On Wed, May 22, 2024 at 3:36 AM Peter Xu <peterx@xxxxxxxxxx> wrote: > > On Wed, May 22, 2024 at 03:21:04AM +0500, Mikhail Gavrilov wrote: > > On Wed, May 22, 2024 at 2:37 AM Peter Xu <peterx@xxxxxxxxxx> wrote: > > > Hmm I still cannot reproduce. Weird. > > > > > > Would it be possible for you to identify which line in debug_vm_pgtable.c > > > triggered that issue? > > > > > > I think it should be some set_pte_at() but I'm not sure, as there aren't a > > > lot and all of them look benign so far. It could be that I missed > > > something important. > > > > I hope it's helps: > > Thanks for offering this, it's just that it doesn't look coherent with what > was reported for some reason. > There can be no mistake here. I just copy the console output without rebooting. > sudo dmesg | grep "debug_vm_pgtable" [ 8.043229] debug_vm_pgtable: [debug_vm_pgtable ]: Validating architecture page table helpers [ 8.103359] debug_vm_pgtable+0x1c04/0x3360 [ 8.103607] ? __pfx_debug_vm_pgtable+0x10/0x10 [ 8.104312] ? __pfx_debug_vm_pgtable+0x10/0x10 > sh /lib/modules/6.9.0-test-eb6a9339efeb+/build/scripts/faddr2line /lib/modules/6.9.0-test-eb6a9339efeb+/build/vmlinux debug_vm_pgtable+0x1c04 debug_vm_pgtable+0x1c04/0x3360: native_ptep_get_and_clear at arch/x86/include/asm/pgtable_64.h:94 (inlined by) ptep_get_and_clear at arch/x86/include/asm/pgtable.h:1278 (inlined by) ptep_clear at include/linux/pgtable.h:509 (inlined by) pte_clear_tests at mm/debug_vm_pgtable.c:643 (inlined by) debug_vm_pgtable at mm/debug_vm_pgtable.c:1392 -- Best Regards, Mike Gavrilov.
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