From nobody Tue Oct 17 16:42:31 2023 X-Original-To: bugs@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4S90Bv6672z4xkGw for ; Tue, 17 Oct 2023 16:42:31 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4S90Bv4pKgz4SMp for ; Tue, 17 Oct 2023 16:42:31 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1697560951; a=rsa-sha256; cv=none; b=oWtH7H4Kf8qJfmvpf2zk/DY1LRqod6LWe7jFxmL/XiHwhGFmBecK6SjbuxMuEJP+5+yuWk DGhcO/abCnZSfnQXyIM7KxOvMbRDe7QIupz56XNF0i72umFSdcBWdmnCHsc02QKiPRxdps l0JUDVKOEfuVanxHmJF3dB2vWOyMuZ9ORTRlsAbMbiLu967q/VBsrOy26TjDUBXnr2k+ub fsTu7/OKZ48Px+feOsu8fU1KjMy2MX9WshtLm9Zc42uvSli8pPemieo9D3KEBveXTZYhKr yijfrE5cL8UylCTEMtcy9NEH73eJuLbLz/tDOHZGjMyI+4g6xDZy5dutaU61fQ== ARC-Authentication-Results: i=1; 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Tue, 17 Oct 2023 16:42:31 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 39HGgVZF083611 for ; Tue, 17 Oct 2023 16:42:31 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 39HGgVLs083610 for bugs@FreeBSD.org; Tue, 17 Oct 2023 16:42:31 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 274538] panic: vrefact: wrong use count 0 Date: Tue, 17 Oct 2023 16:42:31 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 15.0-CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: trasz@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@freebsd.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D274538 Bug ID: 274538 Summary: panic: vrefact: wrong use count 0 Product: Base System Version: 15.0-CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: trasz@FreeBSD.org Trying to run glxinfo(1) from Ubuntu Jammy under Wayland on amd64 FreeBSD 15-CURRENT results in the following panic: VNASSERT failed: old > 0 not true at /usr/home/trasz/git/freebsd-src/sys/kern/vfs_subr.c:3367 (vrefact) 0xfffff802707f5540: type VCHR state VSTATE_CONSTRUCTED op 0xffffffff816ae740 usecount 1, writecount 0, refcount 6 seqc users 0 rdev 0xfffff80009786c= 00 hold count flags () flags () lock type devfs: UNLOCKED dev drm/128 panic: vrefact: wrong use count 0 cpuid =3D 3 time =3D 1697560355 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe00fc392= 820 vpanic() at vpanic+0x132/frame 0xfffffe00fc392950 panic() at panic+0x43/frame 0xfffffe00fc3929b0 vrefact() at vrefact+0x5e/frame 0xfffffe00fc3929d0 fgetvp_lookup() at fgetvp_lookup+0x97/frame 0xfffffe00fc392a30 namei_setup() at namei_setup+0x191/frame 0xfffffe00fc392a80 namei_emptypath() at namei_emptypath+0x49/frame 0xfffffe00fc392ae0 namei() at namei+0x661/frame 0xfffffe00fc392b40 linux_kern_statat() at linux_kern_statat+0x101/frame 0xfffffe00fc392c70 linux_newfstatat() at linux_newfstatat+0x59/frame 0xfffffe00fc392e00 amd64_syscall() at amd64_syscall+0x153/frame 0xfffffe00fc392f30 fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe00fc392f30 --- syscall (262, Linux ELF64, linux_newfstatat), rip =3D 0x801513f2e, rsp = =3D 0x7fffffffc138, rbp =3D 0x1090540 --- Uptime: 2m15s Dumping 863 out of 16225 MB:..2%..12%..21%..32%..41%..51%..62%..71%..82%..9= 1% __curthread () at /usr/home/trasz/git/freebsd-src/sys/amd64/include/pcpu_aux.h:57 57 __asm("movq %%gs:%P1,%0" : "=3Dr" (td) : "n" (offsetof(stru= ct pcpu, (kgdb) #0 __curthread () at /usr/home/trasz/git/freebsd-src/sys/amd64/include/pcpu_aux.h:57 #1 doadump (textdump=3Dtextdump@entry=3D1) at /usr/home/trasz/git/freebsd-src/sys/kern/kern_shutdown.c:405 #2 0xffffffff80b4ee90 in kern_reboot (howto=3D260) at /usr/home/trasz/git/freebsd-src/sys/kern/kern_shutdown.c:526 #3 0xffffffff80b4f38f in vpanic ( fmt=3D0xffffffff811e38b7 "%s: wrong use count %d",=20 ap=3Dap@entry=3D0xfffffe00fc392990) at /usr/home/trasz/git/freebsd-src/sys/kern/kern_shutdown.c:970 #4 0xffffffff80b4f133 in panic (fmt=3D) at /usr/home/trasz/git/freebsd-src/sys/kern/kern_shutdown.c:894 #5 0xffffffff80c45b9e in vrefact (vp=3D) at /usr/home/trasz/git/freebsd-src/sys/kern/vfs_subr.c:3367 #6 0xffffffff80aee277 in fgetvp_lookup (fd=3D,=20 ndp=3Dndp@entry=3D0xfffffe00fc392b50, vpp=3Dvpp@entry=3D0xfffffe00fc392= ac8) at /usr/home/trasz/git/freebsd-src/sys/kern/kern_descrip.c:3095 #7 0xffffffff80c36461 in namei_setup (ndp=3Dndp@entry=3D0xfffffe00fc392b50= ,=20 dpp=3Ddpp@entry=3D0xfffffe00fc392ac8, pwdp=3Dpwdp@entry=3D0xfffffe00fc3= 92ac0) at /usr/home/trasz/git/freebsd-src/sys/kern/vfs_lookup.c:352 #8 0xffffffff80c36109 in namei_emptypath (ndp=3Dndp@entry=3D0xfffffe00fc39= 2b50) at /usr/home/trasz/git/freebsd-src/sys/kern/vfs_lookup.c:432 #9 0xffffffff80c35f31 in namei (ndp=3Dndp@entry=3D0xfffffe00fc392b50) at /usr/home/trasz/git/freebsd-src/sys/kern/vfs_lookup.c:653 #10 0xffffffff83b447d1 in linux_kern_statat (td=3D0xfffffe01192e0720,=20 flag=3D16384, fd=3D4,=20 path=3D0x8015d846f = ,=20 pathseg=3DUIO_USERSPACE, sbp=3Dsbp@entry=3D0xfffffe00fc392c88) at /usr/home/trasz/git/freebsd-src/sys/compat/linux/linux_stats.c:103 #11 0xffffffff83b44519 in linux_newfstatat (td=3D,=20 args=3D0xfffffe01192e0b20) at /usr/home/trasz/git/freebsd-src/sys/compat/linux/linux_stats.c:606 #12 0xffffffff8104f693 in syscallenter (td=3D0xfffffe01192e0720) at /usr/home/trasz/git/freebsd-src/sys/amd64/amd64/../../kern/subr_syscall.c:1= 88 #13 amd64_syscall (td=3D0xfffffe01192e0720, traced=3D0) at /usr/home/trasz/git/freebsd-src/sys/amd64/amd64/trap.c:1194 #14 #15 0x0000000801513f2e in ?? () Backtrace stopped: Cannot access memory at address 0x7fffffffc138 --=20 You are receiving this mail because: You are the assignee for the bug.=