From: sashiko-bot@kernel.org
To: "Dapeng Mi" <dapeng1.mi@linux.intel.com>
Cc: linux-perf-users@vger.kernel.org
Subject: Re: [Patch v2 1/5] perf tests: Skip zero sample IP in object-code reading test
Date: Mon, 09 Nov 2026 00:55:47 +0000 [thread overview]
Message-ID: <sashiko-outbox-204264@kernel.org> (raw)
In-Reply-To: <20261109004402.1403713-2-dapeng1.mi@linux.intel.com>
> The kernel may clear the sample IP to 0 when a user-space address is
> expected but a kernel address is sampled due to hardware skid. A zero
> sample IP causes the object-code reading test to fail incorrectly.
>
> Skip zero sample IP values in the object-code reading test to avoid
> false-positive failures.
>
> Reported-by: kernel test robot <yi1.lai@intel.com>
> Closes: https://lore.kernel.org/oe-lkp/202609151503.cb02f753-lkp@intel.com
> Fixes: 166f10836a65 ("perf/core: Fix kernel register info leak via hardware skid")
> Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Sashiko has reviewed this patch and found no issues.
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261109004402.1403713-1-dapeng1.mi@linux.intel.com?part=1
next prev parent reply other threads:[~2026-11-09 0:55 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-09 0:43 [Patch v2 0/5] perf: fix test error and improve c2c memory-region display Dapeng Mi
2026-11-09 0:43 ` [Patch v2 1/5] perf tests: Skip zero sample IP in object-code reading test Dapeng Mi
2026-11-09 0:55 ` sashiko-bot [this message]
2026-11-09 0:43 ` [Patch v2 2/5] perf c2c: Fix top-level histogram ownership check Dapeng Mi
2026-11-09 0:55 ` sashiko-bot
2026-11-09 0:44 ` [Patch v2 3/5] perf c2c: Show memory region in the per-cacheline view Dapeng Mi
2026-11-09 0:59 ` sashiko-bot
2026-11-09 0:44 ` [Patch v2 4/5] perf c2c: Show all memory regions in the region column Dapeng Mi
2026-11-09 0:59 ` sashiko-bot
2026-11-09 0:44 ` [Patch v2 5/5] perf c2c: Rename "Region" column to "Range" for consistency Dapeng Mi
2026-11-09 1:09 ` sashiko-bot
2026-11-09 1:32 ` Mi, Dapeng
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