[Xen-bugs] [Bug 692] New: dom0 crashes while running xm-test blo

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=692

           Summary: dom0 crashes while running xm-test block_create tests
           Product: Xen
           Version: unstable
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: blocker
          Priority: P2
         Component: Hypervisor
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: dbarrera@xxxxxxxxxx


Changeset 10520, SLES 9, RHEL4, and FC4 boxes crashed (non-PAE) builds.


bl2-1 login: Unable to handle kernel NULL pointer dereference at
000000000000004c RIP:
<ffffffff8018ad91>{d_delete+33}
PGD 19dae067 PUD 1c3a4067 PMD 0
Oops: 0000 [1] SMP
CPU 2
Modules linked in: bridge usbserial parport_pc lp parport sg st sr_mod ide_cd
cdrom thermal processor fan button battery ac ipv6 joydev usbhid tg3 i2c_i801
i2c_core e752x_edac edac_mc uhci_hcd usbcore dm_mod piix ext3 jbd sd_mod
Pid: 20, comm: xenwatch Not tainted 2.6.16.13-xen #1
RIP: e030:[<ffffffff8018ad91>] <ffffffff8018ad91>{d_delete+33}
RSP: e02b:ffff88001f171d18  EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88001a71cbb0 RCX: ffff88001a71c760
RDX: 0000000000000000 RSI: 00002fe7dbae1026 RDI: ffff88001a71cbb8 RBP:
0000000000000000 R08: 0000000000000073 R09: 00002fe7dbae1026
R10: 0000000000007ff0 R11: ffff880011981848 R12: ffff88001a71c700
R13: ffff88001a71cbb0 R14: ffff880000a81d98 R15: ffffffff80141652
FS:  00002ac82eec04c0(0000) GS:ffffffff80487100(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000
Process xenwatch (pid: 20, threadinfo ffff88001f170000, task ffff88000096e8a0)
Stack: 0000000000000000 ffff88001a71cbb0
ffffffff803d3b40\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff2\uffff\uffff\u0461\uffff\u0255\uffff\uffff}\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u1579\u0745\u044d\uffff}\u0461\u0255\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u1579\u0745\u044d\uffff}\uffff\uffff\uffff\uffff\uffff\uffff}\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u1579\u0745\u044d\uffff}\u0461\u0255\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u047d\u0255\uffff\uffff\u0655}\u0745\uffff\uffff}\uffff\u0579\uffff\u0465\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u0655\uffff\u0451}\uffff\u0255\uffff\u0455}\uffff\u0461\u0255\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u047d\u0255\uffff\uffff\u0655}\u0745\uffff\uffff}\uffff\u0579\uffff\u0465\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u0655\uffff\u0451}\uffff\u0255\uffff\u0455}\uffff\u0461\u0255\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u1579\u0745\u044d\uffff}\u0461\u0255\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u0461\u0255\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\ud361\uffff\uffff\uffff}\u0265I\uffff3>BUG:
soft lockup detected on
CPU#0!\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\ud361\uffff\uffff\uffff}\u0265\uffff
CPU 0:
Modules linked in: bridge usbserial parport_pc lp parport sg st sr_mod ide_cd
cdrom thermal processor fan button battery ac ipv6 joydev usbhid tg3 i2c_i801
i2c_core e752x_edac edac_mc uhci_hcd usbcore dm_mod piix ext3 jbd sd_mod
Pid: 13506, comm: xenstored Not tainted 2.6.16.13-xen #1
RIP: e030:[<ffffffff8032c326>] <ffffffff8032c326>{.text.lock.spinlock+25}
RSP: e02b:ffff880011ec1dc0  EFLAGS: 00000282
RAX: ffffffff803b94e0 RBX: ffff88000baf07c8 RCX: 0000000000000037
RDX: 0000000000000000 RSI: ffff88000baf07c8 RDI: ffffffff80499680
RBP: ffff88000562ee90 R08: ffffffff801b72aa R09: 7efefefefefefeff
R10: 7efefefefefefeff R11: ffff88000eb7e6c8 R12: ffff88000baf07c8
R13: ffff88000562ee90 R14: ffff8800053ff9b8 R15: ffff8800053ff9b8
FS:  00002ad89619b0a0(0000) GS:ffffffff80487000(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000

