Date: Fri, 28 Nov 2014 17:53:26 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 195479] New: mpt(4) on VMware ESXi causes enormous number of SCSI busy errors Message-ID: <bug-195479-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195479 Bug ID: 195479 Summary: mpt(4) on VMware ESXi causes enormous number of SCSI busy errors Product: Base System Version: 10.1-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: nwhitehorn@FreeBSD.org I'm using VMWare ESXi with raw device mappings. During heavy disk I/O, my logs fill (*very* rapidly) with messages like the following: (da14:mpt0:0:15:0): WRITE(10). CDB: 2a 00 19 6c b0 d8 00 00 28 00 (da14:mpt0:0:15:0): CAM status: SCSI Status Error (da14:mpt0:0:15:0): SCSI status: Busy (da14:mpt0:0:15:0): Retrying command (da12:mpt0:0:13:0): WRITE(10). CDB: 2a 00 19 85 46 e0 00 00 20 00 (da12:mpt0:0:13:0): CAM status: SCSI Status Error (da12:mpt0:0:13:0): SCSI status: Busy (da12:mpt0:0:13:0): Retrying command (da13:mpt0:0:14:0): WRITE(10). CDB: 2a 00 19 85 46 e0 00 00 20 00 (da13:mpt0:0:14:0): CAM status: SCSI Status Error (da13:mpt0:0:14:0): SCSI status: Busy (da13:mpt0:0:14:0): Retrying command I see these, simultaneously from every disk in the attached array, at ~ 1 minute intervals. I am assuming VMware is using this code as a signaling mechanism rather than an error, but FreeBSD treats it as an error. If the retry count is exceeded, IO will stop to the disks. -- You are receiving this mail because: You are the assignee for the bug.
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