Date: Fri, 22 Jun 2012 21:58:47 +0300 From: Alexander Motin <mav@FreeBSD.org> To: Mike Tancsa <mike@sentex.net> Cc: FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org> Subject: Re: svn commit: r237318 - in stable/8: share/man/man4 sys/cam sys/cam/scsi sys/conf Message-ID: <4FE4C067.1010705@FreeBSD.org> In-Reply-To: <4FE4BC5F.30002@sentex.net> References: <201206201439.q5KEdaF9048424@svn.freebsd.org> <4FE4BC5F.30002@sentex.net>
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On 06/22/12 21:41, Mike Tancsa wrote: > On 6/20/2012 10:39 AM, Alexander Motin wrote: >> Author: mav >> Date: Wed Jun 20 14:39:35 2012 >> New Revision: 237318 >> URL: http://svn.freebsd.org/changeset/base/237318 >> >> Log: >> MFC r236712: >> To make CAM debugging easier, compile in some debug flags (CAM_DEBUG_INFO, >> CAM_DEBUG_CDB, CAM_DEBUG_PERIPH and CAM_DEBUG_PROBE) by default. >> List of these flags can be modified with CAM_DEBUG_COMPILE kernel option. >> CAMDEBUG kernel option still enables all possible debug, if not overriden. >> >> Additional 50KB of kernel size is a good price for the ability to debug >> problems without rebuilding the kernel. In case where size is important, >> debugging can be compiled out by setting CAM_DEBUG_COMPILE option to 0. > > Hi, > Not sure if this is the commit or not, but a kernel from the 18th seems to function normally, and a kernel from today has a great deal of messages like the ones below. I also dont know if this is just exposing an existing bug in the driver that was upto now hidden ? That's not. That's a bit later. > Boot time, I see the following > > (probe1:twa0:0:1:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe1:twa0:0:1:0): CAM status: Invalid Target ID > (probe1:twa0:0:1:0): Error 22, Unretryable error > (probe2:twa0:0:2:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe2:twa0:0:2:0): CAM status: Invalid Target ID > (probe2:twa0:0:2:0): Error 22, Unretryable error > (probe3:twa0:0:3:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe3:twa0:0:3:0): CAM status: Invalid Target ID > (probe3:twa0:0:3:0): Error 22, Unretryable error > (probe4:twa0:0:4:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe4:twa0:0:4:0): CAM status: Invalid Target ID > (probe4:twa0:0:4:0): Error 22, Unretryable error > (probe15:twa0:0:15:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe15:twa0:0:15:0): CAM status: Invalid Target ID > (probe15:twa0:0:15:0): Error 22, Unretryable error > (probe16:twa0:0:16:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe16:twa0:0:16:0): CAM status: Invalid Target ID > (probe16:twa0:0:16:0): Error 22, Unretryable error > (probe17:twa0:0:17:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe17:twa0:0:17:0): CAM status: Invalid Target ID > (probe17:twa0:0:17:0): Error 22, Unretryable error > (probe18:twa0:0:18:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe18:twa0:0:18:0): CAM status: Invalid Target ID > (probe18:twa0:0:18:0): Error 22, Unretryable error > (probe19:twa0:0:19:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe19:twa0:0:19:0): CAM status: Invalid Target ID > (probe19:twa0:0:19:0): Error 22, Unretryable error > (probe20:twa0:0:20:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe20:twa0:0:20:0): CAM status: Invalid Target ID > (probe20:twa0:0:20:0): Error 22, Unretryable error > (probe21:twa0:0:21:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe21:twa0:0:21:0): CAM status: Invalid Target ID > (probe21:twa0:0:21:0): Error 22, Unretryable error > (probe22:twa0:0:22:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe22:twa0:0:22:0): CAM status: Invalid Target ID > (probe22:twa0:0:22:0): Error 22, Unretryable error > (probe23:twa0:0:23:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe23:twa0:0:23:0): CAM status: Invalid Target ID > (probe23:twa0:0:23:0): Error 22, Unretryable error > (probe24:twa0:0:24:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe24:twa0:0:24:0): CAM status: Invalid Target ID > (probe24:twa0:0:24:0): Error 22, Unretryable error > (probe25:twa0:0:25:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe25:twa0:0:25:0): CAM status: Invalid Target ID > (probe25:twa0:0:25:0): Error 22, Unretryable error > (probe26:twa0:0:26:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe26:twa0:0:26:0): CAM status: Invalid Target ID > (probe26:twa0:0:26:0): Error 