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Date: Fri, 15 Apr 2011 04:06:25 +0200 From: Michael Guntsche <mike@...loops.com> To: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Cc: Linus Torvalds <torvalds@...ux-foundation.org>, Jens Axboe <jaxboe@...ionio.com> Subject: 2.6.39 Block layer regression was [Bug] Boot hangs with 2.6.39-rc[123]] Good morning again, > Hi list, > > Apparently all the 2.6.39-rc kernels up to current git HEAD hang on my setup > here during boot. They survive the initramfs step, but after or during the root > file system mount it just hangs. > This is a software RAID-5->LVM setup. The machine itself boots without > any problems with a 2.6.38 kernel. > > The hardware: > processor : 0 > vendor_id : GenuineIntel > cpu family : 15 > model : 1 > model name : Intel(R) Pentium(R) 4 CPU 1.70GHz > stepping : 2 > cpu MHz : 1699.523 > cache size : 256 KB > fdiv_bug : no > hlt_bug : no > f00f_bug : no > coma_bug : no > fpu : yes > fpu_exception : yes > cpuid level : 2 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pebs bts > bogomips : 3399.04 > clflush size : 64 > cache_alignment : 128 > address sizes : 36 bits physical, 32 bits virtual > power management: > <boot messages removed> > md0: detected capacity change from 0 to 57475072 > md0: > md: md1 stopped. > md: bind<sdd2> > md: bind<sde2> > md: bind<sdf2> > md: bind<sda2> > md: bind<sdc2> > md/raid:md1: device sdc2 operational as raid disk 0 > md/raid:md1: device sda2 operational as raid disk 4 > md/raid:md1: device sdf2 operational as raid disk 3 > md/raid:md1: device sde2 operational as raid disk 2 > md/raid:md1: device sdd2 operational as raid disk 1 > md/raid:md1: allocated 5258kB > md/raid:md1: raid level 5 active with 5 out of 5 devices, algorithm 2 > created bitmap (4 pages) for device md1 > md1: bitmap initialized from disk: read 1/1 pages, set 0 bits > md1: detected capacity change from 0 to 2000189128704 > md1: unknown partition table > device fsid d64bac2f4cf259ba-326da6041632dd9c devid 1 transid 557 /dev/sdb1 > end_request: I/O error, dev fd0, sector 0 > EXT3-fs: barriers not enabled > kjournald starting. Commit interval 5 seconds > EXT3-fs (dm-0): mounted filesystem with writeback data mode > udev[1333]: starting version 167 > input: Power Button as /devices/LNXSYSTM:00/device:00/PNP0C0C:00/input/input2 > ACPI: Power Button [PWRB] > input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input3 > ACPI: Power Button [PWRF] > parport_pc 00:08: reported by Plug and Play ACPI > parport0: PC-style at 0x378, irq 7 [PCSPP,TRISTATE,EPP] > intel_rng: FWH not detected > Linux agpgart interface v0.103 > i801_smbus 0000:00:1f.3: PCI INT B -> GSI 17 (level, low) -> IRQ 17 > agpgart-intel 0000:00:00.0: Intel 865 Chipset > agpgart-intel 0000:00:00.0: AGP aperture is 64M @ 0xf8000000 > Intel ICH 0000:00:1f.5: PCI INT B -> GSI 17 (level, low) -> IRQ 17 > intel8x0: white list rate for 1043:80f3 is 48000 > > Here the mount hangs. Apparently after root was mounted successfully. > > SysRq : Show Blocked State > task PC stack pid father > mount D f4cfde00 0 1765 1745 0x00000000 > f4c23dd0 00000086 f44aa800 f4cfde00 f44aa500 0000004d f4c23d74 c11a35f9 > f4c23d80 f4c23dd0 f4431760 8416416f 00000004 f4431760 00000041 ffffffff > 00000001 00000008 