[Bug 340338] New: Kernel NULL pointer dereference
https://bugzilla.novell.com/show_bug.cgi?id=340338#c1 Summary: Kernel NULL pointer dereference Product: openSUSE 10.3 Version: Final Platform: x86 OS/Version: openSUSE 10.3 Status: NEW Severity: Normal Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: ralf@bj-ig.de QAContact: qa@suse.de Found By: Customer Nov 8 19:19:26 tower-core kernel: BUG: unable to handle kernel NULL pointer dereference at virtual address 000002a8 Nov 8 19:19:26 tower-core kernel: printing eip: Nov 8 19:19:26 tower-core kernel: c01837ad Nov 8 19:19:26 tower-core kernel: 29d5b000 -> *pde = 00000000:d6143001 Nov 8 19:19:26 tower-core kernel: 29b43000 -> *pme = 00000000:00000000 Nov 8 19:19:26 tower-core kernel: Oops: 0000 [#1] Nov 8 19:19:26 tower-core kernel: SMP Nov 8 19:19:26 tower-core kernel: last sysfs file: /devices/xen-backend/vbd-1-51713/statistics/wr_sect Nov 8 19:19:26 tower-core kernel: Modules linked in: xt_tcpudp xt_pkttype ipt_LOG xt_limit xt_physdev af_packet bridge netbk netloop blkbk blktap xenbus_be edd ipt_REJECT xt_state iptable_mangle iptable_nat nf_nat iptable_filter nf_conntrack_ipv4 nf_conntrack nfnetlink ip_tables ip6_tables x_tables microcode firmware_class coretemp it87 hwmon_vid hwmon i2c_isa reiserfs loop dm_snapshot dm_mod ide_cd cdrom ata_generic pata_jmicron generic sata_promise button thermal parport_pc sym53c8xx processor rtc_cmos rtc_core rtc_lib jmicron parport i2c_i801 scsi_transport_spi ide_core e1000 i2c_core r8169 intel_agp agpgart joydev sg xfs raid456 xor raid1 raid0 sd_mod ahci libata scsi_mod ehci_hcd uhci_hcd usbcore xenblk xennet Nov 8 19:19:26 tower-core kernel: CPU: 0 Nov 8 19:19:26 tower-core kernel: EIP: 0061:[<c01837ad>] Tainted: G N VLI Nov 8 19:19:26 tower-core kernel: EFLAGS: 00010297 (2.6.22.12-0.1-xenpae #1) Nov 8 19:19:26 tower-core kernel: EIP is at __block_write_full_page+0xf3/0x31c Nov 8 19:19:26 tower-core kernel: eax: c1660380 ebx: 00000000 ecx: 00000000 edx: 09698bc1 Nov 8 19:19:26 tower-core kernel: esi: 000002a8 edi: 09698bc2 ebp: 00000000 esp: c04e1de8 Nov 8 19:19:26 tower-core kernel: ds: 007b es: 007b fs: 00d8 gs: 0000 ss: 0069 Nov 8 19:19:26 tower-core kernel: Process pdflush (pid: 194, ti=c04e0000 task=c0c30ab0 task.ti=c04e0000) Nov 8 19:19:26 tower-core kernel: Stack: c0c30ab0 24cc7ba8 00000087 00001491 c018725c c1660380 e9c8eeb0 ea1943c0 Nov 8 19:19:26 tower-core kernel: 0d47ffff 00000000 c03b7f94 00001000 c1660380 80000000 000000d4 00000000 Nov 8 19:19:26 tower-core kernel: c0183aa4 c04e1f74 c04e1f74 c018725c e9c8eeb0 e9c8ef58 c1660380 0000000a Nov 8 19:19:26 tower-core kernel: Call Trace: Nov 8 19:19:26 tower-core kernel: [<c018725c>] blkdev_get_block+0x0/0x43 Nov 8 19:19:26 tower-core kernel: [<c0183aa4>] block_write_full_page+0xce/0xd6 Nov 8 