On Thu, May 28, 2020 at 10:02:07AM -0500, Zebediah Figura wrote: > On 5/28/20 2:54 AM, Greg KH wrote: > > On Wed, May 27, 2020 at 11:23:13PM -0500, Zebediah Figura wrote: > > > Hello all, > > > > > > I was asked to report this bug here. There's more details in the bug report, > > > but it's been proposed that there's a deadlock between device_reset() in > > > scsiglue.c and usb_stor_control_thread(). > > > > What bug report where? Can you provide a link and the details here in > > the email? > > Oops, meant to link it and forgot. Sorry about that. > > https://bugzilla.kernel.org/show_bug.cgi?id=207877 This doesn't look like a deadlock to me, at least, not a deadlock involving the device reset code. Your next step should be to collect a usbmon trace showing what happens when the problem occurs. See the instructions in Documentation/usb/usbmon.rst. Alan Stern
