262413000 CR4: 00000000000007e0 [ 4577.585941] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4577.585942] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 4577.585943] Process bash (pid: 7313, threadinfo ffff88026ce80000, task ffff8802717ec140) [ 4577.585944] Stack: [ 4577.585953] ffff88026ce81a98 ffffffff81481366 0000000000001000 0000000000113800 [ 4577.585957] ffff88027702c0c0 ffff8802690cd520 ffff88026ce81a18 ffffffff811a3d06 [ 4577.585961] 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 4577.585961] Call Trace: [ 4577.585964] [<ffffffff81481366>] rt_spin_lock_slowlock+0x36/0x320 [ 4577.585967] [<ffffffff811a3d06>] ? __getblk+0x26/0x50 [ 4577.585970] [<ffffffff81481c97>] rt_spin_lock+0x27/0x30 [ 4577.585973] [<ffffffff8112583d>] activate_page+0x8d/0x130 [ 4577.585976] [<ffffffff8112592b>] mark_page_accessed+0x4b/0x60 [ 4577.585978] [<ffffffff811a2a88>] __find_get_block+0xc8/0x210 [ 4577.585981] [<ffffffff811a3d06>] __getblk+0x26/0x50 [ 4577.585988] [<ffffffffa034253c>] __ext3_get_inode_loc+0x10c/0x390 [ext3] [ 4577.585995] [<ffffffffa0343610>] ext3_iget+0x90/0x4d0 [ext3] [ 4577.586002] [<ffffffffa034b338>] ext3_lookup+0xa8/0x120 [ext3] [ 4577.586005] [<ffffffff8117a365>] lookup_real+0x25/0x60 [ 4577.586007] [<ffffffff8117aa09>] __lookup_hash+0x39/0x50 [ 4577.586010] [<ffffffff8117ee85>] path_lookupat+0x7b5/0x870 [ 4577.586013] [<ffffffff8108057b>] ? migrate_enable+0xfb/0x230 [ 4577.586016] [<ffffffff8117ef75>] do_path_lookup+0x35/0xd0 [ 4577.586018] [<ffffffff8117fc13>] user_path_at_empty+0x83/0xb0 [ 4577.586021] [<ffffffff81077aaf>] ? lg_local_unlock+0x1f/0x30 [ 4577.586024] [<ffffffff8118f881>] ? mntput_no_expire+0x51/0x1a0 [ 4577.586026] [<ffffffff811742b5>] ? cp_new_stat+0x105/0x120 [ 4577.586029] [<ffffffff8117fc51>] user_path_at+0x11/0x20 [ 4577.586031] [<ffffffff8117452b>] vfs_fstatat+0x4b/0x90 [ 4577.586034] [<ffffffff8117469b>] vfs_stat+0x1b/0x20 [ 4577.586036] [<ffffffff811746c4>] sys_newstat+0x24/0x50 [ 4577.586040] [<ffffffff81489869>] system_call_fastpath+0x16/0x1b [ 4577.586053] Code: 66 90 65 48 8b 04 25 48 99 00 00 83 80 44 e0 ff ff 01 b8 00 00 01 00 f0 0f c1 07 89 c2 c1 ea 10 66 39 d0 74 0e 0f 1f 40 00 f3 90 <0f> b7 07 66 39 c2 75 f6 c9 c3 0f 1f 40 00 55 48 89 e5 66 66 66 [ 4578.002993] BUG: soft lockup - CPU#43 stuck for 22s! [syslog-ng:4245] [ 4578.003041] Modules linked in: nfsv3 nfs_acl nfs fscache lockd sunrpc autofs4 ipmi_devintf ipmi_si ipmi_msghandler edd af_packet cpufreq_conservative cpufreq_userspace cpufreq_powersave pcc_cpufreq mperf fuse loop dm_mod sg ipv6 coretemp kvm_intel hpwdt iTCO_wdt iTCO_vendor_support sr_mod cdrom kvm netxen_nic shpchp container i7core_edac hpilo joydev hid_generic rtc_cmos lpc_ich bnx2 pci_hotplug crc32c_intel serio_raw edac_core microcode mfd_core pcspkr acpi_power_meter button ext3 jbd mbcache usbhid hid radeon ttm drm_kms_helper drm i2c_algo_bit i2c_core uhci_hcd ehci_hcd sd_mod crc_t10dif usbcore thermal