Date: Mon, 16 Aug 2004 21:43:21 -0700 (PDT) From: Don Lewis <truckman@FreeBSD.org> To: current@FreeBSD.org Subject: thoughts on system hangs after panic() Message-ID: <200408170443.i7H4hMYV005062@gw.catspoiler.org>
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I suspect the cause of the system hangs after a panic that are keeping crash dumps from working is one of the shutdown_pre_sync handlers getting wedged. The most likely culprit is syncer_shutdown(), but I think any of the handlers could get wedged in kthread_suspend(). Either we should skip shutdown_pre_sync entirely if RB_NOSYNC is set, or the handlers should obey this bit as appropriate. The latter would require a little more code to be touched, but would allow for more flexibility.
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