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[Xen-devel] Unable to handle kernel NULL pointer dereference at 00000000

from [David F Barrera] [Permanent Link][Original]
To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] Unable to handle kernel NULL pointer dereference at 000000000000004c RIP:
From: David F Barrera <dfbp@xxxxxxxxxx>
Date: Thu, 29 Jun 2006 09:55:19 -0500
Delivery-date: Thu, 29 Jun 2006 07:57:28 -0700
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The following error is causing my test machines to crash.

changeset:   10520:ae245d35457b
tag:         tip
user:        kaf24@xxxxxxxxxxxxxxxxxxxx
date:        Wed Jun 28 07:59:29 2006 +0100
summary:     [HVM][Firmware] Make the creation of MP tables more dynamic


bl2-1 login: Unable to handle kernel NULL pointer dereference at 
000000000000004c RIP:
<ffffffff8018ad91>{d_delete+33}
PGD 1c51c067 PUD ec07067 PMD 0
Oops: 0000 [1] SMP
CPU 3
Modules linked in: bridge usbserial parport_pc lp parport sg st sr_mod ide_cd 
cdrom joydev thermal processor fan button battery ac ipv6 usbhid i2c_i801 
i2c_core e752x_edac edac_mc uhci_hcd tg3 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: ffff88000e04a7c8 RCX: ffff88001d5aec10
RDX: 0000000000000000 RSI: 00002fe7dbae1026 RDI: ffff88000e04a7d0
RBP: 0000000000000000 R08: 0000000000000073 R09: 00002fe7dbae1026
R10: 0000000000007ff0 R11: ffff88001cca1048 R12: ffff88001d5aebb0
R13: ffff88000e04a7c8 R14: ffff880000a81d98 R15: ffffffff80141652
FS:  00002b133c86cbc0(0000) GS:ffffffff80487180(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000
Process xenwatch (pid: 20, threadinfo ffff88001f170000, task ffff88000096e8a0)
Stack: 0000000000000000 ffff88000e04a7c8 ffffffff803d3b40 ffffffff801b25ba
      00002fe7dbae1026 ffff88000e04a7c8 ffffffff803d3b40 ffff88001cca1000
      00000000fffffffc ffffffff801b2fa5
Call Trace: <ffffffff801b25ba>{remove_dir+68} 
--

Regards,

David F Barrera
Linux Technology Center
Systems and Technology Group, IBM

"The wisest men follow their own direction. "
        
                         Euripides


bl2-1 login: Unable to handle kernel NULL pointer dereference at 
000000000000004c RIP:
<ffffffff8018ad91>{d_delete+33}
PGD 1c51c067 PUD ec07067 PMD 0
Oops: 0000 [1] SMP
CPU 3
Modules linked in: bridge usbserial parport_pc lp parport sg st sr_mod ide_cd 
cdrom joydev thermal processor fan button battery ac ipv6 usbhid i2c_i801 
i2c_core e752x_edac edac_mc uhci_hcd tg3 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: ffff88000e04a7c8 RCX: ffff88001d5aec10
RDX: 0000000000000000 RSI: 00002fe7dbae1026 RDI: ffff88000e04a7d0
RBP: 0000000000000000 R08: 0000000000000073 R09: 00002fe7dbae1026
R10: 0000000000007ff0 R11: ffff88001cca1048 R12: ffff88001d5aebb0
R13: ffff88000e04a7c8 R14: ffff880000a81d98 R15: ffffffff80141652
FS:  00002b133c86cbc0(0000) GS:ffffffff80487180(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000
Process xenwatch (pid: 20, threadinfo ffff88001f170000, task ffff88000096e8a0)
Stack: 0000000000000000 ffff88000e04a7c8 ffffffff803d3b40 ffffffff801b25ba
       00002fe7dbae1026 ffff88000e04a7c8 ffffffff803d3b40 ffff88001cca1000
       00000000fffffffc ffffffff801b2fa5
Call Trace: <ffffffff801b25ba>{remove_dir+68} 
<ffffffff801\uffff\uffff\uffff\uffff\uffff\uffff\ud455\u0665\uffff\uffff}\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\ud455\u0665\uffff\uffff}\u0579\u0255\uffff\uffff\uffff\u0455\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u027d\uffff\u0455\uffff\uffff}\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\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}\u0265\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u0655\uffff\u0451}\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffffI%A\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff}\uffff\uffff\uffff\uffff\u0455\uffffIMA\uffff\uffff\uffff\uffff\uffff<3>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 joydev thermal processor fan button battery ac ipv6 usbhid i2c_i801 
i2c_core e752x_edac edac_mc uhci_hcd tg3 usbcore dm_mod piix ext3 jbd sd_mod
Pid: 13905, comm: trivial-rewrite Not tainted 2.6.16.13-xen #1
RIP: e030:[<ffffffff8032c326>] <ffffffff8032c326>{.text.lock.spinlock+25}
RSP: e02b:ffff88000ab1de10  EFLAGS: 00000286
RAX: 0000000000000000 RBX: ffff88000416b9e0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff80499680 RDI: ffffffff80499680
RBP: ffffffff80499680 R08: ffff8800010cb268 R09: ffff880001000000
R10: 0000000000007ff0 R11: ffff8800015655d8 R12: ffff88001ab649b8
R13: ffff88001ab649b8 R14: ffff8800007382c0 R15: ffff88000416b9e0
FS:  00002b79cbb4e960(0000) GS:ffffffff80487100(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000

