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[Xen-devel] Oops at page_referenced

From: Flavio Leitner <fbl@xxxxxxxxxxxxxxxx>

Date: Wed, 6 Oct 2004 15:42:43 -0300

Delivery-date: Wed, 06 Oct 2004 19:48:44 +0100

List-id: List for Xen developers <xen-devel.lists.sourceforge.net>

I update here to bitkeeper of yesterday (2004/10/05) and I got the oops below. The rpm is working fine and test program posted before prints lots of dots only. I'll keep my eye on it. Linux version 2.6.8.1-xenU (fbl@xxxxxxxxxxxxxxxxxxx) (gcc version 3.4.2) #1 Wed Oct 6 11:26:53 BRT 2004 BIOS-provided physical RAM map: Xen: 0000000000000000 - 0000000010000000 (usable) 0MB HIGHMEM available. 256MB LOWMEM available. On node 0 totalpages: 65536 DMA zone: 4096 pages, LIFO batch:1 Normal zone: 61440 pages, LIFO batch:15 HighMem zone: 0 pages, LIFO batch:1 DMI not present. Built 1 zonelists Kernel command line: ip=dhcp root=/dev/sda1 ro 3 panic=30 Initializing CPU#0 PID hash table entries: 2048 (order 11: 16384 bytes) Xen reported: 2799.259 MHz processor. Using tsc for high-res timesource Dentry cache hash table entries: 65536 (order: 6, 262144 bytes) Inode-cache hash table entries: 32768 (order: 5, 131072 bytes) Memory: 256468k/262144k available (1643k kernel code, 5340k reserved, 399k data, 96k init, 0k highmem) Checking if this processor honours the WP bit even in supervisor mode... Ok. Calibrating delay loop... 5583.66 BogoMIPS Mount-cache hash table entries: 512 (order: 0, 4096 bytes) CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000 CPU: After vendor identify, caps: bfebfbff 00000000 00000000 00000000 CPU: Trace cache: 12K uops, L1 D cache: 8K CPU: L2 cache: 512K CPU: After all inits, caps: beebcbf1 00000000 00000000 00000080 CPU: Intel(R) Xeon(TM) CPU 2.80GHz stepping 07 Enabling unmasked SIMD FPU exception support... done. Checking 'hlt' instruction... disabled NET: Registered protocol family 16 Initializing Cryptographic API RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize Xen virtual console successfully installed as tty Event-channel device installed. [XEN] Initialising virtual block device driver Using anticipatory io scheduler [XEN] Initialising virtual ethernet driver. [XEN] Netfront recovered tx=0 rxfree=0 NET: Registered protocol family 2 IP: routing cache hash table of 2048 buckets, 16Kbytes TCP: Hash tables configured (established 16384 bind 32768) NET: Registered protocol family 1 NET: Registered protocol family 17 IP-Config: Guessing netmask 255.0.0.0 IP-Config: Complete: device=eth0, addr=62.0.0.0, mask=255.0.0.0, gw=255.255.255.255, host=62.0.0.0, domain=, nis-domain=(none), bootserver=255.255.255.255, rootserver=255.255.255.255, rootpath= [XEN:vbd_update:drivers/xen/blkfront/blkfront.c:130] > [XEN:vbd_update:drivers/xen/blkfront/blkfront.c:131] < [XEN:vbd_update:drivers/xen/blkfront/blkfront.c:130] > [XEN:vbd_update:drivers/xen/blkfront/blkfront.c:131] < VFS: Mounted root (ext2 filesystem) readonly. Freeing unused kernel memory: 96k freed *************************************************************** *************************************************************** ** WARNING: Currently emulating unsupported memory accesses ** ** in /lib/tls libraries. The emulation is very ** ** slow, and may not work correctly with all ** ** programs (e.g., some may 'Segmentation fault'). ** ** TO ENSURE FULL PERFORMANCE AND CORRECT FUNCTION, ** ** YOU MUST EXECUTE THE FOLLOWING AS ROOT: ** ** mv /lib/tls /lib/tls.disabled ** *************************************************************** *************************************************************** Pausing... 5Pausing... 4Pausing... 3Pausing... 2Pausing... 