usb_common processor thermal_sys hwmon scsi_dh_rdac scsi_dh_alua scsi_dh_emc scsi_dh_hp_sw scsi_dh ata_generic ata_piix libata hpsa cciss scsi_mod [ 4578.003045] CPU 43 [ 4578.003046] Pid: 4245, comm: syslog-ng Not tainted 3.6.11-rt24-rt_trace #6 Hewlett-Packard ProLiant DL980 G7 [ 4578.003059] RIP: 0010:[<ffffffff81481fa2>] [<ffffffff81481fa2>] _raw_spin_lock+0x32/0x40 [ 4578.003060] RSP: 0018:ffff880273ac9ae8 EFLAGS: 00000297 [ 4578.003061] RAX: 0000000000000001 RBX: ffff880273ac8000 RCX: ffff880271e66580 [ 4578.003062] RDX: 0000000000000000 RSI: ffff880273ac9fd8 RDI: ffff880200564f40 [ 4578.003063] RBP: ffff880273ac9ae8 R08: ffff880273ac9b58 R09: 0000000000001000 [ 4578.003064] R10: 00000000fffff1d9 R11: 0000000000000080 R12: ffff880271e66580 [ 4578.003065] R13: 0000000000000002 R14: ffffffff8106e347 R15: ffff880273ac9a58 [ 4578.003067] FS: 00007f892a42c700(0000) GS:ffff88027eb60000(0000) knlGS:0000000000000000 [ 4578.003068] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4578.003069] CR2: ffffffffff600400 CR3: 00000002673f4000 CR4: 00000000000007e0 [ 4578.003070] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4578.003071] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 4578.003073] Process syslog-ng (pid: 4245, threadinfo ffff880273ac8000, task ffff880271e66580) [ 4578.003073] Stack: [ 4578.003078] ffff880273ac9bc8 ffffffff81481366 ffff8802709f8c78 ffff8802709f8ed0 [ 4578.003083] fffffdc06b578800 0000000000001000 ffffffffa03446b0 ffffea000764af88 [ 4578.003087] 00000240000001d9 ffff8802702c7520 ffff8802022c0c10 ffff88021cc47240 [ 4578.003088] Call Trace: [ 4578.003094] [<ffffffff81481366>] rt_spin_lock_slowlock+0x36/0x320 [ 4578.003109] [<ffffffffa03446b0>] ? ext3_get_blocks_handle+0x760/0x760 [ext3] [ 4578.003112] [<ffffffff81481c97>] rt_spin_lock+0x27/0x30 [ 4578.003119] [<ffffffff8112583d>] activate_page+0x8d/0x130 [ 4578.003122] [<ffffffff8112592b>] mark_page_accessed+0x4b/0x60 [ 4578.003132] [<ffffffff81115756>] generic_perform_write+0xf6/0x1e0 [ 4578.003138] [<ffffffff81137acb>] ? bdi_wakeup_thread_delayed+0x3b/0x50 [ 4578.003142] [<ffffffff811158a5>] generic_file_buffered_write+0x65/0xa0 [ 4578.003147] [<ffffffff81118356>] __generic_file_aio_write+0x1b6/0x390 [ 4578.003157] [<ffffffff81165973>] ? kmem_cache_free+0x1b3/0x310 [ 4578.003159] [<ffffffff811185a7>] generic_file_aio_write+0x77/0xe0 [ 4578.003165] [<ffffffff8116edc9>] do_sync_write+0xa9/0xf0 [ 4578.003168] [<ffffffff8116f3cb>] vfs_write+0xcb/0x130 [ 4578.003170] [<ffffffff8116f525>] sys_write+0x55/0x90 [ 4578.003175] [<ffffffff81489869>] system_call_fastpath+0x16/0x1b [ 4578.003190] Code: 66 90 65 48 8b 04 25 48 99 00 00 83 80 44 e0 ff ff 01 b8 00 00 01 00 f0 0f c1 07 89 c2 c1 ea 10 66 39 d0 74 0e 0f 1f 40 00 f3 90 <0f> b7 07 66 39 c2 75 f6 c9 c3 0f 1f 40 00 55 48 89 e5 66 66 66 repeat.... -- 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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