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SubjectRe: [RFC Patch 4/6] PANIC_MCE: Introduce a new panic flag for fatal MCE, capture related information
On Thu, May 26, 2011 at 10:45:21PM +0530, K.Prasad wrote:

[..]
> Index: linux-2.6.slim_kdump/arch/x86/kernel/cpu/mcheck/mce.c
> ===================================================================
> --- linux-2.6.slim_kdump.orig/arch/x86/kernel/cpu/mcheck/mce.c
> +++ linux-2.6.slim_kdump/arch/x86/kernel/cpu/mcheck/mce.c
> @@ -258,8 +258,7 @@ static void wait_for_panic(void)
> local_irq_enable();
> while (timeout-- > 0)
> udelay(1);
> - xpanic(PANIC_NO_KEXEC|PANIC_NO_BACKTRACE, 0,
> - "Panicing machine check CPU died");
> + xpanic(PANIC_MCE, 0, NULL, 0, "Panicing machine check CPU died");
> }
>
> static void mce_panic(char *msg, struct mce *final, char *exp)
> @@ -315,8 +314,8 @@ static void mce_panic(char *msg, struct
> if (exp)
> pr_emerg(HW_ERR "Machine check: %s\n", exp);
> if (!fake_panic) {
> - xpanic(PANIC_NO_KEXEC|PANIC_NO_BACKTRACE, mce_panic_timeout,
> - msg);
> + xpanic(PANIC_MCE, mce_panic_timeout, final,
> + sizeof(struct mce), msg);
> } else
> pr_emerg(HW_ERR "Fake kernel panic: %s\n", msg);
> }

In previous patches you introduce PANIC_NO_KEXEC and PANIC_NO_BACKTRACE.
Now in this patch you got rid of those. Are there any other users left
of PANIC_NO_BACKTRACE and PANIC_NO_EXEC? If not, then why to introduce
these to begin with.

Thanks
Vivek


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