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Wen Xiong
fbdac19e64
Setting SCSI logging level with error=3, we saw some errors from enclosues: [108017.360833] ses 0:0:9:0: tag#641 Done: NEEDS_RETRY Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK cmd_age=0s [108017.360838] ses 0:0:9:0: tag#641 CDB: Receive Diagnostic 1c 01 01 00 20 00 [108017.427778] ses 0:0:9:0: Power-on or device reset occurred [108017.427784] ses 0:0:9:0: tag#641 Done: SUCCESS Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s [108017.427788] ses 0:0:9:0: tag#641 CDB: Receive Diagnostic 1c 01 01 00 20 00 [108017.427791] ses 0:0:9:0: tag#641 Sense Key : Unit Attention [current] [108017.427793] ses 0:0:9:0: tag#641 Add. Sense: Bus device reset function occurred [108017.427801] ses 0:0:9:0: Failed to get diagnostic page 0x1 [108017.427804] ses 0:0:9:0: Failed to bind enclosure -19 [108017.427895] ses 0:0:10:0: Attached Enclosure device [108017.427942] ses 0:0:10:0: Attached scsi generic sg18 type 13 Retry if the Send/Receive Diagnostic commands complete with a transient error status (NOT_READY or UNIT_ATTENTION with ASC 0x29). Link: https://lore.kernel.org/r/1631849061-10210-2-git-send-email-wenxiong@linux.ibm.com Reviewed-by: Brian King <brking@linux.ibm.com> Reviewed-by: James Bottomley <jejb@linux.ibm.com> Signed-off-by: Wen Xiong <wenxiong@linux.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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.