Date: Mon, 21 Sep 2015 20:29:29 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 203166] [wbwd][patch] Stop watchdog timer in attach routine if it is already started Message-ID: <bug-203166-8-mAHOEj8rID@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-203166-8@https.bugs.freebsd.org/bugzilla/> References: <bug-203166-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203166 --- Comment #1 from Ed Maste <emaste@freebsd.org> --- We definitely need something like this change. I'm a little worried that this introduces a window in normal operation though where the watchdog is ineffective, between wbwd attach and watchdogd starting up. For example we may have a driver which intermittently hangs in attach, and we'd want the watchdog to reset the system in that case. A few ideas from IRC discussion: - we could pat the watchdog once at attach time so that we don't reboot in cases where multiuser system startup takes a while after wbwd attaching - watchdog disabling could happen when the system enters single user mode - we ought to have a tunable or other configuration to control this, as some system vendors etc. may not want the watchdog disabled In any case I think it's probably better to have this change than not. -- You are receiving this mail because: You are the assignee for the bug.
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