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| author | Marco Elver <elver@google.com> | 2021-11-30 12:44:16 +0100 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2021-12-09 16:42:27 -0800 |
| commit | be3f6967ec5947dd7b2f23bf9d42bb2729889618 (patch) | |
| tree | 8adcbc48ba56834a4dccdbc45134256891b424f2 /Documentation/dev-tools | |
| parent | 3cc21a531252e6693ee989231d5abee6812cfd71 (diff) | |
| download | linux-stable-be3f6967ec5947dd7b2f23bf9d42bb2729889618.tar.gz | |
kcsan: Show location access was reordered to
Also show the location the access was reordered to. An example report:
| ==================================================================
| BUG: KCSAN: data-race in test_kernel_wrong_memorder / test_kernel_wrong_memorder
|
| read-write to 0xffffffffc01e61a8 of 8 bytes by task 2311 on cpu 5:
| test_kernel_wrong_memorder+0x57/0x90
| access_thread+0x99/0xe0
| kthread+0x2ba/0x2f0
| ret_from_fork+0x22/0x30
|
| read-write (reordered) to 0xffffffffc01e61a8 of 8 bytes by task 2310 on cpu 7:
| test_kernel_wrong_memorder+0x57/0x90
| access_thread+0x99/0xe0
| kthread+0x2ba/0x2f0
| ret_from_fork+0x22/0x30
| |
| +-> reordered to: test_kernel_wrong_memorder+0x80/0x90
|
| Reported by Kernel Concurrency Sanitizer on:
| CPU: 7 PID: 2310 Comm: access_thread Not tainted 5.14.0-rc1+ #18
| Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014
| ==================================================================
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'Documentation/dev-tools')
0 files changed, 0 insertions, 0 deletions