Date: Thu, 4 Apr 2013 00:20:02 GMT From: Matthias Andree <mandree@FreeBSD.org> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/157397: [ada] ahci/ada/cam NCQ timeouts on Samsung and non-disable-ability Message-ID: <201304040020.r340K2Sb002845@freefall.freebsd.org>
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The following reply was made to PR kern/157397; it has been noted by GNATS. From: Matthias Andree <mandree@FreeBSD.org> To: bug-followup@FreeBSD.org Cc: Subject: Re: kern/157397: [ada] ahci/ada/cam NCQ timeouts on Samsung and non-disable-ability Date: Thu, 04 Apr 2013 02:18:58 +0200 Further information requested by Jeremy Chadwick, from the -stable/-current lists: > While skimming Linux libata code and commits in the past, the only > glaringly obvious bug/issue I see is with SB600/SB700 chipsets (the > hardware revision apparently matters) and port multiplier (PMP) support > and soft resets. > > Are you using a port multiplier? I doubt it, but I have to ask. I am not using a PMP as far as I know (unless one is buried on my Asus M4A78T-E main board). It would seem the drives are directly attached to the south bridge's SATA ports. >> Why only my Samsung HDD drive triggers this but not the WD drive, I do >> not know yet. > > Please provide "gpart show -p ada1" output, both here and in the PR, > if you could. => 63 1953525105 ada1 MBR (931G) 63 209714337 ada1s1 freebsd [active] (100G) 209714400 800 - free - (400k) 209715200 71680000 ada1s2 ntfs (34G) 281395200 15405 - free - (7.5M) 281410605 488263545 ada1s3 linux-data (232G) 769674150 1183851018 - free - (564G)
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