6.6-stable review patch. If anyone has any objections, please let me know.
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From: Yihang Li liyihang9@huawei.com
commit 4f9eedfa27ae5806ed10906bcceee7bae49c8941 upstream.
If formatting a suspended disk (such as formatting with different DIF type), the disk will be resuming first, and then the format command will submit to the disk through SG_IO ioctl.
When the disk is processing the format command, the system does not submit other commands to the disk. Therefore, the system attempts to suspend the disk again and sends the SYNCHRONIZE CACHE command. However, the SYNCHRONIZE CACHE command will fail because the disk is in the formatting process. This will cause the runtime_status of the disk to error and it is difficult for user to recover it. Error info like:
[ 669.925325] sd 6:0:6:0: [sdg] Synchronizing SCSI cache [ 670.202371] sd 6:0:6:0: [sdg] Synchronize Cache(10) failed: Result: hostbyte=0x00 driverbyte=DRIVER_OK [ 670.216300] sd 6:0:6:0: [sdg] Sense Key : 0x2 [current] [ 670.221860] sd 6:0:6:0: [sdg] ASC=0x4 ASCQ=0x4
To solve the issue, ignore the error and return success/0 when format is in progress.
Cc: stable@vger.kernel.org Signed-off-by: Yihang Li liyihang9@huawei.com Link: https://lore.kernel.org/r/20240819090934.2130592-1-liyihang9@huawei.com Reviewed-by: Bart Van Assche bvanassche@acm.org Reviewed-by: Damien Le Moal dlemoal@kernel.org Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/scsi/sd.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-)
--- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1690,13 +1690,15 @@ static int sd_sync_cache(struct scsi_dis (sshdr.asc == 0x74 && sshdr.ascq == 0x71)) /* drive is password locked */ /* this is no error here */ return 0; + /* - * This drive doesn't support sync and there's not much - * we can do because this is called during shutdown - * or suspend so just return success so those operations - * can proceed. + * If a format is in progress or if the drive does not + * support sync, there is not much we can do because + * this is called during shutdown or suspend so just + * return success so those operations can proceed. */ - if (sshdr.sense_key == ILLEGAL_REQUEST) + if ((sshdr.asc == 0x04 && sshdr.ascq == 0x04) || + sshdr.sense_key == ILLEGAL_REQUEST) return 0; }