Hi there, While playing around with fsstress[0] I've received the trace below when starting fsstress with 1000 ops/process and 1000 process. Sachin Sant reported an fsstress-triggered problem in [1], but as my somehwat different, I'll open a new list thread.
Full dmesg and .config: http://nerdbynature.de/bits/2.6.29-rc8/ Btw, in the trace below it says: last sysfs file: /sys/devices/system/clocksource/clocksource0/current_clocksource Indeed, I've set the clocksource to "acpi_pm", as tsc (default) and hpet made the clock go too slow (it's a Xen DomU). Thanks, Christian. [0] http://ltp.cvs.sourceforge.net/viewvc/ltp/ltp/testcases/kernel/fs/fsstress/ [1] http://lkml.org/lkml/2009/3/16/25 [334518.774623] BUG: Bad page state in process fsstress pfn:0428b [334518.775347] page:ffffe200000e8e68 flags:0100000000000808 count:0 mapcount:0 mapping:ffff88000752ece8 index:6c00f [334518.776631] Pid: 32266, comm: fsstress Not tainted 2.6.29-rc8 #2 [334518.777244] Call Trace: [334518.777689] [<ffffffff802943e9>] bad_page+0x102/0x113 [334518.778339] [<ffffffffa024df5d>] diWrite+0x449/0x45a [jfs] [334518.778963] [<ffffffff802987c9>] pagevec_lookup_tag+0x1a/0x21 [334518.779702] [<ffffffffa025d08b>] txCommit+0x1d5/0xd83 [jfs] [334518.780400] [<ffffffff80485af2>] _spin_lock+0x5/0x7 [334518.780962] [<ffffffffa025cea1>] txBegin+0x27d/0x292 [jfs] [334518.781566] [<ffffffff80485a61>] _spin_lock_irq+0xd/0xf [334518.782236] [<ffffffffa02451eb>] jfs_commit_inode+0xa9/0xf1 [jfs] [334518.782885] [<ffffffffa02456a9>] jfs_write_inode+0x31/0x41 [jfs] [334518.783610] [<ffffffff802d96d0>] __writeback_single_inode+0x1e1/0x3b5 [334518.784337] [<ffffffff802987c9>] pagevec_lookup_tag+0x1a/0x21 [334518.784955] [<ffffffff802910ad>] wait_on_page_writeback_range+0xce/0x11b [334518.785601] [<ffffffff802d9d16>] generic_sync_sb_inodes+0x2a7/0x458 [334518.786309] [<ffffffff802d9f4a>] sync_inodes_sb+0x83/0x88 [334518.786913] [<ffffffff802d9fa5>] __sync_inodes+0x56/0xa9 [334518.787578] [<ffffffff802da002>] sync_inodes+0xa/0x1b [334518.788245] [<ffffffff802dca47>] do_sync+0x12/0x5a [334518.788808] [<ffffffff802dca9d>] sys_sync+0xe/0x15 [334518.789363] [<ffffffff8021102a>] system_call_fastpath+0x16/0x1b [334526.753776] BUG at /data/Scratch/scm/linux-2.6-git/fs/jfs/jfs_txnmgr.c:940 assert(mp->nohomeok > 0) [334526.754992] ------------[ cut here ]------------ [334526.755617] kernel BUG at /data/Scratch/scm/linux-2.6-git/fs/jfs/jfs_txnmgr.c:940! [334526.756799] invalid opcode: 0000 [#1] SMP [334526.757429] last sysfs file: /sys/devices/system/clocksource/clocksource0/current_clocksource [334526.757574] CPU 0 [334526.757574] Modules linked in: jfs nls_base nfs lockd nfs_acl auth_rpcgss sunrpc ext4 jbd2 crc16 loop 8139cp mii ext3 jbd mbcache raid0 md_mod ide_cd_mod cdrom ide_gd_mod thermal processor fan thermal_sys ata_generic ide_pci_generic ata_piix libata scsi_mod piix ide_core [334526.757574] Pid: 10122, comm: jfsCommit Tainted: G B 2.6.29-rc8 #2 HVM domU [334526.757574] RIP: 0010:[<ffffffffa025bfe5>] [<ffffffffa025bfe5>] txUnlock+0xb9/0x20f [jfs] [334526.757574] RSP: 0000:ffff880001191e80 EFLAGS: 00010286 [334526.757574] RAX: 000000000000006b RBX: ffff8800032750b0 RCX: ffffffff80485a4c [334526.757574] RDX: ffff8800807da000 RSI: 0000000000000046 RDI: 0000000000000286 [334526.757574] RBP: ffffc2000125b170 R08: 0000000000000000 R09: 000000000000000a [334526.757574] R10: 000000000000000a R11: 0000000000018600 R12: ffffc2000123d460 [334526.757574] R13: ffff88000681bc00 R14: 00000000003e003e R15: ffff88000681bd10 [334526.757574] FS: 0000000000000000(0000) GS:ffffffff8086e000(0000) knlGS:0000000000000000 [334526.757574] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b [334526.757574] CR2: 0000000000401868 CR3: 0000000002b7b000 CR4: 00000000000006e0 [334526.757574] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [334526.757574] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [334526.757574] Process jfsCommit (pid: 10122, threadinfo ffff880001190000, task ffff880005cc92a0) [334526.757574] Stack: [334526.757574] 0000000000000003 ffffc2000123d460 ffff88000681bc00 ffff880006c482c0 [334526.757574] ffff880001191ec0 000000000000000a 0000000000000001 ffffffffa025e7b6 [334526.757574] 0000000000000000 ffff880005cc92a0 ffffffff8023e7b8 0000000000100100 [334526.757574] Call Trace: [334526.757574] [<ffffffffa025e7b6>] ? jfs_lazycommit+0x117/0x24f [jfs] [334526.757574] [<ffffffff8023e7b8>] ? default_wake_function+0x0/0x9 [334526.757574] [<ffffffffa025e69f>] ? jfs_lazycommit+0x0/0x24f [jfs] [334526.757574] [<ffffffff80257181>] ? kthread+0x47/0x73 [334526.757574] [<ffffffff8021229a>] ? child_rip+0xa/0x20 [334526.757574] [<ffffffff8031cf4b>] ? cap_task_setscheduler+0x0/0x2 [334526.757574] [<ffffffff80485af2>] ? _spin_lock+0x5/0x7 [334526.757574] [<ffffffff8025713a>] ? kthread+0x0/0x73 [334526.757574] [<ffffffff80212290>] ? child_rip+0x0/0x20 [334526.757574] Code: d4 ff ff 8b 43 68 85 c0 7f 25 48 c7 c1 a2 38 26 a0 ba ac 03 00 00 48 c7 c6 52 38 26 a0 48 c7 c7 86 38 26 a0 31 c0 e8 90 77 22 e0 <0f> 0b eb fe ff c8 85 c0 89 43 68 75 09 48 8b 7b 58 e8 7b d1 03 [334526.757574] RIP [<ffffffffa025bfe5>] txUnlock+0xb9/0x20f [jfs] [334526.757574] RSP <ffff880001191e80> [334526.792207] ---[ end trace 81bd8eba443c8d0f ]--- -- Bruce Schneier knows at least 0x09f911029d74e35bd84156c5635688c0 other ways to crack HD-DVD encryption. ------------------------------------------------------------------------------ Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. 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