The patch titled
Subject: mm/vmscan: print err before panic
has been added to the -mm mm-unstable branch. Its filename is
mm-vmscan-print-err-before-panic.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-vmscan-print-err-before-panic.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Angus Chen <angus.chen@xxxxxxxxxxxxxxx>
Subject: mm/vmscan: print err before panic
Date: Wed, 6 Sep 2023 16:37:00 +0800
If panic is enable,the err information will not be printed before bugon,
So swap it. Print the return value of PTR_ERR(pgdat->kswapd) also.
Link: https://lkml.kernel.org/r/20230906083700.181-1-angus.chen@xxxxxxxxxxxxxxx
Signed-off-by: Angus Chen <angus.chen@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmscan.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/mm/vmscan.c~mm-vmscan-print-err-before-panic
+++ a/mm/vmscan.c
@@ -7917,8 +7917,9 @@ void __meminit kswapd_run(int nid)
pgdat->kswapd = kthread_run(kswapd, pgdat, "kswapd%d", nid);
if (IS_ERR(pgdat->kswapd)) {
/* failure at boot is fatal */
+ pr_err("Failed to start kswapd on node %dï¼?ret=%ld\n",
+ nid, PTR_ERR(pgdat->kswapd));
BUG_ON(system_state < SYSTEM_RUNNING);
- pr_err("Failed to start kswapd on node %d\n", nid);
pgdat->kswapd = NULL;
}
}
_
Patches currently in -mm which might be from angus.chen@xxxxxxxxxxxxxxx are
mm-vmscan-print-err-before-panic.patch
