Date: Sun, 28 Feb 2016 20:55:34 +0100 From: Harry Schmalzbauer <freebsd@omnilan.de> To: FreeBSD Stable <freebsd-stable@freebsd.org> Subject: ahci-timeout regression in beta3 Message-ID: <56D350B6.6090906@omnilan.de>
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Hello, I have a remote machine with a probably defective ODD, but until r294989 (from Jan 28th) I could boot with just these warnings: (cd1:ahcich1:0:0:0): READ(10). CDB: 28 00 00 38 85 e0 00 00 01 00 (cd1:ahcich1:0:0:0): CAM status: SCSI Status Error (cd1:ahcich1:0:0:0): SCSI status: Check Condition (cd1:ahcich1:0:0:0): SCSI sense: MEDIUM ERROR asc:11,0 (Unrecovered read error) (cd1:ahcich1:0:0:0): Error 5, Unretryable error (cd1:ahcich1:0:0:0): cddone: got error 0x5 back … beta3 doesn't boot anymore, it's hanging with ahci-timeouts: ahcich2: Timeout on slot 11 port 0 ahcich2: is 00000008 cs 00000000 ss 00000000 rs 00000800 tfd 40 derr 00000000 cmd 0004cb17 (ada1:ahcich2:0:0:0): READ_FPDMA_QUEUED. ACB: 60 01 ae a3 50 40 5d 01 00 00 00 00 ... (aprobe0:ahcich2:0:0:0) ATA_IDENTIFY. ACB eec 00 00 00 00 40 00 00 00 00 00 00 (aprobe0:ahcich2:0:0:0) CAM status: Command timeout (aprobe0:ahcich2:0:0:0) Error 5, Retry was blocked ada1 detached ... The numbers (first ACB) and also the channel varies from time to time. I couldn't track down the revision yet, checked r295124 and r295131 so far. Just noticed that probing differs between working (294989) and and non-working revisoin (r296074): The latter attaches cd past ada, the former (working) probes cd first. Will see to find out more until next weekend. Any hints welcome. Thanks, -Harry
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