* Unexpected lockdep selftest failures
@ 2024-11-22 20:18 Bart Van Assche
2024-11-24 21:33 ` Palmer Dabbelt
2024-11-26 22:23 ` Boqun Feng
0 siblings, 2 replies; 4+ messages in thread
From: Bart Van Assche @ 2024-11-22 20:18 UTC (permalink / raw)
To: Peter Zijlstra, Ingo Molnar, Will Deacon, Waiman Long; +Cc: linux-kernel
Hi,
With the for-next branch of this tree: git://git.kernel.dk/linux-block
(commit 12ab2c13ca77 ("Merge branch 'for-6.13/block' into for-next")) I
see the following:
[ 0.887603][ T0]
--------------------------------------------------------------------------
[ 0.888763][ T0] | Wound/wait tests |
[ 0.889310][ T0] ---------------------
[ 0.889867][ T0] ww api failures: ok |FAILED|
ok |
[ 0.892597][ T0] ww contexts mixing: ok | ok |
[ 0.894638][ T0] finishing ww context: ok | ok |
ok | ok |
[ 0.898020][ T0] locking mismatches: ok | ok |
ok |
[ 0.900689][ T0] EDEADLK handling: ok | ok |
ok | ok | ok | ok | ok | ok | ok | ok |
[ 0.908172][ T0] spinlock nest unlocked: ok |
[ 0.909484][ T0] spinlock nest test: ok |
[ 0.910902][ T0]
-----------------------------------------------------
[ 0.911824][ T0] |block | try
|context|
[ 0.912970][ T0]
-----------------------------------------------------
[ 0.913890][ T0] context: ok | ok |
ok |
[ 0.916613][ T0] try: ok | ok |
ok |
[ 0.919235][ T0] block: ok | ok |
ok |
[ 0.921852][ T0] spinlock: ok | ok
|FAILED|
[ 0.924666][ T0]
--------------------------------------------------------------------------
[ 0.925852][ T0] | queued read lock tests |
[ 0.926506][ T0] ---------------------------
[ 0.927132][ T0] hardirq read-lock/lock-read: ok |
[ 0.928496][ T0] hardirq lock-read/read-lock: ok |
[ 0.929860][ T0] hardirq inversion: ok |
[ 0.931269][ T0] --------------------
[ 0.931827][ T0] | fs_reclaim tests |
[ 0.932383][ T0] --------------------
[ 0.932932][ T0] correct nesting: ok |
[ 0.934252][ T0] wrong nesting: ok |
[ 0.935518][ T0] protected nesting: ok |
[ 0.936784][ T0]
--------------------------------------------------------------------------
[ 0.937936][ T0] | wait context tests |
[ 0.938516][ T0]
--------------------------------------------------------------------------
[ 0.939661][ T0] | rcu | raw |
spin |mutex |
[ 0.940646][ T0]
--------------------------------------------------------------------------
[ 0.941798][ T0] in hardirq context: ok | ok |
ok | ok |
[ 0.944946][ T0] in hardirq context (not threaded): ok | ok |
ok | ok |
[ 0.948072][ T0] in softirq context: ok | ok |
ok | ok |
[ 0.951206][ T0] in RCU context: ok | ok |
ok | ok |
[ 0.954345][ T0] in RCU-bh context: ok | ok |
ok | ok |
[ 0.957477][ T0] in RCU-sched context: ok | ok |
ok | ok |
[ 0.960612][ T0] in RAW_SPINLOCK context: ok | ok |
ok | ok |
[ 0.963927][ T0] in SPINLOCK context: ok | ok |
ok | ok |
[ 0.967252][ T0] in MUTEX context: ok | ok |
ok | ok |
[ 0.970571][ T0]
--------------------------------------------------------------------------
[ 0.971702][ T0] | local_lock tests |
[ 0.972422][ T0] ---------------------
[ 0.972965][ T0] local_lock inversion 2: ok |
[ 0.974319][ T0] local_lock inversion 3A: ok |
[ 0.975708][ T0] local_lock inversion 3B: ok |
[ 0.977106][ T0] hardirq_unsafe_softirq_safe: ok |
[ 0.978595][ T0]
--------------------------------------------------------------------------
[ 0.979723][ T0] | lockdep_set_subclass() name test|
[ 0.980424][ T0] -----------------------------------
[ 0.981123][ T0] compare name before and after: ok |
[ 0.982423][ T0]
-----------------------------------------------------------------
[ 0.983434][ T0] BUG: 2 unexpected failures (out of 395) -
debugging disabled! |
[ 0.984441][ T0]
-----------------------------------------------------------------
Is this a known issue?
