Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: 2.6.19-rc5-mm1: HPC nx6325 breakage, VESA fb problem, md-raid problem | Date | Thu, 9 Nov 2006 16:42:00 +0100 |
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On Thursday, 9 November 2006 02:04, Rafael J. Wysocki wrote: > On Thursday, 9 November 2006 01:55, Andrew Morton wrote: > > On Thu, 9 Nov 2006 01:44:53 +0100 > > "Rafael J. Wysocki" <rjw@sisk.pl> wrote: > > > > > On Thursday, 9 November 2006 01:17, Andrew Morton wrote: > > > > On Thu, 9 Nov 2006 00:31:34 +0100 > > > > "Rafael J. Wysocki" <rjw@sisk.pl> wrote: > > > > > > > > > On Wednesday, 8 November 2006 10:54, Andrew Morton wrote: > > > > > > > > > > > > Temporarily at > > > > > > > > > > > > http://userweb.kernel.org/~akpm/2.6.19-rc5-mm1/ > > > > > > > > > > > > will turn up at > > > > > > > > > > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.19-rc5/2.6.19-rc5-mm1/ > > > > > > > > > > > > when kernel.org mirroring catches up. > > > > > > > > > > > > > > > > > > > > > > > > - Merged the Kernel-based Virtual Machine patches. See kvm.sf.net for > > > > > > userspace tools, instructions, etc. > > > > > > > > > > > > It needs a recent binutils to build. > > > > > > > > > > > > - The hrtimer+dynticks code still doesn't work right for machines which halt > > > > > > their TSC in low-power states. > > > > > > > > > > On my HPC nx6325 it doesn't even reach the point in which the messages become > > > > > visible on the console, so I'm unable to get any debug info from it. > > > > > > > > Nice. You're using earlyprintk? > > > > > > earlyprintk=vga doesn't show anything (ie. blank screen), so it seems to crash > > > really early. > > > > OK, so it's definitely bisection time. > > Well, I've got some data from earlyprintk (forgot I needed to boot with > vga=normal). > > Unfortunately, I had to rewrite the trace manually: > > clear_IO_APIC_pin+0x15/0x6a > try_apic_pin+0x7a/0x98 > setup_IO_APIC+0x600/0xb7a > smp_prepare_cpus+0x33a/0x371 > init+0x60/0x32d > child_rip+0xa/0x12 > > [And then the unwinder said it got stuck.] > > RIP is reported to be at ioapic_read_entry+0x33/0x61,
This is 100% reproducible on the nx6325 (but not on the other boxes) and apparently caused by x86_64-mm-try-multiple-timer-pins.patch (doesn't happen with this patch reverted).
> > > but on the other SMP box the framebuffer is broken > > > (displays all fonts inverted, as in a mirror) > > > > Which fbdev driver? (suspect fbcon-rere-fix-little-endian-bogosity-in-slow_imageblit.patch) > > vga=792
This indeed is caused by fbcon-rere-fix-little-endian-bogosity-in-slow_imageblit.patch which affects two out of three boxes on which I tested it (both have Radeon cards).
> > > and the kernel says it cannot mount the root fs (which is on an md-raid). > > > > hm, there was probably some earlier message which tells us why that > > happened. Doing a capure-and-compare on the dmesg output would be nice > > (netconsole?)
This happens because of md-change-lifetime-rules-for-md-devices.patch and seems to be a universal breakage.
So, in fact there are three different offending patches.
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