Date: Wed, 14 Feb 2007 09:14:53 -0800 From: Sam Leffler <sam@errno.com> To: Hugo Silva <hugo@barafranca.com> Cc: freebsd-stable@freebsd.org Subject: Re: Panic: 6.2-STABLE/RELEASE, sysctl (on boot) -- ath related Message-ID: <45D3438D.5010601@errno.com> In-Reply-To: <45D204F0.2070001@barafranca.com> References: <45D204F0.2070001@barafranca.com>
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Hugo Silva wrote: > Hi, > > > While upgrading a fileserver / home wireless access point to > 6.2-RELEASE, it wouldn't come back after the regular > build/installworld/mergemaster procedures. > > I attached a keyboard and monitor to the server and noticed it was > panicking on boot, current process being sysctl: > > > Feb 13 18:27:51 hyperblast kernel: Fatal trap 12: page fault while in > kernel mode > Feb 13 18:27:51 hyperblast kernel: fault virtual address = 0x0 > Feb 13 18:27:51 hyperblast kernel: fault code = supervisor > read, page not present > Feb 13 18:27:51 hyperblast kernel: instruction pointer = 0x20:0xc06fb2a6 > Feb 13 18:27:51 hyperblast kernel: stack pointer = > 0x28:0xd9734ad8 > Feb 13 18:27:51 hyperblast kernel: frame pointer = > 0x28:0xc3383000 > Feb 13 18:27:51 hyperblast kernel: code segment = base 0x0, > limit 0xfffff, type 0x1b > Feb 13 18:27:51 hyperblast kernel: = DPL 0, pres 1, def32 1, gran 1 > Feb 13 18:27:51 hyperblast kernel: processor eflags = interrupt > enabled, resume, IOPL = 0 > Feb 13 18:27:51 hyperblast kernel: current process = 186 > (sysctl) > Feb 13 18:27:51 hyperblast kernel: trap number = 12 > Feb 13 18:27:51 hyperblast kernel: panic: page fault > Feb 13 18:27:51 hyperblast kernel: Uptime: 3s > Feb 13 18:27:51 hyperblast kernel: Cannot dump. No dump device defined. > Feb 13 18:27:51 hyperblast kernel: Automatic reboot in 15 seconds - > press a key on the console to abort > Feb 13 18:27:51 hyperblast kernel: --> Press a key on the console to > reboot, > Feb 13 18:27:51 hyperblast kernel: --> or switch off the system now. > Feb 13 18:27:51 hyperblast kernel: Rebooting... > > > The last line seen before the panic is sysctl adjusting values > (according to sysctl.conf): > > # tail /etc/sysctl.conf > > dev.ath.0.tpscale=1 > dev.ath.0.diversity=0 > > > Now, there are two interesting things to note: > > a) If I uncomment these lines with the system running and reload > (/etc/rc.d/sysctl reload), there's no panic. > > b) It used to work just fine on 6.0-RELEASE-p5. > > > It is not a big deal, but just something that perhaps should be fixed. > > For the records, I tried -RELEASE and -STABLE. Currently running -STABLE > (as of 2007-02-12 @ about 2AM GMT) I think I see the issue; not sure how it worked in previous versions. Thanks for the report. Sam
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