Date: Fri, 06 Apr 2018 16:18:04 +0000 From: bugzilla-noreply@freebsd.org To: usb@FreeBSD.org Subject: [Bug 225794] VM images for 12.0-CURRENT have problem with USB 3.0 ports Message-ID: <bug-225794-19105-qHtvL6KRFl@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-225794-19105@https.bugs.freebsd.org/bugzilla/> References: <bug-225794-19105@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=225794 --- Comment #44 from Hans Petter Selasky <hselasky@FreeBSD.org> --- Hi, Try also to exclude the timing of the SCSI commands as a source of USB errors. When you are using bare metal, the commands execute more quickly. Sometimes, it might happen that the USB firmware in the peer has blind eye, which cause it to hang or lose the transferred command. The following sysctl might be useful testing this. hw.usb.umass.throttle: 0 Further there is: /usr/src/tools/tools/usbtest/ Which can be used to test mass storage device to quickly reveal known issues. --HPS -- You are receiving this mail because: You are on the CC list for the bug.
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