Thanks,
Bart.
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: Unexpected lockdep selftest failures 2024-11-22 20:18 Unexpected lockdep selftest failures Bart Van Assche @ 2024-11-24 21:33 ` Palmer Dabbelt 2024-11-26 22:23 ` Boqun Feng 1 sibling, 0 replies; 4+ messages in thread From: Palmer Dabbelt @ 2024-11-24 21:33 UTC (permalink / raw) To: bvanassche; +Cc: peterz, mingo, Will Deacon, longman, linux-kernel On Fri, 22 Nov 2024 12:18:40 PST (-0800), bvanassche@acm.org wrote: > Hi, > > With the for-next branch of this tree: git://git.kernel.dk/linux-block > (commit 12ab2c13ca77 ("Merge branch 'for-6.13/block' into for-next")) I > see the following: > > > [ 0.887603][ T0] > -------------------------------------------------------------------------- > [ 0.888763][ T0] | Wound/wait tests | > [ 0.889310][ T0] --------------------- > [ 0.889867][ T0] ww api failures: ok |FAILED| > ok | > [ 0.892597][ T0] ww contexts mixing: ok | ok | > [ 0.894638][ T0] finishing ww context: ok | ok | > ok | ok | > [ 0.898020][ T0] locking mismatches: ok | ok | > ok | > [ 0.900689][ T0] EDEADLK handling: ok | ok | > ok | ok | ok | ok | ok | ok | ok | ok | > [ 0.908172][ T0] spinlock nest unlocked: ok | > [ 0.909484][ T0] spinlock nest test: ok | > [ 0.910902][ T0] > ----------------------------------------------------- > [ 0.911824][ T0] |block | try > |context| > [ 0.912970][ T0] > ----------------------------------------------------- > [ 0.913890][ T0] context: ok | ok | > ok | > [ 0.916613][ T0] try: ok | ok | > ok | > [ 0.919235][ T0] block: ok | ok | > ok | > [ 0.921852][ T0] spinlock: ok | ok > |FAILED| > [ 0.924666][ T0] > -------------------------------------------------------------------------- > [ 0.925852][ T0] | queued read lock tests | > [ 0.926506][ T0] --------------------------- > [ 0.927132][ T0] hardirq read-lock/lock-read: ok | > [ 0.928496][ T0] hardirq lock-read/read-lock: ok | > [ 0.929860][ T0] hardirq inversion: ok | > [ 0.931269][ T0] -------------------- > [ 0.931827][ T0] | fs_reclaim tests | > [ 0.932383][ T0] -------------------- > [ 0.932932][ T0] correct nesting: ok | > [ 0.934252][ T0] wrong nesting: ok | > [ 0.935518][ T0] protected nesting: ok | > [ 0.936784][ T0] > -------------------------------------------------------------------------- > [ 0.937936][ T0] | wait context tests | > [ 0.938516][ T0] > -------------------------------------------------------------------------- > [ 0.939661][ T0] | rcu | raw | > spin |mutex | > [ 0.940646][ T0] > -------------------------------------------------------------------------- > [ 0.941798][ T0] in hardirq context: ok | ok | > ok | ok | > [ 0.944946][ T0] in hardirq context (not threaded): ok | ok | > ok | ok | > [ 0.948072][ T0] in softirq context: ok | ok | > ok | ok | > [ 0.951206][ T0] in RCU context: ok | ok | > ok | ok | > [ 0.954345][ T0] in RCU-bh context: ok | ok | > ok | ok | > [ 0.957477][ T0] in RCU-sched context: ok | ok | > ok | ok | > [ 0.960612][ T0] in RAW_SPINLOCK context: ok | ok | > ok | ok | > [ 0.963927][ T0] in SPINLOCK context: ok | ok | > ok | ok | > [ 0.967252][ T0] in MUTEX context: ok | ok | > ok | ok | > [ 0.970571][ T0] > -------------------------------------------------------------------------- > [ 0.971702][ T0] | local_lock tests | > [ 0.972422][ T0] --------------------- > [ 0.972965][ T0] local_lock inversion 2: ok | > [ 0.974319][ T0] local_lock inversion 3A: ok | > [ 0.975708][ T0] local_lock inversion 3B: ok | > [ 0.977106][ T0] hardirq_unsafe_softirq_safe: ok | > [ 0.978595][ T0] > -------------------------------------------------------------------------- > [ 0.979723][ T0] | lockdep_set_subclass() name test| > [ 0.980424][ T0] ----------------------------------- > [ 0.981123][ T0] compare name before and after: ok | > [ 0.982423][ T0] > ----------------------------------------------------------------- > [ 0.983434][ T0] BUG: 2 unexpected failures (out of 395) - > debugging disabled! | > [ 0.984441][ T0] > ----------------------------------------------------------------- > > > Is this a known issue? I just ran into these as well. Looks like there's some discussion over here <https://lore.kernel.org/all/Zw19sMtnKdyOVQoh@boqun-archlinux/>, I'm trying to proposed fixes locally... > > Thanks, > > Bart. ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Unexpected lockdep selftest failures 2024-11-22 20:18 Unexpected lockdep selftest failures Bart Van Assche 2024-11-24 21:33 ` Palmer Dabbelt @ 2024-11-26 22:23 ` Boqun Feng 2024-11-27 7:17 ` Thomas Hellström 1 sibling, 1 reply; 4+ messages in thread From: Boqun Feng @ 2024-11-26 22:23 UTC (permalink / raw) To: Bart Van Assche Cc: Peter Zijlstra, Ingo Molnar, Will Deacon, Waiman Long, linux-kernel, Thomas Hellström Hi, On Fri, Nov 22, 2024 at 12:18:40PM -0800, Bart Van Assche wrote: > Hi, > > With the for-next branch of this tree: git://git.kernel.dk/linux-block > (commit 12ab2c13ca77 ("Merge branch 'for-6.13/block' into for-next")) I > see the following: > > > [ 0.887603][ T0] > -------------------------------------------------------------------------- > [ 0.888763][ T0] | Wound/wait tests | > [ 0.889310][ T0] --------------------- > [ 0.889867][ T0] ww api failures: ok |FAILED| ok > | > [ 0.892597][ T0] ww contexts mixing: ok | ok | > [ 0.894638][ T0] finishing ww context: ok | ok | ok > | ok | > [ 0.898020][ T0] locking mismatches: ok | ok | ok > | > [ 0.900689][ T0] EDEADLK handling: ok | ok | ok > | ok | ok | ok | ok | ok | ok | ok | > [ 0.908172][ T0] spinlock nest unlocked: ok | > [ 0.909484][ T0] spinlock nest test: ok | > [ 0.910902][ T0] ----------------------------------------------------- > [ 0.911824][ T0] |block | try > |context| > [ 0.912970][ T0] ----------------------------------------------------- > [ 0.913890][ T0] context: ok | ok | ok > | > [ 0.916613][ T0] try: ok | ok | ok > | > [ 0.919235][ T0] block: ok | ok | ok > | > [ 0.921852][ T0] spinlock: ok | ok > |FAILED| > [ 0.924666][ T0] > -------------------------------------------------------------------------- > [ 0.925852][ T0] | queued read lock tests | > [ 0.926506][ T0] --------------------------- > [ 0.927132][ T0] hardirq read-lock/lock-read: ok | > [ 0.928496][ T0] hardirq lock-read/read-lock: ok | > [ 0.929860][ T0] hardirq inversion: ok | > [ 0.931269][ T0] -------------------- > [ 0.931827][ T0] | fs_reclaim tests | > [ 0.932383][ T0] -------------------- > [ 0.932932][ T0] correct nesting: ok | > [ 0.934252][ T0] wrong nesting: ok | > [ 0.935518][ T0] protected nesting: ok | > [ 0.936784][ T0] > -------------------------------------------------------------------------- > [ 0.937936][ T0] | wait context tests | > [ 0.938516][ T0] > -------------------------------------------------------------------------- > [ 0.939661][ T0] | rcu | raw | spin > |mutex | > [ 0.940646][ T0] > -------------------------------------------------------------------------- > [ 0.941798][ T0] in hardirq context: ok | ok | ok > | ok | > [ 0.944946][ T0] in hardirq context (not threaded): ok | ok | ok > | ok | > [ 0.948072][ T0] in softirq context: ok | ok | ok > | ok | > [ 0.951206][ T0] in RCU context: ok | ok | ok > | ok | > [ 0.954345][ T0] in RCU-bh context: ok | ok | ok > | ok | > [ 0.957477][ T0] in RCU-sched context: ok | ok | ok > | ok | > [ 0.960612][ T0] in RAW_SPINLOCK context: ok | ok | ok > | ok | > [ 0.963927][ T0] in SPINLOCK context: ok | ok | ok > | ok | > [ 0.967252][ T0] in MUTEX context: ok | ok | ok > | ok | > [ 0.970571][ T0] > -------------------------------------------------------------------------- > [ 0.971702][ T0] | local_lock tests | > [ 0.972422][ T0] --------------------- > [ 0.972965][ T0] local_lock inversion 2: ok | > [ 0.974319][ T0] local_lock inversion 3A: ok | > [ 0.975708][ T0] local_lock inversion 3B: ok | > [ 0.977106][ T0] hardirq_unsafe_softirq_safe: ok | > [ 0.978595][ T0] > -------------------------------------------------------------------------- > [ 0.979723][ T0] | lockdep_set_subclass() name test| > [ 0.980424][ T0] ----------------------------------- > [ 0.981123][ T0] compare name before and after: ok | > [ 0.982423][ T0] > ----------------------------------------------------------------- > [ 0.983434][ T0] BUG: 2 unexpected failures (out of 395) - debugging > disabled! | > [ 0.984441][ T0] > ----------------------------------------------------------------- > > > Is this a known issue? > Yes, these were reported at: https://lore.kernel.org/lkml/Zw19sMtnKdyOVQoh@boqun-archlinux/ and Thomas (Cced) send an updated version: https://lore.kernel.org/lkml/20241017151007.92215-1-thomas.hellstrom@linux.intel.com/ , which wasn't picked up. :( Thomas, could you send a fix ontop? I'm happy to review and test it. Thanks! Regards, Boqun > Thanks, > > Bart. ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Unexpected lockdep selftest failures 2024-11-26 22:23 ` Boqun Feng @ 2024-11-27 7:17 ` Thomas Hellström 0 siblings, 0 replies; 4+ messages in thread From: Thomas Hellström @ 2024-11-27 7:17 UTC (permalink / raw) To: Boqun Feng, Bart Van Assche Cc: Peter Zijlstra, Ingo Molnar, Will Deacon, Waiman Long, linux-kernel On Tue, 2024-11-26 at 14:23 -0800, Boqun Feng wrote: > Hi, > > On Fri, Nov 22, 2024 at 12:18:40PM -0800, Bart Van Assche wrote: > > Hi, > > > > With the for-next branch of this tree: git://git.kernel.dk/linux- > > block > > (commit 12ab2c13ca77 ("Merge branch 'for-6.13/block' into for- > > next")) I > > see the following: > > > > > > [ 0.887603][ T0] > > ------------------------------------------------------------------- > > ------- > > [ 0.888763][ T0] | Wound/wait tests | > > [ 0.889310][ T0] --------------------- > > [ 0.889867][ T0] ww api failures: ok > > |FAILED| ok > > > > > [ 0.892597][ T0] ww contexts mixing: ok | > > ok | > > [ 0.894638][ T0] finishing ww context: ok | > > ok | ok > > > ok | > > [ 0.898020][ T0] locking mismatches: ok | > > ok | ok > > > > > [ 0.900689][ T0] EDEADLK handling: ok | > > ok | ok > > > ok | ok | ok | ok | ok | ok | ok | > > [ 0.908172][ T0] spinlock nest unlocked: ok | > > [ 0.909484][ T0] spinlock nest test: ok | > > [ 0.910902][ T0] -------------------------------------------- > > --------- > > [ 0.911824][ T0] |block | > > try > > > context| > > [ 0.912970][ T0] -------------------------------------------- > > --------- > > [ 0.913890][ T0] context: ok | > > ok | ok > > > > > [ 0.916613][ T0] try: ok | > > ok | ok > > > > > [ 0.919235][ T0] block: ok | > > ok | ok > > > > > [ 0.921852][ T0] spinlock: ok | > > ok > > > FAILED| > > [ 0.924666][ T0] > > ------------------------------------------------------------------- > > ------- > > [ 