On Tue, 4 Mar 2025, Zi Yan wrote: > On 4 Mar 2025, at 6:49, Hugh Dickins wrote: > > > > I'd been unable to complete even a single iteration of my "kernel builds > > on huge tmpfs while swapping to SSD" testing during this current 6.14-rc > > mm.git cycle (6.14-rc itself fine) - until the last week, when some > > important fixes have come in, so I'm no longer getting I/O errors from > > ext4-on-loop0-on-huge-tmpfs, and "Huh VM_FAULT_OOM leaked" warnings: good. > > This error should be related to the other patch I sent out on using > xas_try_split() in shmem_large_entry_split(). Great to have you confirm > it fixed some of the bugs. > > > > > But I still can't get beyond a few iterations, a few minutes: there's > > some corruption of user data, which usually manifests as a kernel build > > failing because fixdep couldn't find some truncated-on-the-left pathname. > > It is likely that this patch might fix it (partially): > https://lore.kernel.org/linux-mm/56EBE3B6-99EA-470E-B2B3-92C9C13032DF@xxxxxxxxxx/. > Andrew has picked it yesterday. No, that's a fix to a truncation issue which I had not hit: I did try adding that patch, but it has not helped in my case. Beyond checking that, I didn't have time yesterday to investigate further, but I'll try again today (still using last weekend's mm.git). Hugh
