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| author | Jiayi Li <lijiayi@kylinos.cn> | 2025-05-08 13:59:47 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-05-21 13:09:30 +0200 |
| commit | 19f795591947596b5b9efa86fd4b9058e45786e9 (patch) | |
| tree | a8522993262f8b7bb83abde8200816c7321e9052 /tools/perf/scripts/python/task-analyzer.py | |
| parent | f9bd09ef2c04104a2be718fa8fc3939bb0ba1299 (diff) | |
usb: quirks: Add NO_LPM quirk for SanDisk Extreme 55AE
This device exhibits I/O errors during file transfers due to unstable
link power management (LPM) behavior. The kernel logs show repeated
warm resets and eventual disconnection when LPM is enabled:
[ 3467.810740] hub 2-0:1.0: state 7 ports 6 chg 0000 evt 0020
[ 3467.810740] usb usb2-port5: do warm reset
[ 3467.866444] usb usb2-port5: not warm reset yet, waiting 50ms
[ 3467.907407] sd 0:0:0:0: [sda] tag#12 sense submit err -19
[ 3467.994423] usb usb2-port5: status 02c0, change 0001, 10.0 Gb/s
[ 3467.994453] usb 2-5: USB disconnect, device number 4
The error -19 (ENODEV) occurs when the device disappears during write
operations. Adding USB_QUIRK_NO_LPM disables link power management
for this specific device, resolving the stability issues.
Signed-off-by: Jiayi Li <lijiayi@kylinos.cn>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/20250508055947.764538-1-lijiayi@kylinos.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/task-analyzer.py')
0 files changed, 0 insertions, 0 deletions