lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 31 Aug 2011 14:23:48 +1000 From: Anton Blanchard <anton@...ba.org> To: Mahesh J Salgaonkar <mahesh@...ux.vnet.ibm.com> Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>, linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>, Linux Kernel <linux-kernel@...r.kernel.org>, Michael Ellerman <michael@...erman.id.au>, Milton Miller <miltonm@....com>, "Eric W. Biederman" <ebiederm@...ssion.com> Subject: Re: [RFC PATCH 05/10] fadump: Convert firmware-assisted cpu state dump data into elf notes. > diff --git a/kernel/panic.c b/kernel/panic.c > index 6923167..1965b50 100644 > --- a/kernel/panic.c > +++ b/kernel/panic.c > @@ -49,6 +49,15 @@ static long no_blink(int state) > long (*panic_blink)(int state); > EXPORT_SYMBOL(panic_blink); > > +#ifdef CONFIG_FA_DUMP > +/* > + * provide an empty default implementation here -- architecture > + * code may override this > + */ > +void __attribute__ ((weak)) crash_fadump(struct pt_regs *regs, const char *str) > +{} > +#endif > + > /** > * panic - halt the system > * @fmt: The text string to print > @@ -81,6 +90,13 @@ NORET_TYPE void panic(const char * fmt, ...) > dump_stack(); > #endif > > +#ifdef CONFIG_FA_DUMP > + /* > + * If firmware-assisted dump has been registered then trigger > + * firmware-assisted dump and let firmware handle everything else. > + */ > + crash_fadump(NULL, buf); > +#endif > /* > * If we have crashed and we have a crash kernel loaded let it handle > * everything else. Firmware assisted dump is an IBM POWER Systems specific feature and it shouldn't leak into a common file like this. Isn't there an existing hook we can catch like the panic notifier? Anton -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists