Author: emaste Date: Mon Feb 13 01:44:12 2012 New Revision: 231573 URL: http://svn.freebsd.org/changeset/base/231573
Log: Fix panic after "WARNING - ATA_IDENTIFY taskqueue timeout" When performing a firmware upgrade via atacontrol[1] the subsequent command may time out producing the error message above. When this happens the callout could still be active, and the system would then panic due to a destroyed semaphore. Instead, ensure that the callout is done first, via callout_drain. Note that this fix applies to the "old" ata(4) and so isn't applicable to the default configuration in HEAD. It is still applicable to stable/8. [1] http://lists.freebsd.org/pipermail/freebsd-current/2012-January/031122.html Submitted by: Nima Misaghian Reviewed by: rstone, attilio, mav Obtained from: SVOS MFC after: 3 days Modified: head/sys/dev/ata/ata-queue.c Modified: head/sys/dev/ata/ata-queue.c ============================================================================== --- head/sys/dev/ata/ata-queue.c Mon Feb 13 01:33:39 2012 (r231572) +++ head/sys/dev/ata/ata-queue.c Mon Feb 13 01:44:12 2012 (r231573) @@ -112,6 +112,7 @@ ata_queue_request(struct ata_request *re ATA_DEBUG_RQ(request, "wait for completion"); if (!dumping && sema_timedwait(&request->done, request->timeout * hz * 4)) { + callout_drain(&request->callout); device_printf(request->dev, "WARNING - %s taskqueue timeout " "- completing request directly\n", _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
