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Message-ID: <yq1fxcmnpqa.fsf@sermon.lab.mkp.net> Date: Fri, 24 Jul 2009 10:02:37 -0400 From: "Martin K. Petersen" <martin.petersen@...cle.com> To: Tarkan Erimer <tarkan.erimer@...knet.net.tr> Cc: "Martin K. Petersen" <martin.petersen@...cle.com>, linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org, Matthew Wilcox <matthew@....cx> Subject: Re: [BISECTED] Re: [BUG] Linux-2.6.31-rc1 Fails To Recognize Some USB Disks >>>>> "Tarkan" == Tarkan Erimer <tarkan.erimer@...knet.net.tr> writes: Tarkan> Today, I had time to bisect and you were right: The below commit Tarkan> related to capacity detection changes in SCSI subsystem,as you Tarkan> mentioned, seems the cause of the problem. Thanks for bisecting this. Tarkan> Detect non-rotational devices and set the queue flag Tarkan> accordingly. Aha, so you're getting USB resets because your USB-ATA bridge gets confused when we ask it a simple question. What a marvel of modern engineering that thing is... Please send me the output of: sg_inq -e /dev/foo sg_inq -l 16 /dev/foo sg_inq -l 16 -e /dev/foo sg_inq -l 36 /dev/foo sg_inq -l 36 -e /dev/foo sg_vpd -p sv /dev/foo sg_vpd -p bl /dev/foo sg_vpd -p bdc /dev/foo -- Martin K. Petersen Oracle Linux Engineering -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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