Date: Wed, 15 Sep 2004 09:18:59 -0500 From: Scot Hetzel <swhetzel@gmail.com> To: freebsd-current@freebsd.org, sos@freebsd.org Subject: Re: 5.3 BETA kernel hangs without debugging options Message-ID: <790a9fff04091507181f3b5860@mail.gmail.com> In-Reply-To: <20040915095304.GC761@galgenberg.net> References: <790a9fff04091500172a40bd13@mail.gmail.com> <20040915095304.GC761@galgenberg.net>
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On Wed, 15 Sep 2004 11:53:04 +0200, Ulrich Spoerlein <spoerlein@informatik.uni-wuerzburg.de> wrote: > On Wed, 15.09.2004 at 02:17:07 -0500, Scot Hetzel wrote: > > I have been trying to track down a problem with the 5.3 BETA4 kernel > > where it would hang after trying to sense my CD ROM drive. I have > > found that disconnecting the CD ROM drive would allow it to boot the > > sos@ committed some fixes for these hangs, but unfortunately it still > happens on my laptop too. The situation is greatly improved, but in 1 > out of ... say 12 reboots the Kernel still hangs at the DVD-detection. > > Someone worked around this by placing a DELAY() somewhere in the code > (can't remember right now, search the archives). It also seems that it > doesn't happen with bootverbose. Turning on debugging seems to avoid it > for you, because the kernel is slower and thus not fast enough to win > the race against the CD-drive (Note: I'm only guessing!). > I just built a BETA4 kernel from the a checked out sources of last night and re-enabled the debugging options. This morning the kernel didn't have any problems booting my system. I'm currently building a kernel without debugging options to see if the problem re-occurs. I'll know if it works in about 8hrs, when I get home from work. Scot
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