From mboxrd@z Thu Jan 1 00:00:00 1970 From: David F Barrera Subject: Re: Unable to handle kernel NULL pointer dereference at 000000000000004c RIP: Date: Thu, 29 Jun 2006 10:15:15 -0500 Message-ID: <44A3EE83.6080505@us.ibm.com> References: <44A3E9D7.1080708@us.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <44A3E9D7.1080708@us.ibm.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: David F Barrera Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org More details: all machines were running xm-test, specifically the=20 block_attach* set of tests, when the problem occurred. David F Barrera wrote: > The following error is causing my test machines to crash. > > changeset: 10520:ae245d35457b > tag: tip > user: kaf24@firebug.cl.cam.ac.uk > date: Wed Jun 28 07:59:29 2006 +0100 > summary: [HVM][Firmware] Make the creation of MP tables more dynami= c > > > bl2-1 login: Unable to handle kernel NULL pointer dereference at=20 > 000000000000004c RIP: > {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=20 > usbhid i2c_i801 i2c_core e752x_edac edac_mc uhci_hcd tg3 usbcore=20 > dm_mod piix ext3 jbd sd_mod > Pid: 20, comm: xenwatch Not tainted 2.6.16.13-xen #1 > RIP: e030:[] {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)=20 > knlGS:0000000000000000 > CS: e033 DS: 0000 ES: 0000 > Process xenwatch (pid: 20, threadinfo ffff88001f170000, task=20 > ffff88000096e8a0) > Stack: 0000000000000000 ffff88000e04a7c8 ffffffff803d3b40=20 > ffffffff801b25ba > 00002fe7dbae1026 ffff88000e04a7c8 ffffffff803d3b40 ffff88001cca10= 00 > 00000000fffffffc ffffffff801b2fa5 > Call Trace: {remove_dir+68} > -----------------------------------------------------------------------= - > > bl2-1 login: Unable to handle kernel NULL pointer dereference at 000000= 000000004c RIP: > {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 i= 2c_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:[] {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:00000000000= 00000 > CS: e033 DS: 0000 ES: 0000 > Process xenwatch (pid: 20, threadinfo ffff88001f170000, task ffff880000= 96e8a0) > Stack: 0000000000000000 ffff88000e04a7c8 ffffffff803d3b40 ffffffff801b2= 5ba > 00002fe7dbae1026 ffff88000e04a7c8 ffffffff803d3b40 ffff88001cca1= 000 > 00000000fffffffc ffffffff801b2fa5 > Call Trace: {remove_dir+68} 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 i= 2c_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:[] {.text.lock.spinlock+2= 5} > 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:00000000000= 00000 > CS: e033 DS: 0000 ES: 0000 > > Call Trace: {_atomic_dec_and_lock+57} > {dput+42} {__fput+337} > {remove_vma+59} {exit_mmap+2= 11} > {mmput+37} {do_exit+520} > {sys_exit_group+0} {system_c= all+134} > {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 i= 2c_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:[] {.text.lock.spinlock+2= 2} > 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:00000000000= 00000 > CS: e033 DS: 0000 ES: 0000 > > Call Trace: {d_move+46} {vfs_rename= +775} > {sys_renameat+393} {sBUG: so= ft 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 i= 2c_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:[] {.text.lock.spinlock+2= 5} > 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:00000000000= 00000 > CS: e033 DS: 0000 ES: 0000 > > Call Trace: {d_alloc+346} {do_looku= p+166} > {__link_path_walk+2467} {lin= k_path_walk+78} > {get_unused_\uffff\uffff\uffff\uffff\uffff\uff= ff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\ud47d}\uffff\uffff\uffff\uff= ff}\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uff= ff\uffff\uffff\ud755\uffff}\u0579\uffff\u0355\uffff}\uffff\uffff\uffff\uf= fff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\ud47d}\uffff\uffff\uf= fff}\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uf= fff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u0455\uffff}\uffff\uffff\uf= fff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uff= ff\uffff\uffff\uffff\uffff\uffff\u0455\uffff}\uffff\uffff\uffff\uffff\uff= ffUG: 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 i= 2c_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:[] {.text.lock.spinlock+2= 5} > 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:00000000000= 00000 > CS: e033 DS: 0000 ES: 0000 > > Call Trace: {proc_pid_unhash+25} {r= elease_task+41} > {do_exit+2146} {do_pafffffff= f8026ff3e>{xenbus_dev_remove+44} > {__device_release_driver+112} {device_release_driver+45} > {bus_remove_device+160} {dev= ice_del+67} > {device_unregister+9} {front= end_changed+244} > {otherend_changed+87} {xenwa= tch_thread+0} > {xenwatch_handle_callback+21} {xenwatch_thread+324} > peth1: received packet with own address as source address > > =20 > -----------------------------------------------------------------------= - > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel > =20 --=20 Regards, David F Barrera Linux Technology Center Systems and Technology Group, IBM "The wisest men follow their own direction. " =09 Euripides