Date: Sun, 24 Nov 2019 07:13:00 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 242184] r354398 causes panic in nfs_unmount during shutdown Message-ID: <bug-242184-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D242184 Bug ID: 242184 Summary: r354398 causes panic in nfs_unmount during shutdown Product: Base System Version: 12.0-STABLE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: rk@ronald.org Created attachment 209375 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D209375&action= =3Dedit core.txt.3 Recent 12.1-STABLE kernels panic on every reboot/shutdown in nfs_unmount (w= hen NFS file systems are mounted). I tracked it down to the change in r354398: MFC r353891: Fix interface between nfsclient and vnode pager.=20 Starting with r354398 the system panics on every reboot/shutdown while mounted NFS file systems are present: Fatal trap 12: page fault while in kernel mode cpuid =3D 0; apic id =3D 10 fault virtual address =3D 0x18 fault code =3D supervisor write data, page not present instruction pointer =3D 0x20:0xffffffff80acc688 stack pointer =3D 0x28:0xfffffe0075d55350 frame pointer =3D 0x28:0xfffffe0075d553a0 code segment =3D base 0x0, limit 0xfffff, type 0x1b =3D DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags =3D interrupt enabled, resume, IOPL =3D 0 current process =3D 1 (init) trap number =3D 12 panic: page fault cpuid =3D 0 time =3D 1574577411 KDB: stack backtrace: #0 0xffffffff80c1d917 at kdb_backtrace+0x67 #1 0xffffffff80bd0dad at vpanic+0x19d #2 0xffffffff80bd0c03 at panic+0x43 #3 0xffffffff810aa82c at trap_fatal+0x39c #4 0xffffffff810aa87f at trap_pfault+0x4f #5 0xffffffff810a9eb1 at trap+0x2a1 #6 0xffffffff8108364c at calltrap+0x8 #7 0xffffffff8122ea0c at VOP_LOCK1_APV+0x7c #8 0xffffffff80cb26f4 at _vn_lock+0x44 #9 0xffffffff80ca1a88 at vputx+0x138 #10 0xffffffff80ba903d at lf_free_lock+0x25d #11 0xffffffff80ba940f at lf_purgelocks+0x2df #12 0xffffffff80c8ffa4 at vop_stdadvlockpurge+0x14 #13 0xffffffff8122f4bc at VOP_ADVLOCKPURGE_APV+0x7c #14 0xffffffff80ca2a38 at vgonel+0x248 #15 0xffffffff80ca2112 at vflush+0x312 #16 0xffffffff80ad3865 at nfs_unmount+0xd5 #17 0xffffffff80c99e09 at dounmount+0x579 Revision r354394 is stable. Core information core.txt.3 is attached. I can make vmcore available when needed. --=20 You are receiving this mail because: You are the assignee for the bug.=
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