1Continuing... ------------[ cut here ]------------ kernel BUG at mm/rmap.c:251! invalid operand: 0000 [#1] PREEMPT Modules linked in: CPU: 0 EIP: 0061:[<c014e0b6>] Not tainted EFLAGS: 00010246 (2.6.8.1-xenU) EIP is at page_referenced+0xe6/0x170 eax: cfef0000 ebx: c101f198 ecx: 00000004 edx: c13729b8 esi: c101f180 edi: c13729b8 ebp: 00000000 esp: cfef1e48 ds: 0069 es: 0069 ss: 0069 Process kswapd0 (pid: 18, threadinfo=cfef0000 task=cfedabd0) Stack: c1009ba0 ceef1660 cfef1e68 c11c6840 c1195200 c118b4e0 00000001 c11622c0 00000001 cfef0000 c02c8f20 00000000 c01428d5 c101f198 c101f180 c02c8f20 cfef0000 c01447c5 c101f180 cfef0000 c02c9044 c02c8f3c 00000001 00000020 Call Trace: [<c01428d5>] __pagevec_release+0x25/0x30 [<c01447c5>] refill_inactive_zone+0x555/0x650 [<c0144944>] shrink_zone+0x84/0xd0 [<c0144dc6>] balance_pgdat+0x1e6/0x2a0 [<c0144f4a>] kswapd+0xca/0xd0 [<c011b8f0>] autoremove_wake_function+0x0/0x60 [<c010dda2>] ret_from_fork+0x6/0x14 [<c011b8f0>] autoremove_wake_function+0x0/0x60 [<c0144e80>] kswapd+0x0/0xd0 [<c010f6b5>] kernel_thread_helper+0x5/0x10 Code: 0f 0b fb 00 dc 4b 2a c0 89 f6 8d 5a c8 eb 26 89 5c 24 04 8d <6>note: kswapd0[18] exited with preempt_count 2 ------------[ cut here ]------------ kernel BUG at mm/rmap.c:251! invalid operand: 0000 [#2] PREEMPT Modules linked in: CPU: 0 EIP: 0061:[<c014e0b6>] Not tainted EFLAGS: 00010246 (2.6.8.1-xenU) EIP is at page_referenced+0xe6/0x170 eax: cfb70000 ebx: c1018a18 ecx: 00000004 edx: c13729b8 esi: c1018a00 edi: c13729b8 ebp: 00000000 esp: cfb71c74 ds: 0069 es: 0069 ss: 0069 Process cc1plus (pid: 21166, threadinfo=cfb70000 task=c1b21260) Stack: 00000001 c10a1320 c109f060 c10555e0 c11e5680 c109dde0 00000001 c11e5660 00000001 c109ef60 c109c280 c1055360 c1055520 c1018a18 c1018a00 c02c8f20 cfb70000 c01447c5 c1018a00 cfb70000 c02c9044 c02c8f3c 00000001 00000020 Call Trace: [<c01447c5>] refill_inactive_zone+0x555/0x650 [<c0144944>] shrink_zone+0x84/0xd0 [<c01449e3>] shrink_caches+0x53/0x70 [<c0144acf>] try_to_free_pages+0xcf/0x1e0 [<c013c0ab>] __alloc_pages+0x1bb/0x300 [<c013991b>] generic_file_aio_write_nolock+0x2fb/0xb90 [<c013bf92>] __alloc_pages+0xa2/0x300 [<c0148f10>] do_no_page+0x70/0x490 [<c013a21d>] generic_file_write_nolock+0x6d/0x90 [<c01264ea>] run_timer_softirq+0x1ea/0x200 [<c013a346>] generic_file_write+0x56/0x70 [<c0158c46>] vfs_write+0x116/0x160 [<c0158d61>] sys_write+0x51/0x80 [<c010def3>] syscall_call+0x7/0xb Code: 0f 0b fb 00 dc 4b 2a c0 89 f6 8d 5a c8 eb 26 89 5c 24 04 8d <6>note: cc1plus[21166] exited with preempt_count 2 bad: scheduling while atomic! [<c02994d8>] schedule+0x4b8/0x4f0 [<c0147303>] unmap_page_range+0x53/0x90 [<c014750c>] unmap_vmas+0x1cc/0x1e0 [<c014c27c>] exit_mmap+0x7c/0x160 [<c011bbd2>] mmput+0x62/0x90 [<c0120351>] do_exit+0x151/0x400 [<c010b1d0>] do_invalid_op+0x0/0xc0 [<c010aea8>] die+0x118/0x120 [<c010b270>] do_invalid_op+0xa0/0xc0 [<c014e0b6>] page_referenced+0xe6/0x170 [<c013c29c>] __pagevec_free+0x1c/0x30 [<c014295d>] __pagevec_release_nonlru+0x7d/0x90 [<c010e049>] error_code+0x2d/0x38 [<c014e0b6>] page_referenced+0xe6/0x170 [<c01447c5>] refill_inactive_zone+0x555/0x650 [<c0144944>] shrink_zone+0x84/0xd0 [<c01449e3>] shrink_caches+0x53/0x70 [<c0144acf>] try_to_free_pages+0xcf/0x1e0 [<c013c0ab>] __alloc_pages+0x1bb/0x300 [<c013991b>] generic_file_aio_write_nolock+0x2fb/0xb90 [<c013bf92>] __alloc_pages+0xa2/0x300 [<c0148f10>] do_no_page+0x70/0x490 [<c013a21d>] generic_file_write_nolock+0x6d/0x90 [<c01264ea>] run_timer_softirq+0x1ea/0x200 [<c013a346>] generic_file_write+0x56/0x70 [<c0158c46>] vfs_write+0x116/0x160 [<c0158d61>] sys_write+0x51/0x80 [<c010def3>] syscall_call+0x7/0xb -- Flávio Bruno Leitner <fbl@xxxxxxxxxxxxxxxx> [ E74B 0BD0 5E05 C385 239E 531C BC17 D670 7FF0 A9E0 ] ------------------------------------------------------- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? 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