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Message-ID: <20230715034811.9665-1-rdunlap@infradead.org>
Date: Fri, 14 Jul 2023 20:48:11 -0700
From: Randy Dunlap <rdunlap@...radead.org>
To: linux-kernel@...r.kernel.org
Cc: Randy Dunlap <rdunlap@...radead.org>,
Jonathan Corbet <corbet@....net>, linux-doc@...r.kernel.org
Subject: [PATCH v2] docs: panic: cleanups for panic params
Move 'panic_print' to its correct place in alphabetical order.
Add parameter format for 'pause_on_oops'.
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Cc: Jonathan Corbet <corbet@....net>
Cc: linux-doc@...r.kernel.org
---
v2: rebase/resend since v1 did not apply cleanly;
Documentation/admin-guide/kernel-parameters.txt | 30 +++++++-------
1 file changed, 15 insertions(+), 15 deletions(-)
diff -- a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -4037,20 +4037,6 @@
timeout < 0: reboot immediately
Format: <timeout>
- panic_print= Bitmask for printing system info when panic happens.
- User can chose combination of the following bits:
- bit 0: print all tasks info
- bit 1: print system memory info
- bit 2: print timer info
- bit 3: print locks info if CONFIG_LOCKDEP is on
- bit 4: print ftrace buffer
- bit 5: print all printk messages in buffer
- bit 6: print all CPUs backtrace (if available in the arch)
- *Be aware* that this option may print a _lot_ of lines,
- so there are risks of losing older messages in the log.
- Use this option carefully, maybe worth to setup a
- bigger log buffer with "log_buf_len" along with this.
-
panic_on_taint= Bitmask for conditionally calling panic() in add_taint()
Format: <hex>[,nousertaint]
Hexadecimal bitmask representing the set of TAINT flags
@@ -4067,6 +4053,20 @@
panic_on_warn=1 panic() instead of WARN(). Useful to cause kdump
on a WARN().
+ panic_print= Bitmask for printing system info when panic happens.
+ User can chose combination of the following bits:
+ bit 0: print all tasks info
+ bit 1: print system memory info
+ bit 2: print timer info
+ bit 3: print locks info if CONFIG_LOCKDEP is on
+ bit 4: print ftrace buffer
+ bit 5: print all printk messages in buffer
+ bit 6: print all CPUs backtrace (if available in the arch)
+ *Be aware* that this option may print a _lot_ of lines,
+ so there are risks of losing older messages in the log.
+ Use this option carefully, maybe worth to setup a
+ bigger log buffer with "log_buf_len" along with this.
+
parkbd.port= [HW] Parallel port number the keyboard adapter is
connected to, default is 0.
Format: <parport#>
@@ -4186,7 +4186,7 @@
mode 0, bit 1 is for mode 1, and so on. Mode 0 only
allowed by default.
- pause_on_oops=
+ pause_on_oops=<int>
Halt all CPUs after the first oops has been printed for
the specified number of seconds. This is to be used if
your oopses keep scrolling off the screen.
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