-----Original Message----- From: Martin K. Petersen [mailto:martin.petersen@xxxxxxxxxx] Sent: Thursday, November 28, 2013 8:00 AM To: Justin Piszcz Cc: open list; linux-ext4@xxxxxxxxxxxxxxx; linux-scsi@xxxxxxxxxxxxxxx Subject: Re: 3.12.0: sda2: WRITE SAME failed. Manually zeroing. with 3w-xxxx driver >>>>> "Justin" == Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx> writes: Justin> Relevant logs: [178339.353519] 3w-sas: scsi0: ERROR: Justin> (0x03:0x0101): Invalid command opcode:opcode=0x41. Justin> [178339.353565] sda2: WRITE SAME failed. Manually zeroing. Justin> Is this something I should be worried about? No, it just means that your 3ware controller does not handle the WRITE SAME command and we fall back to manually writing out zeroes. I posted a patch a while back that prevents WRITE SAME being issued for controllers that do not pass the commands through to disk directly: http://marc.info/?l=linux-scsi&m=138252394614920&w=2 [ .. ] Awesome, thank you! This patch is over a month old, do you know if is currently in mainline? I'll also update my case with 3ware/LSI. Justin. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
