On Mon, Nov 10, 2025 at 02:03:43PM +0000, Matthew Wilcox wrote: > On Mon, Nov 10, 2025 at 03:00:32PM +0100, David Hildenbrand (Red Hat) wrote: > > On 10.11.25 14:47, Matthew Wilcox wrote: > > > On Mon, Nov 10, 2025 at 11:32:53AM +0000, Shivank Garg wrote: > > > > When MADV_COLLAPSE is called on file-backed mappings (e.g., executable > > > > text sections), the pages may still be dirty from recent writes. The > > > > > > That explanation derails my brain entirely. Text isn't writable! How > > > can the pages be dirty and file-backed text? > > > > Files are writable :) > > Well, if you're root ... > > -rwxr-xr-x 1 root root 158632 Jun 4 11:14 /bin/ls >
gcc foo.c -o foo && ./foo Is more the issue I think
