Hi Dave, Sorry it took a few days to get back on this, but I wanted to get some additional testing in before I came back in.
Linus' current git tree crashes on my netra 1405, the same as previous 2.6 kernels. It also crashes on Ferris McCormick's Ultra60. I have tried both with and without the second MEMORY_READ_BARRIER() call commented. Once the crash hit, Ferris was unable to issue sysrq commands from the keyboard. To complicate matters, I built a second Netra 1405 with a similar configuratino (4x440 and 1G ram) but added a keyboard and framebuffer, and I could not trigger the crash. Ferris' Ultra60 also has a keyboard and framebuffer and happily crashes. I also built a T1125 (ultra60) with 2x440 and 1G ram, and I could not convince it to crash. This unit used serial console. Since Ferris' Ultra60 has 2x300, I also tried underclocking to that speed and could not trigger the crash. To further complicate things, and to rule out compiler/toolchain, I used the same binary kernel image on all boxes. I'm trying to kill every variable I can. I guess my next step is to pick up the crashing Netra and throw a framebuffer/keyboard on it, but I think that base has been covered by Ferris' Ultra60. This will take a few days to do. Josh David S. Miller wrote: > From: Josh Grebe <[EMAIL PROTECTED]> > Date: Tue, 30 Aug 2005 10:04:10 -0500 > > >>Well, its a little different now! I crashed very quickly the first >>run, before I commented out that MEMORY_READ_BARRIER(). > > > We really can't be testing the same kernels then. > Mine ran for hours and hours on end, even spamming my > xterms with tar output over the network to my workstation > in parallel. > > Linus's current 2.6.14 GIT tree has all of my fixes in > it, maybe you can test that. > > And if you get a wedge again, please turn on spinlock > debugging, CONFIG_DEBUG_SPINLOCK, because that is how I > got my traces. > > And please do it with a head and keyboard attached so we > can eliminate the sketchy serial console layer as a variable. > - > To unsubscribe from this list: send the line "unsubscribe sparclinux" in > the body of a message to [EMAIL PROTECTED] > More majordomo info at http://vger.kernel.org/majordomo-info.html > > !DSPAM:43149e2d95798517817808! >
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