Linux kernel crash dumps for ARM
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From: Russell King on 5 Jan 2010 14:10 On Tue, Jan 05, 2010 at 08:16:28PM +1100, Simon Horman wrote: > To add to this, my understanding is that kexec support varies across > different ARM platforms - that is to say, it works on some and fails on > others. While this seems to be slowly improving, I'm also aware of any list > of what is supported and what isn't. I'm unaware of that; the only area of weakness with kexec that I'm aware of is when the ARMv7 processor support didn't implement the necessary code to bring the caches/mmu/tlbs into a safe state for software-reboot, which is also what's required by kexec. -- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
From: Simon Horman on 5 Jan 2010 17:10
On Tue, Jan 05, 2010 at 07:00:47PM +0000, Russell King wrote: > On Tue, Jan 05, 2010 at 08:16:28PM +1100, Simon Horman wrote: > > To add to this, my understanding is that kexec support varies across > > different ARM platforms - that is to say, it works on some and fails on > > others. While this seems to be slowly improving, I'm also aware of any list > > of what is supported and what isn't. > > I'm unaware of that; the only area of weakness with kexec that I'm > aware of is when the ARMv7 processor support didn't implement the > necessary code to bring the caches/mmu/tlbs into a safe state for > software-reboot, which is also what's required by kexec. Ok, I could well be mistaken and its just ARMv7 that has a few issues at this time. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |