On Wed, 21 Dec 2011 17:47:33 +1100 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote: > I have created today's linux-next tree at > git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git > (patches at http://www.kernel.org/pub/linux/kernel/next/ ). This kernel is seriously busted. Sometime between the Dec 15 tree and the Dec 31 tree someone added something which appears to be causing writes to the (ata_piix controlled) disk to get lost. Processes are getting stuck in D state, usually before it reaches a login prompt. Suspects would be block, ata, scsi and possibly x86/acpi interrupt handling. And no, I'd rather not bisect - it would take ages. If the maintainers of the relevant trees can suggest specific patches to revert then I can take a look at that tomorrow. [ 558.576528] SysRq : Show Blocked State [ 558.576633] task PC stack pid father [ 558.576738] sh D 0000000000000001 0 4701 4700 0x00000080 [ 558.576882] ffff8802493f78b8 0000000000000046 000000014a1121c0 ffff8802493f6010 [ 558.577109] ffff88024a1121c0 00000000001d1100 ffff8802493f7fd8 0000000000004000 [ 558.577336] ffff8802493f7fd8 00000000001d1100 ffff880255db66c0 ffff88024a1121c0 [ 558.577568] Call Trace: [ 558.577623] [<ffffffff81051592>] ? sched_clock_cpu+0xc3/0xd1 [ 558.577679] [<ffffffff81051469>] ? sched_clock_local+0x1c/0x82 [ 558.577736] [<ffffffff81051592>] ? sched_clock_cpu+0xc3/0xd1 [ 558.577793] [<ffffffff810631ae>] ? trace_hardirqs_off+0xd/0xf [ 558.577848] [<ffffffff810515cb>] ? local_clock+0x2b/0x3c [ 558.577905] [<ffffffff813d2744>] schedule+0x55/0x57 [ 558.577960] [<ffffffff813d27cd>] io_schedule+0x87/0xca [ 558.578017] [<ffffffff811a1e72>] get_request_wait+0xbd/0x19e [ 558.578073] [<ffffffff810446a7>] ? wake_up_bit+0x25/0x25 [ 558.578127] [<ffffffff8119e225>] ? elv_merge+0x9a/0xaa [ 558.578182] [<ffffffff811a20cc>] blk_queue_bio+0x179/0x271 [ 558.578238] [<ffffffff811a02a9>] generic_make_request+0x9c/0xde [ 558.578293] [<ffffffff811a03a4>] submit_bio+0xb9/0xc4 [ 558.578348] [<ffffffff810ffcc6>] submit_bh+0xe6/0x108 [ 558.578404] [<ffffffff8110273c>] __block_write_full_page+0x1ec/0x2e3 [ 558.578462] [<ffffffff81101fbe>] ? end_buffer_async_read+0x14b/0x14b [ 558.578518] [<ffffffff811028fb>] block_write_full_page_endio+0xc8/0xcc [ 558.578573] [<ffffffff8110290f>] block_write_full_page+0x10/0x12 [ 558.578631] [<ffffffff811417cd>] ext3_writeback_writepage+0xaa/0x11d [ 558.578690] [<ffffffff810a0ed0>] __writepage+0x15/0x34 [ 558.578744] [<ffffffff810a1913>] write_cache_pages+0x240/0x33e [ 558.578799] [<ffffffff810a0ebb>] ? set_page_dirty+0x65/0x65 [ 558.578855] [<ffffffff81064abf>] ? trace_hardirqs_on+0xd/0xf [ 558.578911] [<ffffffff810a1a54>] generic_writepages+0x43/0x5a [ 558.578967] [<ffffffff810a1a91>] do_writepages+0x26/0x28 [ 558.579022] [<ffffffff8109a8cf>] __filemap_fdatawrite_range+0x4e/0x50 [ 558.579078] [<ffffffff8109aee8>] filemap_flush+0x17/0x19 [ 558.579134] [<ffffffff8113f2c2>] ext3_release_file+0x2e/0xa4 [ 558.579190] [<ffffffff810dbdce>] fput+0x10f/0x1cd [ 558.579244] [<ffffffff810d86e0>] filp_close+0x70/0x7b [ 558.579300] [<ffffffff8102c09b>] put_files_struct+0x16c/0x2c1 [ 558.579356] [<ffffffff8102bf7b>] ? put_files_struct+0x4c/0x2c1 [ 558.579412] [<ffffffff8102c236>] exit_files+0x46/0x4e [ 558.579465] [<ffffffff8102dd2a>] do_exit+0x246/0x73c [ 558.579521] [<ffffffff813d3c4a>] ? retint_swapgs+0xe/0x13 [ 558.579576] [<ffffffff8102e2a4>] do_group_exit+0x84/0xb2 [ 558.579743] [<ffffffff8102e2e4>] sys_exit_group+0x12/0x16 [ 558.579910] [<ffffffff813d9562>] system_call_fastpath+0x16/0x1b -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