0.925852][ T0] | queued read lock tests | > > [ 0.926506][ T0] --------------------------- > > [ 0.927132][ T0] hardirq read-lock/lock-read: ok | > > [ 0.928496][ T0] hardirq lock-read/read-lock: ok | > > [ 0.929860][ T0] hardirq inversion: ok | > > [ 0.931269][ T0] -------------------- > > [ 0.931827][ T0] | fs_reclaim tests | > > [ 0.932383][ T0] -------------------- > > [ 0.932932][ T0] correct nesting: ok | > > [ 0.934252][ T0] wrong nesting: ok | > > [ 0.935518][ T0] protected nesting: ok | > > [ 0.936784][ T0] > > ------------------------------------------------------------------- > > ------- > > [ 0.937936][ T0] | wait context tests | > > [ 0.938516][ T0] > > ------------------------------------------------------------------- > > ------- > > [ 0.939661][ T0] | rcu | > > raw | spin > > > mutex | > > [ 0.940646][ T0] > > ------------------------------------------------------------------- > > ------- > > [ 0.941798][ T0] in hardirq context: ok | > > ok | ok > > > ok | > > [ 0.944946][ T0] in hardirq context (not threaded): ok | > > ok | ok > > > ok | > > [ 0.948072][ T0] in softirq context: ok | > > ok | ok > > > ok | > > [ 0.951206][ T0] in RCU context: ok | > > ok | ok > > > ok | > > [ 0.954345][ T0] in RCU-bh context: ok | > > ok | ok > > > ok | > > [ 0.957477][ T0] in RCU-sched context: ok | > > ok | ok > > > ok | > > [ 0.960612][ T0] in RAW_SPINLOCK context: ok | > > ok | ok > > > ok | > > [ 0.963927][ T0] in SPINLOCK context: ok | > > ok | ok > > > ok | > > [ 0.967252][ T0] in MUTEX context: ok | > > ok | ok > > > ok | > > [ 0.970571][ T0] > > ------------------------------------------------------------------- > > ------- > > [ 0.971702][ T0] | local_lock tests | > > [ 0.972422][ T0] --------------------- > > [ 0.972965][ T0] local_lock inversion 2: ok | > > [ 0.974319][ T0] local_lock inversion 3A: ok | > > [ 0.975708][ T0] local_lock inversion 3B: ok | > > [ 0.977106][ T0] hardirq_unsafe_softirq_safe: ok | > > [ 0.978595][ T0] > > ------------------------------------------------------------------- > > ------- > > [ 0.979723][ T0] | lockdep_set_subclass() name test| > > [ 0.980424][ T0] ----------------------------------- > > [ 0.981123][ T0] compare name before and after: ok | > > [ 0.982423][ T0] > > ----------------------------------------------------------------- > > [ 0.983434][ T0] BUG: 2 unexpected failures (out of 395) - > > debugging > > disabled! | > > [ 0.984441][ T0] > > ----------------------------------------------------------------- > > > > > > Is this a known issue? > > > > Yes, these were reported at: > > > https://lore.kernel.org/lkml/Zw19sMtnKdyOVQoh@boqun-archlinux/ > > and Thomas (Cced) send an updated version: > > > https://lore.kernel.org/lkml/20241017151007.92215-1-thomas.hellstrom@ > linux.intel.com/ > > , which wasn't picked up. :( > > Thomas, could you send a fix ontop? I'm happy to review and test it. > Thanks! > > Regards, > Boqun Yes, I'll do that. For some reason the incorrect version was also queued for stable backport. I replied to those backport patches and asked them not to be backported, but has not seen any replies yet. Thanks, Thomas > > > Thanks, > > > > Bart. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2024-11-27 7:18 UTC | newest] Thread overview: 4+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2024-11-22 20:18 Unexpected lockdep selftest failures Bart Van Assche 2024-11-24 21:33 ` Palmer Dabbelt 2024-11-26 22:23 ` Boqun Feng 2024-11-27 7:17 ` Thomas Hellström
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