Date: Thu, 27 Jul 2023 11:18:37 +0000 From: bugzilla-noreply@freebsd.org To: fs@FreeBSD.org Subject: [Bug 252700] page fault in zfsctl_snapdir_lookup Message-ID: <bug-252700-3630-YWNVanvCkH@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-252700-3630@https.bugs.freebsd.org/bugzilla/> References: <bug-252700-3630@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D252700 geoffroy desvernay <dgeo@centrale-marseille.fr> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |dgeo@centrale-marseille.fr --- Comment #14 from geoffroy desvernay <dgeo@centrale-marseille.fr> --- I do experience pseudo random crashes with find(8), may this be related ? Unread portion of the kernel message buffer: panic: page fault cpuid =3D 4 time =3D 1690247328 KDB: stack backtrace: #0 0xffffffff80c53d95 at kdb_backtrace+0x65 #1 0xffffffff80c06711 at vpanic+0x151 #2 0xffffffff80c065b3 at panic+0x43 #3 0xffffffff810b1fa7 at trap_fatal+0x387 #4 0xffffffff810b1fff at trap_pfault+0x4f #5 0xffffffff81088e48 at calltrap+0x8 #6 0xffffffff80ce4d96 at vgonel+0x186 #7 0xffffffff80ce5451 at vgone+0x31 #8 0xffffffff80cd3df9 at vfs_hash_insert+0x279 #9 0xffffffff82176e59 at sfs_vgetx+0x149 #10 0xffffffff82177a44 at zfsctl_snapdir_lookup+0x1e4 #11 0xffffffff80cd60ac at lookup+0x45c #12 0xffffffff80cd52cd at namei+0x24d #13 0xffffffff80cf2c16 at kern_statat+0xf6 #14 0xffffffff80cf331f at sys_fstatat+0x2f #15 0xffffffff810b289c at amd64_syscall+0x10c #16 0xffffffff8108975b at fast_syscall_common+0xf8 Uptime: 18h19m29s __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:55 55 __asm("movq %%gs:%P1,%0" : "=3Dr" (td) : "n" (offsetof(stru= ct pcpu, (kgdb) bt #0 __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:55 #1 doadump (textdump=3D<optimized out>) at /usr/src/sys/kern/kern_shutdown= .c:396 #2 0xffffffff80c062da in kern_reboot (howto=3D260) at /usr/src/sys/kern/kern_shutdown.c:484 #3 0xffffffff80c0677e in vpanic (fmt=3D<optimized out>, ap=3Dap@entry=3D0xfffffe01a84643d0) at /usr/src/sys/kern/kern_shutdown.c:923 #4 0xffffffff80c065b3 in panic (fmt=3D<unavailable>) at /usr/src/sys/kern/kern_shutdown.c:847 #5 0xffffffff810b1fa7 in trap_fatal (frame=3D0xfffffe01a84644c0, eva=3D0) = at /usr/src/sys/amd64/amd64/trap.c:942 #6 0xffffffff810b1fff in trap_pfault (frame=3D0xfffffe01a84644c0, usermode=3Dfalse, signo=3D<optimized out>,=20 ucode=3D<optimized out>) at /usr/src/sys/amd64/amd64/trap.c:761 #7 <signal handler called> #8 0x0000000000000000 in ?? () #9 0xffffffff811813fc in VOP_CLOSE_APV (vop=3D0xffffffff8242aad0 <zfsctl_ops_snapshot>, a=3Da@entry=3D0xfffffe01a84645b0) at vnode_if.c:498 #10 0xffffffff80ce4d96 in VOP_CLOSE (vp=3D0xfffff805ce07c3d0, fflag=3D4, cr= ed=3D0x0, td=3D0xfffffe01a3ecaac0) at ./vnode_if.h:249 #11 vgonel (vp=3Dvp@entry=3D0xfffff805ce07c3d0) at /usr/src/sys/kern/vfs_subr.c:4092 #12 0xffffffff80ce5451 in vgone (vp=3Dvp@entry=3D0xfffff805ce07c3d0) at /usr/src/sys/kern/vfs_subr.c:3967 #13 0xffffffff80cd3df9 in vfs_hash_insert (vp=3D0xfffff805ce07c3d0, hash=3D= 7373, hash@entry=3D2823179312,=20 flags=3Dflags@entry=3D2097152, td=3Dtd@entry=3D0xfffffe01a3ecaac0, vpp=3Dvpp@entry=3D0xfffffe01a8464c30, fn=3D<optimized out>,=20 arg=3D0xfffff808188efd80) at /usr/src/sys/kern/vfs_hash.c:181 #14 0xffffffff82176e59 in sfs_vnode_insert (vp=3D0xfffffe01a84645b0, flags=3D2097152, id=3D<optimized out>,=20 parent_id=3D<optimized out>, vpp=3D<optimized out>) at /usr/src/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_ctldir.c:152 #15 sfs_vgetx (mp=3D0xfffffe01637fab00, flags=3Dflags@entry=3D2097152, parent_id=3Dparent_id@entry=3D2, id=3D<optimized out>,=20 tag=3D<optimized out>, vops=3D0xffffffff8242aad0 <zfsctl_ops_snapshot>,= =20 setup=3D0xffffffff82178180 <zfsctl_snapshot_vnode_setup>, arg=3D0xfffffe01a8464820, vpp=3D0xfffffe01a8464c30) at /usr/src/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_ctldir.c:200 #16 0xffffffff82177a44 in zfsctl_snapdir_lookup (ap=3D<optimized out>) at /usr/src/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_ctldir.c:954 #17 0xffffffff80cd60ac in VOP_LOOKUP (dvp=3D0xfffff805e17b67a0, vpp=3D0xfffffe01a8464c30, cnp=3D0xfffffe01a8464c58) at ./vnode_if.h:65 #18 lookup (ndp=3Dndp@entry=3D0xfffffe01a8464bd8) at /usr/src/sys/kern/vfs_lookup.c:1086 #19 0xffffffff80cd52cd in namei (ndp=3Dndp@entry=3D0xfffffe01a8464bd8) at /usr/src/sys/kern/vfs_lookup.c:616 #20 0xffffffff80cf2c16 in kern_statat (td=3D0xfffffe01a3ecaac0, flag=3D<opt= imized out>, fd=3D-100, path=3D0x0,=20 pathseg=3D(unknown: 0xa3ecafd0), pathseg@entry=3DUIO_USERSPACE, sbp=3D0xfffffe01a8465000, sbp@entry=3D0xfffffe01a8464d18,=20 hook=3D0x0) at /usr/src/sys/kern/vfs_syscalls.c:2438 #21 0xffffffff80cf331f in sys_fstatat (td=3D0xfffffe01a84645b0, uap=3D0xfffffe01a3ecaea8) at /usr/src/sys/kern/vfs_syscalls.c:2415 #22 0xffffffff810b289c in syscallenter (td=3D0xfffffe01a3ecaac0) at /usr/src/sys/amd64/amd64/../../kern/subr_syscall.c:190 #23 amd64_syscall (td=3D0xfffffe01a3ecaac0, traced=3D0) at /usr/src/sys/amd64/amd64/trap.c:1183 #24 <signal handler called> #25 0x0000107a36849cba in ?? () Backtrace stopped: Cannot access memory at address 0x107a342835e8 --=20 You are receiving this mail because: You are the assignee for the bug.=
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