--- On Wed, 8/26/09, Daniel Drake <[email protected]> wrote:
> From: Daniel Drake <[email protected]> > Subject: Re: New F11 for the XO-1 Build 6 > To: "Yioryos Asprobounitis" <[email protected]> > Cc: [email protected], "OLPC Testing" <[email protected]>, "OLPC > Development" <[email protected]>, "sugar-devel" > <[email protected]>, "Fedora OLPC List" > <[email protected]>, "Mitch Bradley" <[email protected]> > Date: Wednesday, August 26, 2009, 11:16 PM > 2009/8/27 Yioryos Asprobounitis > <[email protected]>: > > I had this issue with os5 (see "...-swap" posts above > in the fedora-olpc-list). It is something not related to > swap but is happening often enough. Usually after 1-3 > attempts removing all peripherals (and overclocking :) > recovers and boots fine. Didn't have it with os6 yet. > > Of course the old firmware does not help either :) > > If it's freezing after the "loading ramdisk" line, then > it's not > related to swap. That's way too early for swap to be having > an effect. > > http://dev.laptop.org/ticket/9100 > > I also see this bug very often and work around it simply by > turning > off the machine for 5 minutes and trying again. Here are my > findings > so far: > > - nothing is output from the kernel on the serial console, > so it is a > very early freeze from the kernel standpoint > - the serial console does show a newline character *after* > the > "loading ramdisk" line, which seems to indicate that the > ramdisk does > load correctly and the crash is triggered by something that > happens > after > - the OFW frame key does not cause the debugger to start > - waiting a few minutes does seem to increase success rate > - I have > had very little success with on,off,on,off,on,off type > cycles, but if > you insert a few minutes wait inbetween then it does feel > to be more > likely to boot > - once booted, you can reboot indefinitely and it won't > hang > - I discount reports that this is related to external > devices, swap > partitions, etc. I run my XOs with the standard > configuration and no > external devices and I frequently see this bug > - I've seen this ever since we upgraded kernel after 8.2 > - the 8.2 kernels continue to work fine > > Daniel I subscribe 100% to your description. Actually when I say "1-3 attempts" I imply the old crash practice: Power off-"count 30 elephants"-power on :) I guess the olpc-aware kernels may not be fully aware of olpc... How do you debug these *sooo* early things???... > _______________________________________________ Testing mailing list [email protected] http://lists.laptop.org/listinfo/testing
