Messages in this thread | | | From | Andries.Brouwer@cwi ... | Date | Tue, 12 Aug 2003 04:24:30 +0200 (MEST) | Subject | [retry] deadlock (and mailer error) |
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(1) Deadlock
A few hours ago I wrote:
--- Now that I mentioned that inserting usb-storage hangs forever and then causes a SCSI oops, the question arises how the hang is caused. It turns out to be a semaphore deadlock.
What happens is that base/bus.c:bus_add_driver() downs down_write(&bus->subsys.rwsem); and then later usb/core/hub.c:usb_reset_device() downs down_read(&gdev->bus->subsys.rwsem);
This is the same semaphore, and we have a deadlock. ---
(2) Mailer error
but vger didnt like this letter (?) and confusingly answered
--- The following addresses had permanent fatal errors <linux-kernel@vger.kernel.org>
... while talking to vger.kernel.org.: >>> MAIL From:<aeb@hera.cwi.nl.> SIZE=463 <<< 501-5.1.7 For input: <aeb@hera.cwi.nl.> SIZE=463 <<< 501 5.1.7 Path data: Spurious dot (.) at the end of the domain name 501 <linux-kernel@vger.kernel.org>... Data format error <aeb@smtp.cwi.nl>... Deferred: Connection refused by hera.cwi.nl. ---
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