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83949613fa
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>
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|---|---|---|
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.