Am Samstag, dem 05.10.2024 um 12:17 +0100 schrieb Lorenzo Stoakes: > On Sat, Oct 05, 2024 at 07:41:14AM +0100, Lorenzo Stoakes wrote: > > Writing a data range into a maple tree may involve overwriting a number of > > existing entries that span across more than one node. Doing so invokes a > > 'spanning' store. > > > > [snip] > > Andrew - just to note that I have intentionally left stable off this, in > order that wre can allow this to stabilise in the 6.12 release candidates. > > Up until 6.12 this bug seemed much harder to hit, and as far as I'm aware > we've never had a bug report for it prior to this. I still suspect that this could have been the same error: https://lkml.org/lkml/2024/8/28/1558 When compiling the kernel without CONFIG_DEBUG_VM maple tree bug results in an unkillable task, and when trying to kill it first produced the rwsem warning (and soon after took down the whole system). But I couldn't reproduce it with the given reproducer, either. Bert Karwatzki
