From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: ibook2r2 & strange freeze. From: Benjamin Herrenschmidt To: Brice Figureau Cc: "Linuxppc-Dev@Lists. " "Linuxppc. Org" In-Reply-To: <1051284468.2467.179.camel@localhost.localdomain> References: <1051284468.2467.179.camel@localhost.localdomain> Content-Type: text/plain Message-Id: <1051292592.2104.9.camel@gaston> Mime-Version: 1.0 Date: 25 Apr 2003 19:43:12 +0200 Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: > By unstable I mean that the computer completely freeze during boot time, > around the time rc.sysinit is launched. Unfortunately I'm rather new to > linux kernel so I don't know how to provide more information on the > crash (maybe should I configure the kernel with xmon ?). > In a divide&conquer approach I found that the part of rc.sysinit which > 'uploads' the console font to the font layer was triggering the crash. Can you try 2 things and let me know if one of them helps ? - Compile without CPUFREQ support - Use video=radeon:noaccel on the command line to disable acceleration on console > I then re-installed from scratch everything (because I thought there > could have been a fs corruption somewhere which had corrupted the > fonts), but no chance it crashed again. > > I then commented-out this part of rc.sysinit and then I could boot up to > the login prompt. > > But the kernel was still unstable, and still froze at completely random > time (mounting a cdrom, vi'ing some text files, rsyncing a kernel, > compiling the kernel). > > I decided to have a look to the latest devel kernel (namely > 2.4.21-pre7-ben0 and 2.4.21-rc1-ben0) but no chance again, when booted > with video=radeonfb (or with nothing) they're oopsing during the boot (I > can provide more information if needed). With video=ofonly, everything > went smooth. > > As I wasn't sure the crash came from my compiled kernel, I also tried > pre-built kernel from penguinppc.org (the following dmesg output has > been taken from this kernel). This kernel was relatively stable with my > modified rc.sysinit, but failed with the original rc.sysinit. > > So, what should I do to have a stable kernel with radeonfb ? That's interesting. I need to investigate... Ben. ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/