From: Andrew Morton <akpm@linux-foundation.org>
To: mm-commits@vger.kernel.org,kbingham@kernel.org,jan.kiszka@siemens.com,florian.fainelli@broadcom.com,akpm@linux-foundation.org
Subject: + scripts-gdb-de-reference-per-cpu-mce-interrupts.patch added to mm-hotfixes-unstable branch
Date: Wed, 25 Jun 2025 14:20:40 -0700 [thread overview]
Message-ID: <20250625212041.59D33C4CEEA@smtp.kernel.org> (raw)
The patch titled
Subject: scripts/gdb: de-reference per-CPU MCE interrupts
has been added to the -mm mm-hotfixes-unstable branch. Its filename is
scripts-gdb-de-reference-per-cpu-mce-interrupts.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/scripts-gdb-de-reference-per-cpu-mce-interrupts.patch
This patch will later appear in the mm-hotfixes-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Florian Fainelli <florian.fainelli@broadcom.com>
Subject: scripts/gdb: de-reference per-CPU MCE interrupts
Date: Mon, 23 Jun 2025 20:00:19 -0700
The per-CPU MCE interrupts are looked up by reference and need to be
de-referenced before printing, otherwise we print the addresses of the
variables instead of their contents:
MCE: 18379471554386948492 Machine check exceptions
MCP: 18379471554386948488 Machine check polls
The corrected output looks like this instead now:
MCE: 0 Machine check exceptions
MCP: 1 Machine check polls
Link: https://lkml.kernel.org/r/20250625021109.1057046-1-florian.fainelli@broadcom.com
Link: https://lkml.kernel.org/r/20250624030020.882472-1-florian.fainelli@broadcom.com
Fixes: b0969d7687a7 ("scripts/gdb: print interrupts")
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
scripts/gdb/linux/interrupts.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/scripts/gdb/linux/interrupts.py~scripts-gdb-de-reference-per-cpu-mce-interrupts
+++ a/scripts/gdb/linux/interrupts.py
@@ -110,7 +110,7 @@ def x86_show_mce(prec, var, pfx, desc):
pvar = gdb.parse_and_eval(var)
text = "%*s: " % (prec, pfx)
for cpu in cpus.each_online_cpu():
- text += "%10u " % (cpus.per_cpu(pvar, cpu))
+ text += "%10u " % (cpus.per_cpu(pvar, cpu).dereference())
text += " %s\n" % (desc)
return text
_
Patches currently in -mm which might be from florian.fainelli@broadcom.com are
scripts-gdb-fix-dentry_name-lookup.patch
scripts-gdb-fix-interrupts-display-after-mcp-on-x86.patch
scripts-gdb-fix-interruptspy-after-maple-tree-conversion.patch
scripts-gdb-de-reference-per-cpu-mce-interrupts.patch
next reply other threads:[~2025-06-25 21:20 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-25 21:20 Andrew Morton [this message]
-- strict thread matches above, loose matches on Subject: below --
2025-06-24 23:53 + scripts-gdb-de-reference-per-cpu-mce-interrupts.patch added to mm-hotfixes-unstable branch Andrew Morton
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