Marco Elver be3f6967ec 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>		2021-12-09 16:42:27 -08:00
..
core.c	kcsan: Add core memory barrier instrumentation functions	2021-12-09 16:42:26 -08:00
debugfs.c	kcsan: use u64 instead of cycles_t	2021-07-30 17:09:02 +02:00
encoding.h	kcsan: Add missing license and copyright headers	2021-03-08 14:27:43 -08:00
kcsan.h	kcsan: Add ability to pass instruction pointer of access to reporting	2021-09-13 16:41:19 -07:00
kcsan_test.c	kcsan: Call scoped accesses reordered in reports	2021-12-09 16:42:26 -08:00
Makefile	kcsan: Make test follow KUnit style recommendations	2021-03-08 14:27:43 -08:00
permissive.h	kcsan: permissive: Ignore data-racy 1-bit value changes	2021-07-20 13:49:44 -07:00
report.c	kcsan: Show location access was reordered to	2021-12-09 16:42:27 -08:00
selftest.c	kcsan: selftest: Cleanup and add missing __init	2021-09-13 16:41:20 -07:00