From nobody Tue Aug 02 06:30:09 2022 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 4LxlTs42xwz4YJd0 for ; Tue, 2 Aug 2022 06:30:09 +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 4LxlTs0p19z3t3v for ; Tue, 2 Aug 2022 06:30:09 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (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 did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4LxlTr6qDfz12tR for ; Tue, 2 Aug 2022 06:30:08 +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 2726U8uV043956 for ; Tue, 2 Aug 2022 06:30:08 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 2726U8fk043955 for bugs@FreeBSD.org; Tue, 2 Aug 2022 06:30:08 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 265569] [panic] Fatal trap 9: general protection fault while in kernel mode arc_reap Date: Tue, 02 Aug 2022 06:30:09 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 13.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: postmaster@willardstanley.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: 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 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1659421809; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=QrRv8L9/Z/qfTohOKXyRTUrcKh2/LXc1sxKyvcfove8=; b=R1kaqpNaACOBSrst6GipcUj2KcCyzGhGdJWGIiWV/HgMTdrr39sRSCbkR5v7v2gyo9g+Dh z37lUqJ7IPidxAamHyCdtNoEAPptu5TpxEO3iqSv99Qr5AVjvpFx4s2JKhdLuVpkM6S8nj 32WaEv9OI02qk3z0oUIBB/nc5CN2cS3rM/WOJDchetWRF7EHJ7kx1tpJ1neq2wjvvV2YPW WLdQh58OFs4SfSI/cRKoFayTMPOzBqjviu2TmxPt6FbmzpG7/Nh55JFFuWzNPRF7vGSfUK 1KzvzSjBiFDBzASVxNBnnHEHg7TIXmHghwh9snyvqT4Cu2k1CTEZMHtiVLfICg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1659421809; a=rsa-sha256; cv=none; b=R0c0vf9gs1dqVvScDfPTjFvuaWtMXPDi3r/hLDUcEoum1aqkCdvfrYcO1foB2BYIsQfuuQ hRvlicr8mqcHj7PjW+qZRQac8bCRpum2wvYJZvjLqoDpBmftztvTLyD50gfLlQwLnvOPVU 9ETmMyWh5tq8Nh6SYtxjvExMSkZ5H7LzQScQaoExy8uwXarPv8QAstynERclyNMIQTogzM Qq/C92n+NIv4+HMtToBvuN4L02RXmH07pw38oavQbrq4w1waOtp9M+9QYLooySHHNkHVsN 42fgyJuhy+nyK2R9W8s4dRw1cuFavulHZH2ZkS16y3VdcWfPVNJUB9gyGO3qHg== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D265569 --- Comment #1 from Charlie Stanley --- I was doing some more debugging and the call chain looks sane until the slab address is computed. The slab pointer seems to be at an odd offset, and whe= n I dereference it, the data looks like garbage to my limited understanding. (kgdb) frame 8 #8 zone_release (arg=3D0xfffffe015a7c8000, bucket=3D0xfffff80f4784e410, cnt=3D) at /usr/src/sys/vm/uma_core.c:4730 4730 slab_free_item(zone, slab, item); (kgdb) print zone $19 =3D (uma_zone_t) 0xfffffe015a7c8000 (kgdb) print slab $20 =3D (uma_slab_t) 0xfffff80e00000158 (kgdb) print *zone $21 =3D {uz_flags =3D 10551296, uz_size =3D 4096, uz_ctor =3D 0x0, uz_dtor = =3D 0x0, uz_smr =3D 0x0, uz_max_items =3D 0, uz_bucket_max =3D 18446744073709551615, uz_bucket_size =3D 80, uz_bucket_size_max =3D 254, uz_sleepers =3D 0, uz_xd= omain =3D 0xfffffe01d3cb4590, uz_keg =3D 0xfffff80005f13a80,=20 uz_import =3D 0xffffffff80f4a370 , uz_release =3D 0xffffffff= 80f465e0 , uz_arg =3D 0xfffffe015a7c8000, uz_init =3D 0x0, uz_fini =3D= 0x0, uz_items =3D 0, uz_sleeps =3D 0, uz_link =3D {le_next =3D 0x0, le_prev =3D 0xfffff80005f13a90}, uz_allocs =3D 0xfffffe01d3cb45a8,=20 uz_frees =3D 0xfffffe01d3cb45a0, uz_fails =3D 0xfffffe01d3cb4598, uz_name= =3D 0xfffff80005f0a180 "abd_chunk", uz_ctlname =3D 0xfffff80005f18de0 "abd_chun= k", uz_namecnt =3D 0, uz_bucket_size_min =3D 2, uz_reclaimers =3D 1, uz_oid =3D 0xfffff80005f07b80, uz_warning =3D 0x0, uz_ratecheck =3D { tv_sec =3D 0, tv_usec =3D 0}, uz_maxaction =3D {ta_link =3D {stqe_next = =3D 0x0}, ta_pending =3D 0, ta_priority =3D 0 '\000', ta_flags =3D 0 '\000', ta_func = =3D 0x0, ta_context =3D 0x0}, uz_cross_lock =3D {lock_object =3D {lo_name =3D 0xffff= ffff812a0598 "UMA Cross", lo_flags =3D 16973824,=20 lo_data =3D 0, lo_witness =3D 0x0}, mtx_lock =3D 0}, uz_cpu =3D 0xfffffe015a7c8180} (kgdb) print *slab $22 =3D {us_link =3D {le_next =3D 0xda39576285989539, le_prev =3D 0x732ca6f= 15f8ff3dc}, us_freecount =3D 4147, us_flags =3D 27 '\033', us_domain =3D 120 'x', us_fr= ee =3D {__bits =3D 0xfffff80e00000170}} --=20 You are receiving this mail because: You are the assignee for the bug.=