On Sat, Aug 10, 2024 at 07:56:21AM +0200, Jürg Billeter wrote: > Thanks for the quick response. Thanks for the quick test! > On Fri, 2024-08-09 at 17:03 +0100, Matthew Wilcox wrote: > > Do you have CONFIG_DEBUG_VM enabled? There are some debugging asserts > > which that will enable that might indicate a problem. > > With CONFIG_DEBUG_VM enabled, I get: > > page: refcount:2 mapcount:0 mapping:00000000b2c30835 index:0x0 pfn:0x12a113 > memcg:ffff9d8e3a660800 > aops:0xffffffff8a056820 ino:21 dentry name:"bash" > flags: 0x24000000000022d(locked|referenced|uptodate|lru|workingset|node=0|zone=2) > raw: 024000000000022d ffffd9ce04a827c8 ffffd9ce04a84508 ffff9d8e0bbc99f0 > raw: 0000000000000000 0000000000000000 00000002ffffffff ffff9d8e3a660800 > page dumped because: VM_BUG_ON_FOLIO(folio_test_uptodate(folio)) That's what I suspected was going wrong -- we're trying to end a read on a folio that is already uptodate. Miklos, what the hell is FUSE doing here?
