Messages in this thread | | | Date | Mon, 5 Feb 2024 13:17:17 -0800 | From | "Paul E. McKenney" <> | Subject | Re: [BUG] workqueues and printk not playing nice since next-20240130 |
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On Mon, Feb 05, 2024 at 10:30:25AM -1000, Tejun Heo wrote: > Hello, > > On Mon, Feb 05, 2024 at 11:41:10AM -0800, Paul E. McKenney wrote: > > [ 0.316453] ================================================================== > > [ 0.317646] BUG: KASAN: use-after-free in wq_update_node_max_active+0x123/0x810 > > [ 0.318851] Read of size 8 at addr ffff88802109d788 by task swapper/0/0 > > Ah, that one is fixed by 15930da42f89 ("workqueue: Don't call > cpumask_test_cpu() with -1 CPU in wq_update_node_max_active()"). I have a > hard time imagining that having anything to do with console being quiet tho. > It's a cpumask bit test targeting cpu -1 and the result gets overwritten > later during boot.
Thank you for confirming!
If the silent console comes up again, I will beat up on that more.
Thanx, Paul
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