Call Trace: <ffffffff8018aa61>{d_move+46} <ffffffff80183198>{vfs_rename+775}
       <ffffffff801856be>{sys_renameat+393} <ffffffff80187ce7>{sys_select+832}
       <ffffffff80BUG: soft lockup detected on CPU#1!
CPU 1:
Modules linked in: bridge usbserial parport_pc lp parport sg st sr_mod ide_cd
cdrom thermal processor fan button battery ac ipv6 joydev usbhid tg3 i2c_i801
i2c_core e752x_edac edac_mc uhci_hcd usbcore dm_mod piix ext3 jbd sd_mod
Pid: 1916, comm: irqbalance Not tainted 2.6.16.13-xen #1
RIP: e030:[<ffffffff8032c326>] <ffffffff8032c326>{.text.lock.spinlock+25}
RSP: e02b:ffff88001d2a9c70  EFLAGS: 00000282
RAX: ffff880000ad0c00 RBX: ffff8800118f06c0 RCX: 0000000000000000
RDX: ffff8800118f0764 RSI: ffff88001a6c7010 RDI: ffffffff80499680
RBP: ffff880000de4918 R08: 0000000000000001 R09: ffffffffff578040
R10: ffff880000ea7118 R11: ffffffffff578040 R12: ffff88001d2a9cf8
R13: ffff880000acfd58 R14: ffff88001d2a9ec8 R15: ffff88001d2a9cf8
FS:  00002abf8fed46e0(0000) GS:ffffffff80487080(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000

Call Trace: <ffffffff8018b2df>{d_alloc+346} <ffffffff8018233f>{do_lookup+166}
       <ffffffff801840a0>{__link_path_walk+2467}
<ffffffff8018459d>{link_path_walk+78}
       <ffffffff80173f25>{get_unused_fd+109}
<ffffffff80184ba7>{do_path_lookup+604}
       <ffffffff80184d39>{__path_lookup_intent_open+78}
<ffffffff80184dfb>{open_namei+127}
       <ffffffff8017421b>{do_filp_open+25}
<ffffffff80173f25>{get_unused_fd+109}       <ffffffff8017427d>{do_sys_open+68}
<ffffffff8010ae56>{system_call+134}
       <ffffffff8010add0>{system_call+0}
BUG: soft lockup detected on CPU#3!
CPU 3:
Modules linked in: bridge usbserial parport_pc lp parport sg st sr_mod ide_cd
cdrom thermal processor fan button battery ac ipv6 joydev usbhid tg3 i2c_i801
i2c_core e752x_edac edac_mc uhci_hcd usbcore dm_mod piix ext3 jbd sd_mod
Pid: 12863, comm: cron Not tainted 2.6.16.13-xen #1
RIP: e030:[<ffffffff8032c326>] <ffffffff8032c326>{.text.lock.spinlock+25}
RSP: e02b:ffff880009a47e10  EFLAGS: 00000286
RAX: 0000000000000000 RBX: ffff880011d343e0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff80499680 RDI: ffffffff80499680
RBP: ffffffff80499680 R08: 000000000000000c R09: 0000000000000004
R10: 0000000000000004 R11: ffffffffff5780c0 R12: 0000000044a3f145
R13: 00007fffffe53880 R14: 00007fffffe53ab0 R15: 00007fffffe53930
FS:  00002b9c54f036e0(0000) GS:ffffffff80487180(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000

Call Trace: <ffffffff802051fd>{_atomic_dec_and_lock+57}
       <ffffffff8018b3f2>{dput+42} <ffffffff80181d10>{path_release+12}
       <ffffffff8017e1e7>{vfs_stat_fd+57} <ffffffff8017e387>{sys_newstat+25}
       <ffffffff80132843>{sys_time+16} <ffffffff8010ae56>{system_call+134}
       <ffffffff8010add0>{system_call+0}
BUG: soft lockup detected on CPU#2!
CPU 2:
Modules linked in: bridge usbserial parport_pc lp parport sg st sr_mod ide_cd
cdrom thermal processor fan button battery ac ipv6 joydev usbhid tg3 i2c_i801
i2c_core e752x_edac edac_mc uhci_hcd usbcore dm_mod piix ext3 jbd sd_mod
Pid: 20, comm: xenwatch Not tainted 2.6.16.13-xen #1
RIP: e030:[<ffffffff8032c326>] <ffffffff8032c326>{.text.lock.spinlock+25}
RSP: e02b:ffff88001f171ae0  EFLAGS: 00000286
RAX: ffffffff803a4840 RBX: ffff88001d79aed0 RCX: ffff88001f171b38
RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffff80499680
RBP: ffff88000096e8a0 R08: ffff880000aa60d0 R09: ffff88001f175cf0
R10: 0000000000000003 R11: ffff8800018fbdc0 R12: 0000000000000020
R13: ffff8800009f0760 R14: ffff88000096e948 R15: ffff88001f171b38
FS:  00002ac82eec04c0(0000) GS:ffffffff80487100(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000

Call Trace: <ffffffff801ab982>{proc_pid_unhash+25}
<ffffffff8012ff3e>{release_task+41}
      
<ffffffff80131502>{do\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u024d\uffff\uffff\uffff}\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\ud47d}\uffff\uffff\uffff\uffff}\uffff\uffff\u0571\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u0655\uffff\u0451}\uffff\u0255\uffff\u0455}\uffff\u0461\u0255\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u027d\uffff}\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u0655\uffff\u0451}\uffff\u0255\uffff\u0455}\uffff\u0461\u0255\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u0655\uffff\u0451}\uffff\u0255\uffff\u0455}\uffff\u0461\u0255\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u027d\uffff}\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u0655\uffff\u0451}\uffff\u0255\uffff\u0455}\uffff\u0461\u0255\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff}\uffff\uffff\uffff\uffff\u0455\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff}\uffff\uffff\uffff\uffff\u0455\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u0255\uffff\uffff\u0655}\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u0359\uffff}\u0255\uffff\uffff\u0655}\uffff\u027d\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\ud271\uffff\uffff\uffff\uffff\uffff}\u0255\uffff\uffff\u0655\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u1579\uffff\uffff\uffff}\uffff\uffff\uffff}\u0255\uffff\uffff\u0655\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff}}\uffff\uffff\u0665\uffff\uffff}\u0255\uffff\uffff\uffff\u0355}\uffff\u0265\u0655\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\ud455\u0665\uffff\uffff}\u0255\uffff\uffff\uffff\u0355}\uffff\u0265\u0655\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff}\u0255\uffff\uffff\u0655}\uffff\uffff\u0665\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\ud455\u0665\uffff\uffff}\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\ud455\u0579\uffff\u0465\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u0655\uffff\u0451}\uffff\u0255\uffff\u0455}\uffff\u0461\u0255\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u047d\u0255\uffff\uffff\u0655}\u0745\uffff\uffff}\uffff\u0579\uffff\u0465\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u0655\uffff\u0451}\uffff\u0255\uffff\u0455}\uffff\u0461\u0255\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u1579\u0745\u044d\uffff}\u0461\u0255\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u0461\u0255\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\ud361\uffff\uffff\uffff}\u0265\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u0655\uffff\u0451}\uffff\u0255\uffff\u0455}\uffff\u0461\u0255\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u0461\u0255\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\ud361\uffff\uffff\uffff}\u0265\uffff


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[Xen-bugs] [Bug 692] New: dom0 crashes while running xm-test block_creat
