Messages in this thread | | | Date | Mon, 5 Sep 2011 14:38:14 +0200 | From | Frank van Maarseveen <> | Subject | Re: 3.0.3 kernel BUG at kernel/timer.c:1035 |
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On Fri, Sep 02, 2011 at 01:10:58AM -0700, Andrew Morton wrote: > On Wed, 24 Aug 2011 15:02:38 +0200 Frank van Maarseveen <frankvm@frankvm.com> wrote: > > > Got several of these (logged via netconsole): > > > > kernel BUG at kernel/timer.c:1035! > > invalid opcode: 0000 [#1] > > PREEMPT > > SMP > > > > ... > > > > Call Trace: > > [<c107af48>] run_timer_softirq+0x148/0x1e0 > > [<c1069265>] ? rebalance_domains+0x135/0x160 > > [<c106a28b>] ? get_parent_ip+0xb/0x40 > > [<c106a28b>] ? get_parent_ip+0xb/0x40 > > [<c1075098>] __do_softirq+0x78/0x100 > > [<c1075020>] ? local_bh_enable+0xa0/0xa0 > > <IRQ> > > > > [<c10753ad>] ? irq_exit+0x5d/0x70 > > [<c104df53>] ? smp_apic_timer_interrupt+0x53/0x90 > > [<c178fa22>] ? apic_timer_interrupt+0x2a/0x30 > > [<c103d3ed>] ? mwait_idle+0x4d/0x80 > > [<c1034b0a>] ? cpu_idle+0x3a/0x80 > > [<c176dc3b>] ? rest_init+0x7b/0x80 > > [<c1b1471b>] ? start_kernel+0x2e2/0x2e8 > > [<c1b141c1>] ? loglevel+0x1a/0x1a > > [<c1b140b3>] ? i386_start_kernel+0xb3/0xbb > > > > > > Could be that a timer was freed while still running. > > Please ensure that all kernel debugging options are enabled. > Especially > > CONFIG_DEBUG_OBJECTS=y > CONFIG_DEBUG_OBJECTS_SELFTEST=y > CONFIG_DEBUG_OBJECTS_FREE=y > CONFIG_DEBUG_OBJECTS_TIMERS=y > CONFIG_DEBUG_OBJECTS_WORK=y > CONFIG_DEBUG_OBJECTS_RCU_HEAD=y > CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER=y > CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1 > CONFIG_SLUB_DEBUG_ON=y > > CONFIG_DEBUG_OBJECTS_TIMERS might catch this one.
Got something after enabling the above. Unplugging USB storage before umount a couple of times produced the following trace:
usb 1-7: USB disconnect, device number 10 Buffer I/O error on device sdb1, logical block 0 lost page write due to I/O error on sdb1 ------------[ cut here ]------------ WARNING: at lib/debugobjects.c:262 debug_print_object+0x85/0xa0() Hardware name: OptiPlex GX620 ODEBUG: free active (active state 0) object type: timer_list hint: wakeup_timer_fn+0x0/0x50 Modules linked in: [last unloaded: scsi_wait_scan] Pid: 5144, comm: umount Not tainted 3.0.4-y264 #1 Call Trace: [<c106f59d>] warn_slowpath_common+0x6d/0xa0 [<c12b5d75>] ? debug_print_object+0x85/0xa0 [<c12b5d75>] ? debug_print_object+0x85/0xa0 [<c106f64e>] warn_slowpath_fmt+0x2e/0x30 [<c12b5d75>] debug_print_object+0x85/0xa0 [<c10d4bf0>] ? bdi_init+0x150/0x150 [<c12b5f0a>] __debug_check_no_obj_freed+0xda/0x180 [<c106a2fb>] ? get_parent_ip+0xb/0x40 [<c12b68c5>] debug_check_no_obj_freed+0x15/0x20 [<c10f07ba>] kmem_cache_free+0x9a/0xc0 [<c12a9f18>] ? prop_local_destroy_percpu+0x8/0x10 [<c10d4e3b>] ? bdi_destroy+0xdb/0x110 [<c1299d95>] ? blk_release_queue+0x45/0x50 [<c1299d95>] blk_release_queue+0x45/0x50 [<c12a756a>] kobject_release+0x3a/0x80 [<c12a7530>] ? kobject_del+0x60/0x60 [<c12a891d>] kref_put+0x2d/0x60 [<c12a747d>] kobject_put+0x1d/0x50 [<c1084568>] ? __cancel_work_timer+0x68/0x70 [<c129707d>] blk_put_queue+0xd/0x10 [<c1465953>] scsi_device_dev_release_usercontext+0xe3/0x120 [<c1465870>] ? scsi_device_cls_release+0x10/0x10 [<c108432c>] execute_in_process_context+0x5c/0x70 [<c1465853>] scsi_device_dev_release+0x13/0x20 [<c1440559>] device_release+0x19/0x80 [<c10f06f9>] ? kfree+0xc9/0xd0 [<c12a7575>] ? kobject_release+0x45/0x80 [<c12a756a>] kobject_release+0x3a/0x80 [<c12a7530>] ? kobject_del+0x60/0x60 [<c12a891d>] kref_put+0x2d/0x60 [<c12a747d>] kobject_put+0x1d/0x50 [<c12a747d>] ? kobject_put+0x1d/0x50 [<c14402ff>] put_device+0xf/0x20 [<c145b2f3>] scsi_device_put+0x33/0x50 [<c148375b>] scsi_disk_put+0x2b/0x40 [<c1483daf>] sd_release+0x2f/0x60 [<c11200f0>] __blkdev_put+0x120/0x160 [<c11200cd>] __blkdev_put+0xfd/0x160 [<c1120153>] blkdev_put+0x23/0x110 [<c10f67a0>] kill_block_super+0x40/0x70 [<c10f6c0d>] deactivate_locked_super+0x3d/0x60 [<c10f72a9>] deactivate_super+0x49/0x70 [<c110e1c6>] mntput_no_expire+0x86/0xc0 [<c110f10d>] sys_umount+0x5d/0xb0 [<c179141c>] sysenter_do_call+0x12/0x2c ---[ end trace ad6863f336beb434 ]---
-- Frank
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