On 2021-10-11 15:56:09 [+0200], To Luis Claudio R. Goncalves wrote: > So my guess is that the _bh isn't needed. Correction: If there is at least _one_ reader in softirq all, writer need to disable BH which _might_ be the case here. The splat is probably because on read_lock holder disables BH later on which I don't see yet. Sebastian