mirror of
https://github.com/SCST-project/scst.git
synced 2026-05-19 19:51:27 +00:00
05cc5a7aab
NVMEAsync command is being submitted to QLA while the same NVMe controller
is in the middle of reset. The reset path has deleted the association and
freed aen_op->fcp_req.private. Add a check for this private pointer before
issuing the command.
...
6 [ffffb656ca11fce0] page_fault at ffffffff8c00114e
[exception RIP: qla_nvme_post_cmd+394]
RIP: ffffffffc0d012ba RSP: ffffb656ca11fd98 RFLAGS: 00010206
RAX: ffff8fb039eda228 RBX: ffff8fb039eda200 RCX: 00000000000da161
RDX: ffffffffc0d4d0f0 RSI: ffffffffc0d26c9b RDI: ffff8fb039eda220
RBP: 0000000000000013 R8: ffff8fb47ff6aa80 R9: 0000000000000002
R10: 0000000000000000 R11: ffffb656ca11fdc8 R12: ffff8fb27d04a3b0
R13: ffff8fc46dd98a58 R14: 0000000000000000 R15: ffff8fc4540f0000
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
7 [ffffb656ca11fe08] nvme_fc_start_fcp_op at ffffffffc0241568 [nvme_fc]
8 [ffffb656ca11fe50] nvme_fc_submit_async_event at ffffffffc0241901 [nvme_fc]
9 [ffffb656ca11fe68] nvme_async_event_work at ffffffffc014543d [nvme_core]
10 [ffffb656ca11fe98] process_one_work at ffffffff8b6cd437
11 [ffffb656ca11fed8] worker_thread at ffffffff8b6cdcef
12 [ffffb656ca11ff10] kthread at ffffffff8b6d3402
13 [ffffb656ca11ff50] ret_from_fork at ffffffff8c000255
--
PID: 37824 TASK: ffff8fb033063d80 CPU: 20 COMMAND: "kworker/u97:451"
0 [ffffb656ce1abc28] __schedule at ffffffff8be629e3
1 [ffffb656ce1abcc8] schedule at ffffffff8be62fe8
2 [ffffb656ce1abcd0] schedule_timeout at ffffffff8be671ed
3 [ffffb656ce1abd70] wait_for_completion at ffffffff8be639cf
4 [ffffb656ce1abdd0] flush_work at ffffffff8b6ce2d5
5 [ffffb656ce1abe70] nvme_stop_ctrl at ffffffffc0144900 [nvme_core]
6 [ffffb656ce1abe80] nvme_fc_reset_ctrl_work at ffffffffc0243445 [nvme_fc]
7 [ffffb656ce1abe98] process_one_work at ffffffff8b6cd437
8 [ffffb656ce1abed8] worker_thread at ffffffff8b6cdb50
9 [ffffb656ce1abf10] kthread at ffffffff8b6d3402
10 [ffffb656ce1abf50] ret_from_fork at ffffffff8c000255
Link: https://lore.kernel.org/r/20200806111014.28434-10-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
See also upstream commit 83949613fac61e8e37eadf8275bf072342302f4e.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9136 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Overview
This is the source code repository of the SCST project. SCST is a collection of Linux kernel drivers that implement SCSI target functionality. The SCST project includes:
- The SCST core in the scst/ subdirectory.
- A tool for loading, saving and modifying the SCST configuration in directory scstadmin/.
- Several SCSI target drivers in the directories iscsi-scst/, qla2x00t/, srpt/, scst_local/ and fcst/.
- User space programs in the usr/ subdirectory, e.g. fileio_tgt.
- Various documentation in the doc/ subdirectory.
Instructions for building and installing SCST are available in the INSTALL.md file.
QLogic target driver
Two QLogic target drivers are included in the SCST project. The driver in the qla2x00t directory is a very stable driver that supports up to 16 Gb/s adapters. It is very stable, well tested and actively used in many production setups.
There is also a newer driver that supports 32 Gb/s FC in the qla2x00t-32gbit directory. That driver has not yet reached the same maturity level as the old qla2x00t driver.
Vladislav Bolkhovitin vst@vlnb.net, http://scst.sourceforge.net