Date: Sat, 1 Oct 2005 09:07:05 GMT From: Konstantin Prokazoff <kp@svr.kiev.ua> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/86779: taskqueue_enqueue_fast uses spinlock on sleep mutex in fbsd-5.4-stable Message-ID: <200510010907.j91975B7089417@www.freebsd.org> Resent-Message-ID: <200510010910.j919AHDt097658@freefall.freebsd.org>
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>Number: 86779 >Category: kern >Synopsis: taskqueue_enqueue_fast uses spinlock on sleep mutex in fbsd-5.4-stable >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sat Oct 01 09:10:17 GMT 2005 >Closed-Date: >Last-Modified: >Originator: Konstantin Prokazoff >Release: 5.4 >Organization: SVR Ltd. >Environment: 5.4-STABLE >Description: SMP on 1xXeon (HT enabled), INTR_FAST handler enqueues task to taskqueue_thread using taskqueue_enqueue_fast. Kernel panics, cause taskqueue_enqueue_fast tries to spinlock sleep mutex taskqueue. >How-To-Repeat: taskqueue_enqueue_fast() in INTR_FAST handler code. >Fix: Not known. >Release-Note: >Audit-Trail: >Unformatted:
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