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[syzbot] [mm?] KCSAN: data-race in getrusage / try_to_unmap_one (2) | 0 (1) | 2025/04/03 07:05 |
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[syzbot] [mm?] KCSAN: data-race in getrusage / try_to_unmap_one (2) | 0 (1) | 2025/04/03 07:05 |
================================================================== BUG: KCSAN: data-race in getrusage / try_to_unmap_one write to 0xffff88810005fa00 of 8 bytes by task 3586 on cpu 0: update_hiwater_rss include/linux/mm.h:2771 [inline] try_to_unmap_one+0xf0e/0x2140 mm/rmap.c:2061 __rmap_walk_file+0x1e9/0x2b0 mm/rmap.c:2897 try_to_unmap+0x1ae/0x1e0 mm/rmap.c:-1 shrink_folio_list+0x121a/0x2670 mm/vmscan.c:1373 reclaim_folio_list+0x80/0x2b0 mm/vmscan.c:2217 reclaim_pages+0x215/0x270 mm/vmscan.c:2254 madvise_cold_or_pageout_pte_range+0xd61/0xdd0 mm/madvise.c:558 walk_pmd_range mm/pagewalk.c:130 [inline] walk_pud_range mm/pagewalk.c:226 [inline] walk_p4d_range mm/pagewalk.c:264 [inline] walk_pgd_range+0x86b/0x11b0 mm/pagewalk.c:305 __walk_page_range+0xdd/0x340 mm/pagewalk.c:412 walk_page_range_mm+0x352/0x4a0 mm/pagewalk.c:505 walk_page_range+0x56/0x70 mm/pagewalk.c:584 madvise_pageout_page_range mm/madvise.c:617 [inline] madvise_pageout mm/madvise.c:644 [inline] madvise_vma_behavior mm/madvise.c:1269 [inline] madvise_walk_vmas mm/madvise.c:1530 [inline] madvise_do_behavior+0x1bea/0x24a0 mm/madvise.c:1695 do_madvise mm/madvise.c:1782 [inline] __do_sys_madvise mm/madvise.c:1790 [inline] __se_sys_madvise mm/madvise.c:1788 [inline] __x64_sys_madvise+0xc9/0x100 mm/madvise.c:1788 x64_sys_call+0x2455/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:29 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd0/0x1a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff88810005fa00 of 8 bytes by task 3600 on cpu 1: get_mm_hiwater_rss include/linux/mm.h:2758 [inline] setmax_mm_hiwater_rss include/linux/mm.h:2788 [inline] getrusage+0xa52/0xbb0 kernel/sys.c:1876 io_sq_thread+0x5dd/0x1110 io_uring/sqpoll.c:310 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 value changed: 0x00000000000016f4 -> 0x0000000000001721 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 3600 Comm: iou-sqp-3586 Not tainted 6.15.0-rc3-syzkaller-00094-g02ddfb981de8 #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2025/04/25 13:03 | upstream | 02ddfb981de8 | e3715315 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in getrusage / try_to_unmap_one | ||
2025/04/03 17:41 | upstream | a1b5bd45d4ee | 996a9618 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in getrusage / try_to_unmap_one | ||
2025/04/03 03:34 | upstream | 92b71befc349 | c799dfdd | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in getrusage / try_to_unmap_one |