00100800 f4431760 00000008 00000000 e8da47f8 00000000 > Call Trace: > [<c11a35f9>] ? dm_request+0x8a/0xf6 > [<c105c63b>] ? mempool_alloc_slab+0xe/0x10 > [<c12197b9>] io_schedule+0x2b/0x42 > [<c109cbad>] sleep_on_buffer+0x8/0xc > [<c1219ad3>] __wait_on_bit+0x43/0x60 > [<c109cba5>] ? __wait_on_buffer+0x27/0x27 > [<c1219b46>] out_of_line_wait_on_bit+0x56/0x5e > [<c109cba5>] ? __wait_on_buffer+0x27/0x27 > [<c1038e76>] ? autoremove_wake_function+0x36/0x36 > [<c109cba3>] __wait_on_buffer+0x25/0x27 > [<c109d367>] __sync_dirty_buffer+0x6b/0x8b > [<c109d394>] sync_dirty_buffer+0xd/0xf > [<fa8d7d80>] ext3_commit_super.clone.24+0x4b/0xb0 [ext3] > [<c10ed9c7>] ? match_token+0xfd/0x1a2 > [<fa8d8585>] ext3_setup_super+0xb4/0x20d [ext3] > [<fa8d776d>] ? parse_options+0x32/0x4b0 [ext3] > [<c121a2e0>] ? __mutex_lock_slowpath+0x124/0x1b2 > [<c121a379>] ? mutex_lock+0xb/0x22 > [<fa8da100>] ext3_remount+0x1df/0x27e [ext3] > [<fa8d9f21>] ? ext3_fill_super+0x1843/0x1843 [ext3] > [<c10811d9>] do_remount_sb+0x7d/0xf6 > [<c1094379>] do_mount+0x44f/0x633 > [<c1093e9e>] ? copy_mount_options+0x8d/0xee > [<c10947bf>] sys_mount+0x66/0x9b > [<c121af1d>] syscall_call+0x7/0xb > Sched Debug Version: v0.10, 2.6.39-rc3+ #2 > ktime : 37933.056186 > sched_clk : 38008.731563 > cpu_clk : 37806.036844 > jiffies : 4294901746 > sched_clock_stable : 0 > > sysctl_sched > .sysctl_sched_latency : 6.000000 > .sysctl_sched_min_granularity : 0.750000 > .sysctl_sched_wakeup_granularity : 1.000000 > .sysctl_sched_child_runs_first : 0 > .sysctl_sched_features : 7279 > .sysctl_sched_tunable_scaling : 1 (logaritmic) > > cpu#0, 1699.419 MHz > .nr_running : 0 > .load : 0 > .nr_switches : 19596 > .nr_load_updates : 3167 > .nr_uninterruptible : 1 > .next_balance : 0.000000 > .curr->pid : 0 > .clock : 37680.038704 > .cpu_load[0] : 0 > .cpu_load[1] : 0 > .cpu_load[2] : 0 > .cpu_load[3] : 4 > .cpu_load[4] : 17 > .yld_count : 3 > .sched_switch : 0 > .sched_count : 19620 > .sched_goidle : 1555 > .ttwu_count : 1 > .ttwu_local : 1 > .bkl_count : 0 > > cfs_rq[0]: > .exec_clock : 6548.484099 > .MIN_vruntime : 0.000001 > .min_vruntime : 6269.914000 > .max_vruntime : 0.000001 > .spread : 0.000000 > .spread0 : 0.000000 > .nr_spread_over : 0 > .nr_running : 0 > .load : 0 > > rt_rq[0]: > .rt_nr_running : 0 > .rt_throttled : 0 > .rt_time : 200.624789 > .rt_runtime : 950.000000 > > runnable tasks: > task PID tree-key switches prio exec-runtime sum-exec sum-sleep > ---------------------------------------------------------------------------------------------------------- After talking to Dave Chinner I looked at the block layer merges. I ended up on 6c510389005 Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block Starting with this merge I see the problems. For testing I compiled the previous merge 3dab04e6978 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-mn1030 And apart from a futex error that gets fixed later on I was able to mount all partitions and could boot. As I said initially this happens with current HEAD as well so has not been fixed yet. Since not everyone is seeing this I wonder if it is related to my setup here SATA->Raid5->LVM? Kind regards, Michael Guntsche -- 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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