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| author | Scott Bauer <scott.bauer@intel.com> | 2018-06-29 13:03:28 -0600 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-07-17 05:46:19 -0700 |
| commit | cf39a6bc342b980f10f344d88035829638a89a48 (patch) | |
| tree | b035f19521ca8abe1ed19584dc732e1470b46d8c /drivers/gpu/drm/imx/imx-ldb.c | |
| parent | b6e44b4c74ef75f729f0147d43d189173fe463c9 (diff) | |
| download | blackbird-op-linux-cf39a6bc342b980f10f344d88035829638a89a48.tar.gz blackbird-op-linux-cf39a6bc342b980f10f344d88035829638a89a48.zip | |
nvme: ensure forward progress during Admin passthru
If the controller supports effects and goes down during the passthru admin
command we will deadlock during namespace revalidation.
[ 363.488275] INFO: task kworker/u16:5:231 blocked for more than 120 seconds.
[ 363.488290] Not tainted 4.17.0+ #2
[ 363.488296] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 363.488303] kworker/u16:5 D 0 231 2 0x80000000
[ 363.488331] Workqueue: nvme-reset-wq nvme_reset_work [nvme]
[ 363.488338] Call Trace:
[ 363.488385] schedule+0x75/0x190
[ 363.488396] rwsem_down_read_failed+0x1c3/0x2f0
[ 363.488481] call_rwsem_down_read_failed+0x14/0x30
[ 363.488504] down_read+0x1d/0x80
[ 363.488523] nvme_stop_queues+0x1e/0xa0 [nvme_core]
[ 363.488536] nvme_dev_disable+0xae4/0x1620 [nvme]
[ 363.488614] nvme_reset_work+0xd1e/0x49d9 [nvme]
[ 363.488911] process_one_work+0x81a/0x1400
[ 363.488934] worker_thread+0x87/0xe80
[ 363.488955] kthread+0x2db/0x390
[ 363.488977] ret_from_fork+0x35/0x40
Fixes: 84fef62d135b6 ("nvme: check admin passthru command effects")
Signed-off-by: Scott Bauer <scott.bauer@intel.com>
Reviewed-by: Keith Busch <keith.busch@linux.intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/gpu/drm/imx/imx-ldb.c')
0 files changed, 0 insertions, 0 deletions
