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SubjectRe: 4.16-rc2+git: pata_serverworks: hanging ata detection thread on HP DL380G3
> 4.16 git bootup on HP Proliant DL380 G3 pauses for a a minute or two and 
> then continues with "blocked for more than 120 seconds" message with
> libata detection functions in ther stack -
> async_synchronize_cookie_domain() as the last. It seems to happen during
> IDE CD-ROM detection (detected before but registered as sr0 after the
> warning). After detection, the eject button on the drive did not work.
>
>
> pata_serverworks is the libata driver in use.

This is still the same in 4.16.0-rc7-00062-g0b412605ef5f.

> [ 242.652061] INFO: task kworker/u8:4:613 blocked for more than 120 seconds.
> [ 242.652230] Not tainted 4.16.0-rc2-00374-g3664ce2d9309 #36
> [ 242.654171] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> [ 242.654386] kworker/u8:4 D 0 613 2 0x80000000
> [ 242.654517] Workqueue: events_unbound async_run_entry_fn
> [ 242.654637] Call Trace:
> [ 242.654759] __schedule+0x1bc/0x8d3
> [ 242.654877] ? set_next_entity+0xc1/0x39a
> [ 242.654994] schedule+0x28/0xb2
> [ 242.655096] async_synchronize_cookie_domain+0xac/0xf4
> [ 242.655217] ? __clear_rsb+0x1d/0x32
> [ 242.655334] ? wait_woken+0xb7/0xb7
> [ 242.655449] async_synchronize_cookie+0xd/0x15
> [ 242.655583] async_port_probe+0x57/0x87 [libata]
> [ 242.655703] ? __clear_rsb+0xd/0x32
> [ 242.655825] ? ata_port_probe+0x52/0x52 [libata]
> [ 242.655945] async_run_entry_fn+0x49/0x1f2
> [ 242.656075] process_one_work+0x20a/0x568
> [ 242.656191] worker_thread+0x4c/0x631
> [ 242.656312] kthread+0x140/0x1e4
> [ 242.656428] ? process_one_work+0x568/0x568
> [ 242.656547] ? kthread_create_on_node+0x23/0x23
> [ 242.656667] ret_from_fork+0x2e/0x38
> [ 242.656793] INFO: task systemd-udevd:803 blocked for more than 120 seconds.
> [ 242.656920] Not tainted 4.16.0-rc2-00374-g3664ce2d9309 #36
> [ 242.657039] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> [ 242.657257] systemd-udevd D 0 803 758 0x80000004
> [ 242.657379] Call Trace:
> [ 242.657495] __schedule+0x1bc/0x8d3
> [ 242.657614] ? kfree_skbmem+0x65/0x85
> [ 242.657730] schedule+0x28/0xb2
> [ 242.657846] async_synchronize_cookie_domain+0xac/0xf4
> [ 242.657968] ? wait_woken+0xb7/0xb7
> [ 242.658082] async_synchronize_full+0x14/0x16
> [ 242.658206] do_init_module+0x10f/0x24b
> [ 242.658323] load_module+0x29c9/0x3865
> [ 242.658443] ? kernel_read+0x50/0xa7
> [ 242.658558] SyS_finit_module+0x78/0x8d
> [ 242.658681] do_fast_syscall_32+0xc7/0x323
> [ 242.658800] entry_SYSENTER_32+0x4e/0x7c
> [ 242.658916] EIP: 0xb7f0cad5
> [ 242.659030] EFLAGS: 00000292 CPU: 0
> [ 242.659145] EAX: ffffffda EBX: 0000000d ECX: b7d03bdd EDX: 00000000
> [ 242.659265] ESI: 011ba740 EDI: 011bdb50 EBP: 00000000 ESP: bfcf1bcc
> [ 242.659388] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b
> [ 244.422337] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
> [ 246.012767] tg3 0000:02:01.0 eth0: Link is up at 100 Mbps, full duplex
> [ 246.012875] tg3 0000:02:01.0 eth0: Flow control is off for TX and off for RX
> [ 246.012990] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
> [ 316.432903] scsi 1:0:0:0: Attached scsi generic sg3 type 5
> [ 316.667528] sr 1:0:0:0: [sr0] scsi3-mmc drive: 24x/24x cd/rw xa/form2 cdda tray
> [ 316.667571] cdrom: Uniform CD-ROM driver Revision: 3.20
> [ 316.667837] sr 1:0:0:0: Attached scsi CD-ROM sr0
> [ 4097.814125] random: crng init done
>
>

--
Meelis Roos (mroos@linux.ee)

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