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32be33747d
When FIO and debugfs snapshot occur concurrently, some SATA I/Os are failed to return to the upper layer due to the setting of HISI_SAS_REJECT_CMD_BIT. Then the SCSI layer invokes the error processing thread. However, sas_ata_hard_reset() in EH also fails to be reset due to the setting of HISI_SAS_REJECT_CMD_BIT. As a result, the device is disabled. Calling scsi_block_requests() in the front of a debugfs snapshot and wait command complete before setting HISI_SAS_REJECT_CMD_BIT to avoid SATA I/O failures. Signed-off-by: Yihang Li <liyihang9@huawei.com> Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Link: https://lore.kernel.org/r/1689045300-44318-3-git-send-email-chenxiang66@hisilicon.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> |
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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.