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Shutemov" , Linus Torvalds , Naresh Kamboju , Andrew Morton , linux-mm@kvack.org, LKML Subject: Re: WARN_ON in move_normal_pmd Message-ID: References: <20230324130530.xsmqcxapy4j2aaik@box.shutemov.name> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 7FDD980017 X-Stat-Signature: rh5xgqpkxdt4syzfzoqenu9mmcrpcx6q X-HE-Tag: 1679668733-239747 X-HE-Meta: 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 o/OCnq39 ITCWAcoIPsWpZ+IF1M1JEPiiCRAm1wrCwFa91wtIkPXOcB2IrjC6bRNZ+Pcep9JcMEx7jF78/jWD+DsAa3IlZJEE57OPPaBGzSTD3U91t1UkuBYJza3Ur3xaPWs1vkoj4OikBwc4s4T/PPk43awzzac/1GFa44Bc3Mlklsf+vhJV+Fc+dkAK0t7f225D+kdebfWvsrJMRgmjDINDxf5QxtPVzDg== 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: On Fri 24-03-23 09:43:10, Joel Fernandes wrote: [...] > Michal, would you also mind providing the full stack you are seeing > just so we know it is the same issue (i.e. triggered via exec)? Yes, it is the exec path [ 544.236782][T20518] Call Trace: [ 544.237467][T20518] [ 544.238034][T20518] move_page_tables+0x8e4/0x930 [ 544.238039][T20518] shift_arg_pages+0xb5/0x180 [ 544.238044][T20518] ? mprotect_fixup+0x1ce/0x2e0 [ 544.238046][T20518] setup_arg_pages+0x256/0x2b0 [ 544.238049][T20518] load_elf_binary+0x375/0x15d0 [ 544.238052][T20518] ? __kernel_read+0x2e8/0x310 [ 544.238056][T20518] ? __kernel_read+0x2e8/0x310 [ 544.238059][T20518] bprm_execve+0x2ec/0x650 [ 544.238062][T20518] do_execveat_common.isra.42+0x1ed/0x230 [ 544.238064][T20518] __x64_sys_execve+0x32/0x40 [ 544.238067][T20518] do_syscall_64+0x5b/0x80 [ 544.238072][T20518] ? __SCT__preempt_schedule_notrace+0x8/0x8 [ 544.238075][T20518] ? __SCT__preempt_schedule_notrace+0x8/0x8 [ 544.238076][T20518] ? exit_to_user_mode_prepare+0xfc/0x230 [ 544.250270][T20518] ? syscall_exit_to_user_mode+0x18/0x40 [ 544.250292][T20518] ? do_syscall_64+0x67/0x80 [ 544.250294][T20518] ? exc_page_fault+0x67/0x150 [ 544.250297][T20518] entry_SYSCALL_64_after_hwframe+0x61/0xcb -- Michal Hocko SUSE Labs