This is a note to let you know that I've just added the patch titled
parisc: Prevent hung tasks when printing inventory on serial console
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
parisc-prevent-hung-tasks-when-printing-inventory-on-serial-console.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From c8708d758e715c3824a73bf0cda97292b52be44d Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@xxxxxx>
Date: Fri, 19 Jan 2024 21:16:39 +0100
Subject: parisc: Prevent hung tasks when printing inventory on serial console
From: Helge Deller <deller@xxxxxx>
commit c8708d758e715c3824a73bf0cda97292b52be44d upstream.
Printing the inventory on a serial console can be quite slow and thus may
trigger the hung task detector (CONFIG_DETECT_HUNG_TASK=y) and possibly
reboot the machine. Adding a cond_resched() prevents this.
Signed-off-by: Helge Deller <deller@xxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # v6.0+
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/parisc/kernel/drivers.c | 3 +++
1 file changed, 3 insertions(+)
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -1003,6 +1003,9 @@ static __init int qemu_print_iodc_data(s
pr_info("\n");
+ /* Prevent hung task messages when printing on serial console */
+ cond_resched();
+
pr_info("#define HPA_%08lx_DESCRIPTION \"%s\"\n",
hpa, parisc_hardware_description(&dev->id));
Patches currently in stable-queue which might be from deller@xxxxxx are
queue-6.1/parisc-prevent-hung-tasks-when-printing-inventory-on-serial-console.patch