19:19:26 tower-core kernel: [<c018725c>] blkdev_get_block+0x0/0x43 Nov 8 19:19:26 tower-core kernel: [<c014b37c>] __writepage+0x8/0x21 Nov 8 19:19:26 tower-core kernel: [<c014b6dc>] write_cache_pages+0x15d/0x265 Nov 8 19:19:26 tower-core kernel: [<c014b374>] __writepage+0x0/0x21 Nov 8 19:19:26 tower-core kernel: [<c014b7e4>] generic_writepages+0x0/0x26 Nov 8 19:19:26 tower-core kernel: [<c014b803>] generic_writepages+0x1f/0x26 Nov 8 19:19:26 tower-core kernel: [<c014b82a>] do_writepages+0x20/0x30 Nov 8 19:19:26 tower-core kernel: [<c017f1b3>] __writeback_single_inode+0x1a1/0x320 Nov 8 19:19:26 tower-core kernel: [<ee2e7853>] dm_table_any_congested+0x33/0x4c [dm_mod] Nov 8 19:19:26 tower-core kernel: [<ee2e7853>] dm_table_any_congested+0x33/0x4c [dm_mod] Nov 8 19:19:26 tower-core kernel: [<c017f610>] sync_sb_inodes+0x16a/0x225 Nov 8 19:19:26 tower-core kernel: [<c017fa0b>] writeback_inodes+0x6a/0xb3 Nov 8 19:19:26 tower-core kernel: [<c014bdcb>] wb_kupdate+0x7c/0xde Nov 8 19:19:26 tower-core kernel: [<c014c1d3>] pdflush+0x149/0x1fb Nov 8 19:19:26 tower-core kernel: [<c014bd4f>] wb_kupdate+0x0/0xde Nov 8 19:19:26 tower-core kernel: [<c014c08a>] pdflush+0x0/0x1fb Nov 8 19:19:26 tower-core kernel: [<c012df3e>] kthread+0x38/0x5e Nov 8 19:19:26 tower-core kernel: [<c012df06>] kthread+0x0/0x5e Nov 8 19:19:26 tower-core kernel: [<c0104c07>] kernel_thread_helper+0x7/0x10 Nov 8 19:19:26 tower-core kernel: ======================= Nov 8 19:19:26 tower-core kernel: Code: c1 20 8b 40 0c 0f 45 ef 0f 45 fb 89 44 24 28 89 c6 3b 6c 24 24 72 14 77 06 3b 7c 24 20 76 0c f0 0f ba 36 01 f0 0f ba 2e 00 eb 7a <8b> 06 a8 20 75 74 8b 06 a8 02 74 6e 8b 54 24 2c 39 56 14 74 29 Nov 8 19:19:26 tower-core kernel: EIP: [<c01837ad>] __block_write_full_page+0xf3/0x31c SS:ESP 0069:c04e1de8 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=340338#c1
--- Comment #1 from Ralf Müller
https://bugzilla.novell.com/show_bug.cgi?id=340338
Ralf Müller
https://bugzilla.novell.com/show_bug.cgi?id=340338#c2
--- Comment #2 from Ralf Müller
https://bugzilla.novell.com/show_bug.cgi?id=340338
User jeffm@novell.com added comment
https://bugzilla.novell.com/show_bug.cgi?id=340338#c3
Jeff Mahoney
https://bugzilla.novell.com/show_bug.cgi?id=340338
User ralf@bj-ig.de added comment
https://bugzilla.novell.com/show_bug.cgi?id=340338#c4
--- Comment #4 from Ralf Müller
That bug has been closed. Can you still reproduce this bug with the latest kernel?
I use a 64bit kernel on that system now - so no I can't reproduce the bug anymore. On the other hand I can't tell that it is gone ... -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=340338
User gregkh@novell.com added comment
https://bugzilla.novell.com/show_bug.cgi?id=340338#c5
Greg Kroah-Hartman
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