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 4oDvoVO/ 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Fri, Aug 23, 2024 at 12:42:18PM GMT, Bert Karwatzki wrote: > Am Freitag, dem 23.08.2024 um 10:55 +0100 schrieb Lorenzo Stoakes: [snip] > > On Fri, Aug 23, 2024 at 10:43:11AM GMT, Bert Karwatzki wrote: > > > > [snip] > > > I'm running the v7 Patchset on linux-next-20240822 and I get lots of these > > > errors (right on boot) (both when using the complete patchset and when using > > > only the patches up to this): > > > > Hm curious, I'm running this in qemu with CONFIG_DEBUG_VM set and don't see > > this at lesat on next-20240823. > > > > Liam's series is based on the mseal series by Pedro, not sure if that wasn't in > > 22 somehow? > > > > Can you try with 23, from tip and: > > > > b4 shazam 20240822192543.3359552-1-Liam.Howlett@oracle.com > > > > To grab this series just to be sure? > > > > Because that'd definitely be very weird + concerning and something we hadn't > > seen before (I don't think?) for the mm->data_vm to be incorrect... > > > > > [snip] > > I grabbed the patches by saving the v7 patch emails as an mbox file and using > git am to apply them (which worked without error) and git pull --rebase to > update the series to next-20240823 (which works without conflicts). Thanks, you are right, see other thread for an explanation. Good spot! [snip - for brevity cutting dmesg logs, but much appreciated!] These messages aside everything seems to work (I sending this email using the > affected kernel) so I'm wondering if the checks aren't a little too paranoid. Just to make the point - if these checks were the correct way around, this would indicate that key mm counters are underflowing, which would be very serious indeed - so just paranoid enough :) The paranoia is because this should never happen. > > By the way: These 6 patches by Pedro Falcato are present in linux-next-20240822, > too: > > mm: remove can_modify_mm() Pedro Falcato > mseal: replace can_modify_mm_madv with a vma variant Pedro Falcato > mm/mremap: replace can_modify_mm with can_modify_vma Pedro Falcato > mm/mprotect: replace can_modify_mm with can_modify_vma Pedro Falcato > mm/munmap: replace can_modify_mm with can_modify_vma Pedro Falcato > mm: move can_modify_vma to mm/vma.h Pedro Falcato > > Bert Karwatzki > Thanks for confirming!