Re: [PATCH v1 1/4] kasan: Avoid sleepable page allocation from atomic context

On Tue Apr 8, 2025 at 1:11 AM AEST, Alexander Gordeev wrote: > apply_to_page_range() enters lazy MMU mode and then invokes > kasan_populate_vmalloc_pte() callback on each page table walk > iteration. The lazy MMU mode may only be entered only under > protection of the page table lock. However, the

Re: [PATCH v1 1/4] kasan: Avoid sleepable page allocation from atomic context

On Tue Apr 8, 2025 at 1:11 AM AEST, Alexander Gordeev wrote: > apply_to_page_range() enters lazy MMU mode and then invokes > kasan_populate_vmalloc_pte() callback on each page table walk > iteration. The lazy MMU mode may only be entered only under > protection of the page table lock. However, the

[PATCH v1 1/4] kasan: Avoid sleepable page allocation from atomic context

apply_to_page_range() enters lazy MMU mode and then invokes kasan_populate_vmalloc_pte() callback on each page table walk iteration. The lazy MMU mode may only be entered only under protection of the page table lock. However, the callback can go into sleep when trying to allocate a single page. Ch