Re: vector: spinlock ordering problems

2024-07-03 Thread Anton Ivanov
On 03/07/2024 17:26, Johannes Berg wrote: Lockdep reports a spinlock ordering problem: sometimes we take head_lock first, sometimes tail_lock, so there's a classic ABBA deadlock possible. It may not happen now because of UML being single-CPU and all that, but perhaps with preempt? You need both

vector: spinlock ordering problems

2024-07-03 Thread Johannes Berg
Lockdep reports a spinlock ordering problem: sometimes we take head_lock first, sometimes tail_lock, so there's a classic ABBA deadlock possible. It may not happen now because of UML being single-CPU and all that, but perhaps with preempt? Report: =