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Date: Thu, 2 Dec 2010 16:23:46 -0500 From: Kyle McMartin <kyle@...artin.ca> To: Tejun Heo <tj@...nel.org> Cc: Kyle McMartin <kyle@...artin.ca>, Jeff Garzik <jeff@...zik.org>, Andrew Morton <akpm@...ux-foundation.org>, Linus Torvalds <torvalds@...ux-foundation.org>, linux-ide@...r.kernel.org, LKML <linux-kernel@...r.kernel.org> Subject: Re: [git patches] libata updates for 2.6.37 On Thu, Dec 02, 2010 at 11:17:09AM +0100, Tejun Heo wrote: > Hmmm... something is setting EH_PENDING while EH is in progress. > Let's see what's doing it. Can you please apply the following patch > on top of the previous one and report the kernel log? > This gets triggered a bunch on boot-up: [ 36.981370] ata1: XXX SET EH PENDING, fastdrain=0 [ 36.981380] Pid: 0, comm: swapper Not tainted 2.6.37-0.rc4.git1.2.fc15.x86_64 #1 [ 36.981386] Call Trace: [ 36.981393] <IRQ> [<ffffffff8131d3df>] ata_eh_set_pending+0x3e/0x85 [ 36.981407] [<ffffffff8131db36>] ata_do_link_abort+0x44/0x94 [ 36.981412] [<ffffffff8131dbac>] ata_port_abort+0x10/0x12 [ 36.981421] [<ffffffff8132b0ab>] ahci_interrupt+0x467/0x5a1 [ 36.981428] [<ffffffff810afbc1>] ? check_for_new_grace_period.clone.21+0x8b/0x97 [ 36.981434] [<ffffffff8106fb68>] ? sched_clock_cpu+0x42/0xc6 [ 36.981440] [<ffffffff810abbfe>] handle_IRQ_event+0x58/0x122 [ 36.981447] [<ffffffff81024d64>] ? apic_write+0x16/0x18 [ 36.981452] [<ffffffff810adf27>] handle_edge_irq+0xfa/0x145 [ 36.981458] [<ffffffff8100d2dd>] handle_irq+0x88/0x90 [ 36.981463] [<ffffffff8147d508>] do_IRQ+0x58/0xb0 [ 36.981468] [<ffffffff81477513>] ret_from_intr+0x0/0x11 [ 36.981470] <EOI> [<ffffffff81274eab>] ? intel_idle+0x115/0x13d [ 36.981480] [<ffffffff81274e8a>] ? intel_idle+0xf4/0x13d [ 36.981485] [<ffffffff8139f894>] cpuidle_idle_call+0x9e/0x104 [ 36.981489] [<ffffffff8100932e>] cpu_idle+0xae/0x105 [ 36.981493] [<ffffffff8145f2ce>] rest_init+0x72/0x74 [ 36.981498] [<ffffffff81b53c31>] start_kernel+0x3e0/0x3eb [ 36.981503] [<ffffffff81b532cb>] x86_64_start_reservations+0xb6/0xba [ 36.981507] [<ffffffff81b533d5>] x86_64_start_kernel+0x106/0x115 [ 37.200683] ata1: XXX SET EH PENDING, fastdrain=1 [ 37.200692] Pid: 1465, comm: ck-history Not tainted 2.6.37-0.rc4.git1.2.fc15.x86_64 #1 [ 37.200696] Call Trace: [ 37.200699] <IRQ> [<ffffffff8131d3df>] ata_eh_set_pending+0x3e/0x85 [ 37.200715] [<ffffffff8131dae5>] ata_port_schedule_eh+0x43/0x50 [ 37.200720] [<ffffffff813150d7>] ata_qc_complete+0xd2/0x152 [ 37.200723] [<ffffffff8131521d>] ata_qc_complete_multiple+0xc6/0xcb [ 37.200727] [<ffffffff8132b141>] ahci_interrupt+0x4fd/0x5a1 [ 37.200737] [<ffffffff8105c784>] ? run_timer_softirq+0x28f/0x29e [ 37.200742] [<ffffffff810114bb>] ? native_sched_clock+0x35/0x37 [ 37.200747] [<ffffffff8106fb68>] ? sched_clock_cpu+0x42/0xc6 [ 37.200752] [<ffffffff810abbfe>] handle_IRQ_event+0x58/0x122 [ 37.200758] [<ffffffff81024d64>] ? apic_write+0x16/0x18 [ 37.200761] [<ffffffff810adf27>] handle_edge_irq+0xfa/0x145 [ 37.200766] [<ffffffff8100d2dd>] handle_irq+0x88/0x90 [ 37.200769] [<ffffffff8147d508>] do_IRQ+0x58/0xb0 [ 37.200774] [<ffffffff81477513>] ret_from_intr+0x0/0x11 [ 37.200775] <EOI> [<ffffffff81117bd1>] ? lock_page_cgroup+0x19/0x21 [ 37.200783] [<ffffffff811198c2>] __mem_cgroup_commit_charge+0x28/0x97 [ 37.200786] [<ffffffff8111b961>] mem_cgroup_charge_common+0x66/0x76 [ 37.200789] [<ffffffff8111bc89>] mem_cgroup_cache_charge+0xe4/0xf9 [ 37.200794] [<ffffffff810d8cf3>] add_to_page_cache_locked+0x42/0x113 [ 37.200797] [<ffffffff810d8dee>] add_to_page_cache_lru+0x2a/0x58 [ 37.200802] [<ffffffff8114a883>] mpage_readpages+0xa3/0x113 [ 37.200805] [<ffffffff81199b1a>] ? ext4_get_block+0x0/0x18 [ 37.200808] [<ffffffff81199b1a>] ? ext4_get_block+0x0/0x18 [ 37.200811] [<ffffffff810ee22b>] ? zone_statistics+0x65/0x6a [ 37.200816] [<ffffffff8110991a>] ? alloc_pages_current+0xb2/0xc3 [ 37.200821] [<ffffffff811965ec>] ext4_readpages+0x1d/0x1f [ 37.200826] [<ffffffff810e1145>] __do_page_cache_readahead+0x105/0x176 [ 37.200829] [<ffffffff810e141b>] ra_submit+0x21/0x25 [ 37.200831] [<ffffffff810e15db>] ondemand_readahead+0x1bc/0x1cb [ 37.200834] [<ffffffff810e1665>] page_cache_async_readahead+0x7b/0xa3 [ 37.200837] [<ffffffff810d9bbc>] generic_file_aio_read+0x2a5/0x5b6 [ 37.200840] [<ffffffff810e1c10>] ? __lru_cache_add+0x34/0x5b [ 37.200844] [<ffffffff8111f602>] do_sync_read+0xcb/0x108 [ 37.200848] [<ffffffff811ebbdb>] ? fsnotify_perm+0x64/0x70 [ 37.200852] [<ffffffff811ec327>] ? security_file_permission+0x2e/0x33 [ 37.200855] [<ffffffff8111fce5>] vfs_read+0xa9/0xfc [ 37.200857] [<ffffffff8111fd82>] sys_read+0x4a/0x6e [ 37.200860] [<ffffffff8100acc2>] system_call_fastpath+0x16/0x1b [ 37.203575] ata1.00: configured for UDMA/100 [ 37.203582] ata1: EH complete [ 37.239419] sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA [ 38.145358] ata1: XXX SET EH PENDING, fastdrain=1 [ 38.145367] Pid: 1489, comm: sata_alpm Not tainted 2.6.37-0.rc4.git1.2.fc15.x86_64 #1 [ 38.145371] Call Trace: [ 38.145384] [<ffffffff8131d3df>] ata_eh_set_pending+0x3e/0x85 [ 38.145391] [<ffffffff8131dae5>] ata_port_schedule_eh+0x43/0x50 [ 38.145400] [<ffffffff81476f5a>] ? _raw_spin_lock_irqsave+0x12/0x2f [ 38.145406] [<ffffffff8131993b>] ata_scsi_lpm_store+0x89/0xa5 [ 38.145413] [<ffffffff812e3912>] dev_attr_store+0x20/0x22 [ 38.145422] [<ffffffff811798df>] sysfs_write_file+0x114/0x150 [ 38.145430] [<ffffffff8111fbe9>] vfs_write+0xac/0xff [ 38.145436] [<ffffffff8111fdf0>] sys_write+0x4a/0x6e [ 38.145444] [<ffffffff8100acc2>] system_call_fastpath+0x16/0x1b [ 38.145710] ata2: XXX SET EH PENDING, fastdrain=1 [ 38.145718] Pid: 1489, comm: sata_alpm Not tainted 2.6.37-0.rc4.git1.2.fc15.x86_64 #1 [ 38.145723] Call Trace: [ 38.145730] [<ffffffff8131d3df>] ata_eh_set_pending+0x3e/0x85 [ 38.145737] [<ffffffff8131dae5>] ata_port_schedule_eh+0x43/0x50 [ 38.145743] [<ffffffff81476f5a>] ? _raw_spin_lock_irqsave+0x12/0x2f [ 38.145748] [<ffffffff8131993b>] ata_scsi_lpm_store+0x89/0xa5 [ 38.145754] [<ffffffff812e3912>] dev_attr_store+0x20/0x22 [ 38.145760] [<ffffffff811798df>] sysfs_write_file+0x114/0x150 [ 38.145767] [<ffffffff8111fbe9>] vfs_write+0xac/0xff [ 38.145773] [<ffffffff8111fdf0>] sys_write+0x4a/0x6e [ 38.145779] [<ffffffff8100acc2>] system_call_fastpath+0x16/0x1b My whole dmesg from bootup is available at: http://kyle.fedorapeople.org/dmesg There's nothing interesting in my kernel wrt ATA (no patches at all touching it aside from the two from this thread.) Maybe systemd or something during boot-up is poking sysfs, I'll take a look. --Kyle -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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