On Fri, May 24, 2019 at 01:33:14PM +0000, Schmid, Carsten wrote: > > On Thu, 23 May 2019, Schmid, Carsten wrote: > > > > > Hi USB maintainers, > > > > > > we recently have seen a problem with usb-storage when trying to read > > from a device. > > > This happened on a 4.14.86 kernel. > > > > > > The kernel's dmesg shows: (log has been submitted via DLT) > > > 1200.862250 kernel: usb 1-3.1: reset high-speed USB device number 10 > > using xhci_hcd > > > 1285.466289 kernel: usb 1-3.1: reset high-speed USB device number 10 > > using xhci_hcd > > > 1291.911286 kernel: usb-storage: Error in queuecommand_lck: us->srb = > > ffff9d66b02e3528 > > > 1292.018079 kernel: usb-storage: Error in queuecommand_lck: us->srb = > > ffff9d66b02e3528 > > > 1292.043073 kernel: usb-storage: Error in queuecommand_lck: us->srb = > > ffff9d66b02e3528 > > > 1292.069078 kernel: usb-storage: Error in queuecommand_lck: us->srb = > > ffff9d66b02e3528 > > > 1292.093066 kernel: usb-storage: Error in queuecommand_lck: us->srb = > > ffff9d66b02e3528 > > > > Since there haven't been any substantive change to usb-storage since > > 4.14 was released, there's a good chance this is a problem with > > xhci-hcd. > > > > Is this problem repeatable? Can you collect a usbmon trace showing > > what happens when the problem occurs? > > > Unfortunately this happened in the field on a test drive. > I don't have access to the device. > So, no, can't be reproduced by now. > > > > There has been a similar bug being fixed in 3.17 kernel series, maybe the > > bug has been re-introduced? > > > https://bugzilla.kernel.org/show_bug.cgi?id=88341 > > > > That is _extremely_ unlikely. > > > Looked into the history of that bug report. > Strange: no fix is menioned. > Reported: 2014-17-11 > Remark on 2019-02-26 > No hint to a real fix. > It simply disappeared ... We do not track USB bugs in bugzilla.kernel.org, so NEVER treat that as the state of anything with regards to USB and Linux, sorry. Ask here on the mailing list instead. The fact that nothing else is shown on that bug is to be expected, and is normal. thanks, greg k-h