22, Unretryable error > (probe5:twa0:0:5:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe5:twa0:0:5:0): CAM status: Invalid Target ID > (probe5:twa0:0:5:0): Error 22, Unretryable error > (probe6:twa0:0:6:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe6:twa0:0:6:0): CAM status: Invalid Target ID > (probe6:twa0:0:6:0): Error 22, Unretryable error > (probe7:twa0:0:7:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe7:twa0:0:7:0): CAM status: Invalid Target ID > (probe7:twa0:0:7:0): Error 22, Unretryable error > (probe8:twa0:0:8:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe8:twa0:0:8:0): CAM status: Invalid Target ID > (probe8:twa0:0:8:0): Error 22, Unretryable error > (probe9:twa0:0:9:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe9:twa0:0:9:0): CAM status: Invalid Target ID > (probe9:twa0:0:9:0): Error 22, Unretryable error > (probe10:twa0:0:10:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe10:twa0:0:10:0): CAM status: Invalid Target ID > (probe10:twa0:0:10:0): Error 22, Unretryable error > (probe11:twa0:0:11:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe11:twa0:0:11:0): CAM status: Invalid Target ID > (probe11:twa0:0:11:0): Error 22, Unretryable error > (probe12:twa0:0:12:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe12:twa0:0:12:0): CAM status: Invalid Target ID > (probe12:twa0:0:12:0): Error 22, Unretryable error > (probe13:twa0:0:13:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe13:twa0:0:13:0): CAM status: Invalid Target ID > (probe13:twa0:0:13:0): Error 22, Unretryable error > (probe14:twa0:0:14:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe14:twa0:0:14:0): CAM status: Invalid Target ID > (probe14:twa0:0:14:0): Error 22, Unretryable error > (probe27:twa0:0:27:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe27:twa0:0:27:0): CAM status: Invalid Target ID > (probe27:twa0:0:27:0): Error 22, Unretryable error > (probe28:twa0:0:28:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe28:twa0:0:28:0): CAM status: Invalid Target ID > (probe28:twa0:0:28:0): Error 22, Unretryable error > (probe29:twa0:0:29:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe29:twa0:0:29:0): CAM status: Invalid Target ID > (probe29:twa0:0:29:0): Error 22, Unretryable error > (probe30:twa0:0:30:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe30:twa0:0:30:0): CAM status: Invalid Target ID > (probe30:twa0:0:30:0): Error 22, Unretryable error > (probe31:twa0:0:31:0): INQUIRY. CDB: 12 0 0 0 24 0 > (probe31:twa0:0:31:0): CAM status: Invalid Target ID > (probe31:twa0:0:31:0): Error 22, Unretryable error That is probably bug in a driver. It should return CAM_SEL_TIMEOUT instead of CAM_TID_INVALID for missing devices. You should seen some of these errors even before if booted with verbose messages enabled. > And then with moderate disk activity, > > Jun 22 14:22:57 offsite2 kernel: (da0:twa0:0:0:0): WRITE(10). CDB: 2a 0 18 af 19 e2 0 0 40 0 > Jun 22 14:22:57 offsite2 kernel: (da0:twa0:0:0:0): CAM status: Unconditionally Re-queue Request > Jun 22 14:22:57 offsite2 kernel: (da0:twa0:0:0:0): Retrying command > Jun 22 14:22:57 offsite2 kernel: (da0:twa0:0:0:0): WRITE(10). CDB: 2a 0 18 ad 78 92 0 0 10 0 > Jun 22 14:22:57 offsite2 kernel: (da0:twa0:0:0:0): CAM status: Unconditionally Re-queue Request > Jun 22 14:22:57 offsite2 kernel: (da0:twa0:0:0:0): Retrying command > Jun 22 14:22:58 offsite2 kernel: (da0:twa0:0:0:0): WRITE(10). CDB: 2a 0 18 95 20 ba 0 0 8 0 > Jun 22 14:22:58 offsite2 kernel: (da0:twa0:0:0:0): CAM status: Unconditionally Re-queue Request > Jun 22 14:22:58 offsite2 kernel: (da0:twa0:0:0:0): Retrying command > Jun 22 14:22:59 offsite2 kernel: (da0:twa0:0:0:0): WRITE(10). CDB: 2a 0 18 af 2f e2 0 0 40 0 > Jun 22 14:22:59 offsite2 kernel: (da0:twa0:0:0:0): CAM status: Unconditionally Re-queue Request > Jun 22 14:22:59 offsite2 kernel: (da0:twa0:0:0:0): Retrying command > Jun 22 14:22:59 offsite2 kernel: (da0:twa0:0:0:0): WRITE(10). CDB: 2a 0 18 af 30 62 0 0 40 0 > Jun 22 14:22:59 offsite2 kernel: (da0:twa0:0:0:0): CAM status: Unconditionally Re-queue Request > Jun 22 14:22:59 offsite2 kernel: (da0:twa0:0:0:0): Retrying command That is my fault and it is already fixed at HEAD at r237446. I'll merge it soon. It should be harmless. Sorry. -- Alexander Motin
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