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From: bugzilla-daemon@bugzilla.kernel.org
To: linux-scsi@vger.kernel.org
Subject: [Bug 207877] ASMedia drive (174c:55aa) hangs in ioctl CDROM_DRIVE_STATUS when mounting a DVD
Date: Thu, 28 May 2020 19:29:47 +0000	[thread overview]
Message-ID: <bug-207877-11613-XtPwadjrcG@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-207877-11613@https.bugzilla.kernel.org/>

https://bugzilla.kernel.org/show_bug.cgi?id=207877

--- Comment #5 from Zebediah Figura (zfigura@codeweavers.com) ---
Created attachment 289389
  --> https://bugzilla.kernel.org/attachment.cgi?id=289389&action=edit
dmesg (from journalctl -k) including backtrace of hang and usb-storage
debugging

More testing, in response to questions/instructions from the mailing list.

Sometimes mount hangs forever in openat instead. I guess probably some kernel
thread is getting stuck for reasons not directly related to mount, and mount is
hanging as a result.

I built with 5.7-rc7 and CONFIG_USB_STORAGE_DEBUG enabled. I got a hang in
openat; I've attached kernel logs. usbmon shows a similar bulk input transfer
which never completes (even after waiting several minutes); I can attach that
output if it's helpful.

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      parent reply	other threads:[~2020-05-28 19:29 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-24 16:50 [Bug 207877] New: ASMedia drive (174c:55aa) hangs in ioctl CDROM_DRIVE_STATUS when mounting a DVD bugzilla-daemon
2020-05-24 18:30 ` [Bug 207877] " bugzilla-daemon
2020-05-24 20:57 ` bugzilla-daemon
2020-05-24 23:48 ` bugzilla-daemon
2020-05-28 16:28 ` bugzilla-daemon
2020-05-28 19:29 ` bugzilla-daemon [this message]

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