linux-kernel - Re: [PATCH] Info dump on Oops or panic()

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

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <8bd0f97a0706281654r37a3e10cja74a359bf7d425f@mail.gmail.com>
Date:	Thu, 28 Jun 2007 18:54:12 -0500
From:	"Mike Frysinger" <vapier.adi@...il.com>
To:	"Kyle McMartin" <kyle@...artin.ca>
Cc:	"Joshua Wise" <jwise@...gle.com>, linux-kernel@...r.kernel.org,
	akpm@...gle.com, thockin@...gle.com, mikew@...gle.com,
	masouds@...gle.com
Subject: Re: [PATCH] Info dump on Oops or panic()

On 6/28/07, Kyle McMartin <kyle@...artin.ca> wrote:
> On Thu, Jun 28, 2007 at 03:05:56PM -0700, Joshua Wise wrote:
> > --- a/arch/x86_64/kernel/process.c
> > +++ b/arch/x86_64/kernel/process.c
> > @@ -356,6 +356,7 @@ void show_regs(struct pt_regs *regs)
> >       printk("CPU %d:", smp_processor_id());
> >       __show_regs(regs);
> >       show_trace(NULL, regs, (void *)(regs + 1));
> > +     atomic_notifier_call_chain(&info_dumper_list, 0, NULL);
> >  }
> >
>
> woah woah woah. This could push critical bits of the register dump or
> stacktrace off the screen... Barring any other problems with the patch,
> this should probably be dumped in the oops header, not trailing it where
> it could hide critical debugging info.

on the flip side, poorly written chained funcs could oops thus
preventing the good info (like stacktrace) from being shown ...
-mike
-
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/