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| author | Ricardo Ribalda <ribalda@chromium.org> | 2022-11-28 23:16:48 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-04 11:26:27 +0100 |
| commit | f13acee780cedb3e06a6dadf64d9104cccd2b9fc (patch) | |
| tree | 93bbd108532ae66ed7ccd76da6fe66dbd2e4ce32 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | 38b9415abbd703438ebbc6fb74990bd0fbddc5b9 (diff) | |
iommu/mediatek: Fix crash on isr after kexec()
[ Upstream commit 00ef8885a945c37551547d8ac8361cacd20c4e42 ]
If the system is rebooted via isr(), the IRQ handler might
be triggered before the domain is initialized. Resulting on
an invalid memory access error.
Fix:
[ 0.500930] Unable to handle kernel read from unreadable memory at virtual address 0000000000000070
[ 0.501166] Call trace:
[ 0.501174] report_iommu_fault+0x28/0xfc
[ 0.501180] mtk_iommu_isr+0x10c/0x1c0
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/20221125-mtk-iommu-v2-0-e168dff7d43e@chromium.org
[ joro: Fixed spelling in commit message ]
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions