Date: Fri, 07 Jul 2023 02:43:24 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 272403] panic: vm_page_assert_xbusied: page 0xfffffe0016a13728 busy_lock 0xfffffffe not owned by me @ /usr/src/sys/vm/vm_page.c:1183 Message-ID: <bug-272403-227-2fLn5bwaxA@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-272403-227@https.bugs.freebsd.org/bugzilla/> References: <bug-272403-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D272403 Graham Perrin <grahamperrin@freebsd.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|New |Open Keywords| |crash URL| |https://github.com/freebsd/ | |freebsd-src/blob/97f14168f2 | |1f7d618c413946b83a2a6adfc65 | |27a/sys/vm/vm_page.c#L1183 --- Comment #1 from Graham Perrin <grahamperrin@freebsd.org> --- > =E2=80=A6 main-n263900-cd9da8d072e4-dirty =E2=80=A6=20 That is, <https://cgit.freebsd.org/src/log/?qt=3Drange&q=3Dcd9da8d072e4>, a= nd the dirt (if relevant) is <https://reviews.freebsd.org/D40045>; (=E2=9A=99 D4004= 5 ule: queue partial slice users on tdq_realtime and enable more preemption).=20 ---- > =E2=80=A6 /usr/src/sys/vm/vm_page.c:1183 <https://github.com/freebsd/freebsd-src/commit/c7aebda8a14a3bb94bb038df3385= 49ccde5b56ea> (2013-08-09),=20 >> The soft and hard busy mechanism rely on the vm object lock to work. ---- >From core.txt.8 (attached, comment 0):=20 =E2=80=A6 Unread portion of the kernel message buffer: <118>Jul 6 15:54:44 mowa219-gjp4-8570p-freebsd syslogd: exiting on signal = 15 <6>wlan0: link state changed to DOWN panic: vm_page_assert_xbusied: page 0xfffffe0016a13728 busy_lock 0xfffffffe= not owned by me @ /usr/src/sys/vm/vm_page.c:1183 cpuid =3D 3 time =3D 1688655285 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe00fe88a= ba0 vpanic() at vpanic+0x150/frame 0xfffffe00fe88abf0 panic() at panic+0x43/frame 0xfffffe00fe88ac50 vm_page_xunbusy_hard_unchecked() at vm_page_xunbusy_hard_unchecked/frame 0xfffffe00fe88ac60 swapoff_one() at swapoff_one+0x3db/frame 0xfffffe00fe88ad00 kern_swapoff() at kern_swapoff+0x1bc/frame 0xfffffe00fe88ae00 amd64_syscall() at amd64_syscall+0x139/frame 0xfffffe00fe88af30 fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe00fe88af30 --- syscall (582, FreeBSD ELF64, swapoff), rip =3D 0xcd8e2e7868a, rsp =3D 0xcd8e061cde8, rbp =3D 0xcd8e061cf20 --- KDB: enter: panic Uptime: 21h27m11s Dumping 1645 out of 16260 MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..= 91% __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:59 59 __asm("movq %%gs:%P1,%0" : "=3Dr" (td) : "n" (offsetof(stru= ct pcpu, (kgdb) #0 __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:59 #1 doadump (textdump=3Dtextdump@entry=3D1) at /usr/src/sys/kern/kern_shutdown.c:407 #2 0xffffffff80b4b920 in kern_reboot (howto=3D260) at /usr/src/sys/kern/kern_shutdown.c:528 #3 0xffffffff80b4be3d in vpanic ( fmt=3D0xffffffff8125cda4 "vm_page_assert_xbusied: page %p busy_lock %#x= not owned by me @ %s:%d", ap=3Dap@entry=3D0xfffffe00fe88ac30) at /usr/src/sys/kern/kern_shutdown.c:972 #4 0xffffffff80b4bbc3 in panic (fmt=3D<unavailable>) at /usr/src/sys/kern/kern_shutdown.c:896 #5 0xffffffff80ef8ff0 in vm_page_xunbusy_hard (m=3D<unavailable>) at /usr/src/sys/vm/vm_page.c:1183 #6 0xffffffff80ed0eeb in swap_pager_swapoff_object (sp=3D0xfffff8002ca6a30= 0,=20 object=3D0xfffff80295092108) at /usr/src/sys/vm/swap_pager.c:1897 #7 swap_pager_swapoff (sp=3D0xfffff8002ca6a300) at /usr/src/sys/vm/swap_pager.c:1955 #8 swapoff_one (sp=3Dsp@entry=3D0xfffff8002ca6a300, cred=3D<optimized out>= ,=20 flags=3Dflags@entry=3D0) at /usr/src/sys/vm/swap_pager.c:2575 #9 0xffffffff80ed094c in kern_swapoff (td=3D0xfffffe0100b5be40,=20 name=3D<optimized out>, name_seg=3DUIO_USERSPACE, flags=3D0) at /usr/src/sys/vm/swap_pager.c:2507 #10 0xffffffff81047c19 in syscallenter (td=3D<optimized out>) at /usr/src/sys/amd64/amd64/../../kern/subr_syscall.c:190 #11 amd64_syscall (td=3D0xfffffe0100b5be40, traced=3D0) at /usr/src/sys/amd64/amd64/trap.c:1199 #12 <signal handler called> #13 0x00000cd8e2e7868a in ?? () Backtrace stopped: Cannot access memory at address 0xcd8e061cde8 (kgdb)=20 =E2=80=A6 --=20 You are receiving this mail because: You are the assignee for the bug.=
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