linux-kernel - [PATCH] kexec: do not call kmsg

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-next>] [day] [month] [year] [list]

Date:	Fri, 25 Nov 2011 16:19:59 +0800
From:	Dave Young <dyoung@...hat.com>
To:	ebiederm@...ssion.com, kexec@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] kexec: do not call kmsg_dump in crashdump

mtd/ram oops dumper will make more functions envolved. In case crash kexec, 
we should avoid kmsg dumper to ensure crashdump success.

kill kmsg_dump callback while crash dumping 

Signed-off-by: Dave Young <dyoung@...hat.com>
---
 kernel/kexec.c |    2 --
 1 file changed, 2 deletions(-)

--- linux-2.6.orig/kernel/kexec.c	2011-11-18 16:34:18.000000000 +0800
+++ linux-2.6/kernel/kexec.c	2011-11-24 16:05:08.138660500 +0800
@@ -1094,8 +1094,6 @@ void crash_kexec(struct pt_regs *regs)
 		if (kexec_crash_image) {
 			struct pt_regs fixed_regs;
 
-			kmsg_dump(KMSG_DUMP_KEXEC);
-
 			crash_setup_regs(&fixed_regs, regs);
 			crash_save_vmcoreinfo();
 			machine_crash_shutdown(&fixed_regs);
--
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/