Call Trace: <ffffffff802051fd>{_atomic_dec_and_lock+57}
       <ffffffff8018b3f2>{dput+42} <ffffffff8017683d>{__fput+337}
       <ffffffff801648d4>{remove_vma+59} <ffffffff801649bd>{exit_mmap+211}
       <ffffffff8012aefc>{mmput+37} <ffffffff80130ea8>{do_exit+520}
       <ffffffff80131620>{sys_exit_group+0} <ffffffff8010ae56>{system_call+134}
       <ffffffff8010add0>{system_call+0}
BUG: soft lockup detected on CPU#0!
CPU 0:
Modules linked in: bridge usbserial parport_pc lp parport sg st sr_mod ide_cd 
cdrom joydev thermal processor fan button battery ac ipv6 usbhid i2c_i801 
i2c_core e752x_edac edac_mc uhci_hcd tg3 usbcore dm_mod piix ext3 jbd sd_mod
Pid: 14641, comm: xenstored Not tainted 2.6.16.13-xen #1
RIP: e030:[<ffffffff8032c323>] <ffffffff8032c323>{.text.lock.spinlock+22}
RSP: e02b:ffff88001bd51dc0  EFLAGS: 00000286
RAX: ffffffff803b94e0 RBX: ffff880007c66a20 RCX: 0000000000000037
RDX: 0000000000000000 RSI: ffff880007c66a20 RDI: ffffffff80499680
RBP: ffff880007c66ae8 R08: ffffffff801b72aa R09: 7efefefefefefeff
R10: 7efefefefefefeff R11: ffff8800047ff458 R12: ffff880007c66a20
R13: ffff880007c66ae8 R14: ffff88001e4a8d28 R15: ffff88001e4a8d28
FS:  00002aceb17ed0a0(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} <ffffffff80176267>{sBUG: soft 
lockup detected on CPU#1!
CPU 1:
Modules linked in: bridge usbserial parport_pc lp parport sg st sr_mod ide_cd 
cdrom joydev thermal processor fan button battery ac ipv6 usbhid i2c_i801 
i2c_core e752x_edac edac_mc uhci_hcd tg3 usbcore dm_mod piix ext3 jbd sd_mod
Pid: 1903, comm: irqbalance Not tainted 2.6.16.13-xen #1
RIP: e030:[<ffffffff8032c326>] <ffffffff8032c326>{.text.lock.spinlock+25}
RSP: e02b:ffff88001aaa5c70  EFLAGS: 00000286
RAX: ffff880000ad0c00 RBX: ffff88000e04aae8 RCX: 0000000000000000
RDX: ffff88000e04ab8c RSI: ffff880011ad4010 RDI: ffffffff80499680
RBP: ffff880000de4918 R08: 0000000000000001 R09: ffffffffff578040
R10: ffff880000549998 R11: ffffffffff578040 R12: ffff88001aaa5cf8
R13: ffff880000acfd58 R14: ffff88001aaa5ec8 R15: ffff88001aaa5cf8
FS:  00002b36d77756e0(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_\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\ud47d}\uffff\uffff\uffff\uffff}\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\ud755\uffff}\u0579\uffff\u0355\uffff}\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\ud47d}\uffff\uffff\uffff}\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\uffff\uffff\uffff\u0455\uffff}\uffff\uffff\uffff\uffff\uffffUG:
 soft lockup detected on CPU#3!
CPU 3:
Modules linked in: bridge usbserial parport_pc lp parport sg st sr_mod ide_cd 
cdrom joydev thermal processor fan button battery ac ipv6 usbhid i2c_i801 
i2c_core e752x_edac edac_mc uhci_hcd tg3 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: ffff88001caea3a0 RCX: ffff88001f171b38
RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffff80499680
RBP: ffff88000096e8a0 R08: ffff880000aa60d0 R09: ffff88001f175cf0
R10: 0000000000000001 R11: ffff8800018fbdc0 R12: 0000000000000020
R13: ffff8800009f0760 R14: ffff88000096e948 R15: ffff88001f171b38
FS:  00002b133c86cbc0(0000) GS:ffffffff80487180(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000

Call Trace: <ffffffff801ab982>{proc_pid_unhash+25} 
<ffffffff8012ff3e>{release_task+41}
       <ffffffff80131502>{do_exit+2146} 
<ffffffff80119415>{do_paffffffff8026ff3e>{xenbus_dev_remove+44}
       <ffffffff80262bb4>{__device_release_driver+112} 
<ffffffff80262cf0>{device_release_driver+45}
       <ffffffff80262453>{bus_remove_device+160} 
<ffffffff80261590>{device_del+67}
       <ffffffff802615d1>{device_unregister+9} 
<ffffffff80272603>{frontend_changed+244}
       <ffffffff8026f824>{otherend_changed+87} 
<ffffffff8026e2c4>{xenwatch_thread+0}
       <ffffffff8026e291>{xenwatch_handle_callback+21} 
<ffffffff8026e408>{xenwatch_thread+324}
   peth1: received packet with  own address as source address


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