linux-kernel - [PATCH] Documentation: sysrq: update description about sysrq crash

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Date:   Wed, 10 Mar 2021 03:15:50 +0800
From:   Gao Xiang <hsiangkao@...hat.com>
To:     linux-doc@...r.kernel.org, Jonathan Corbet <corbet@....net>
Cc:     linux-kernel@...r.kernel.org, Gao Xiang <hsiangkao@...hat.com>,
        Matthias Kaehlcke <mka@...omium.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Zefan Li <lizefan.x@...edance.com>
Subject: [PATCH] Documentation: sysrq: update description about sysrq crash

After commit 8341f2f222d7 ("sysrq: Use panic() to force a crash"),
a crash was not generated by dereferencing a NULL pointer anymore.

Let's update documentation as well to make it less misleading.

Cc: Matthias Kaehlcke <mka@...omium.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Jonathan Corbet <corbet@....net>
Cc: Zefan Li <lizefan.x@...edance.com>
Signed-off-by: Gao Xiang <hsiangkao@...hat.com>
---
 Documentation/admin-guide/sysrq.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/admin-guide/sysrq.rst b/Documentation/admin-guide/sysrq.rst
index 67dfa4c29093..60ce5f5ebab6 100644
--- a/Documentation/admin-guide/sysrq.rst
+++ b/Documentation/admin-guide/sysrq.rst
@@ -90,8 +90,8 @@ Command	    Function
 ``b``	    Will immediately reboot the system without syncing or unmounting
             your disks.
 
-``c``	    Will perform a system crash by a NULL pointer dereference.
-            A crashdump will be taken if configured.
+``c``	    Will perform a system crash and a crashdump will be taken
+            if configured.
 
 ``d``	    Shows all locks that are held.
 
-- 
2.27.0