From nobody Mon Aug 16 15:12:31 2021 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 D567B176D778 for ; Mon, 16 Aug 2021 15:12:31 +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 4GpHhb5VkKz4fcF for ; Mon, 16 Aug 2021 15:12:31 +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 9AD4B3C1D for ; Mon, 16 Aug 2021 15:12:31 +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 17GFCVTu093430 for ; Mon, 16 Aug 2021 15:12:31 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 17GFCVaT093429 for bugs@FreeBSD.org; Mon, 16 Aug 2021 15:12:31 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 257885] panic: vm_fault: fault on nofault entry during elf64_coredump Date: Mon, 16 Aug 2021 15:12:31 +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: 12.2-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: asomers@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 X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D257885 Bug ID: 257885 Summary: panic: vm_fault: fault on nofault entry during elf64_coredump Product: Base System Version: 12.2-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: asomers@FreeBSD.org On a slightly modified version of 12.2-RELEASE amd64, a user process repeat= edly crashed with SIGBUS. While dumping core, the kernel panicked. I recorded a textdump of the crash, but not a full core dump. Here are the final messag= es. <6>pid 43272 (myprocess), jid 0, uid 0: exited on signal 10 (core dumped) <4>Failed to fully fault in a core file segment at VA 0x82f15c000 with size 0x2000 to be written at offset 0x8db3000 for process myprocess <4>Failed to fully fault in a core file segment at VA 0x82fa00000 with size 0x3000 to be written at offset 0x95b1000 for process myprocess <4>Failed to fully fault in a core file segment at VA 0x83084d000 with size 0x5000 to be written at offset 0xa2fa000 for process myprocess <4>Failed to fully fault in a core file segment at VA 0x833e0a000 with size 0x7000 to be written at offset 0xd428000 for process myprocess <4>Failed to fully fault in a core file segment at VA 0x833e48000 with size 0x9000 to be written at offset 0xd453000 for process myprocess <4>Failed to fully fault in a core file segment at VA 0x837944000 with size 0x1000 to be written at offset 0x10a0d000 for process myprocess <4>Failed to fully fault in a core file segment at VA 0x83b954000 with size 0x7000 to be written at offset 0x14439000 for process myprocess <4>Failed to fully fault in a core file segment at VA 0x83c38a000 with size 0x5000 to be written at offset 0x14d8e000 for process myprocess <4>Failed to fully fault in a core file segment at VA 0x83c454000 with size 0xa000 to be written at offset 0x14e2b000 for process myprocess <4>Failed to fully fault in a core file segment at VA 0x83f575000 with size 0xe000 to be written at offset 0x17568000 for process myprocess <4>Failed to fully fault in a core file segment at VA 0x83f587000 with size 0x7000 to be written at offset 0x1757a000 for process myprocess <4>Failed to fully fault in a core file segment at VA 0x844a9e000 with size 0x1000 to be written at offset 0x1b026000 for process myprocess <4>Failed to fully fault in a core file segment at VA 0x8484c6000 with size 0x7000 to be written at offset 0x1c173000 for process myprocess <6>pid 43278 (myprocess), jid 0, uid 0: exited on signal 10 (core dumped) <6>pid 43295 (myprocess), jid 0, uid 0: exited on signal 10 (core dumped) <6>pid 43320 (myprocess), jid 0, uid 0: exited on signal 10 (core dumped) <4>Failed to fully fault in a core file segment at VA 0x835ec3000 with size 0x7000 to be written at offset 0xf1f6000 for process myprocess <4>Failed to fully fault in a core file segment at VA 0x837551000 with size 0x1000 to be written at offset 0x1065c000 for process myprocess <4>Failed to fully fault in a core file segment at VA 0x837833000 with size 0x3000 to be written at offset 0x1091e000 for process myprocess <4>Failed to fully fault in a core file segment at VA 0x837997000 with size 0x3000 to be written at offset 0x10a2e000 for process myprocess <4>Failed to fully fault in a core file segment at VA 0x837d33000 with size 0x6000 to be written at offset 0x10d66000 for process myprocess <4>Failed to fully fault in a core file segment at VA 0x83d257000 with size 0x1000 to be written at offset 0x159ea000 for process myprocess <4>Failed to fully fault in a core file segment at VA 0x83f4e2000 with size 0x6000 to be written at offset 0x174ac000 for process myprocess <4>Failed to fully fault in a core file segment at VA 0x840953000 with size 0xe000 to be written at offset 0x18608000 for process myprocess <4>Failed to fully fault in a core file segment at VA 0x8438bc000 with size 0x2000 to be written at offset 0x1a8da000 for process myprocess <6>pid 43332 (myprocess), jid 0, uid 0: exited on signal 10 (core dumped) panic: vm_fault: fault on nofault entry, addr: 0xfffffe0c928a2000 cpuid =3D 13 time =3D 1629122975 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe075c10c= b20 vpanic() at vpanic+0x17b/frame 0xfffffe075c10cb70 panic() at panic+0x43/frame 0xfffffe075c10cbd0 vm_fault() at vm_fault+0x24f2/frame 0xfffffe075c10cd20 vm_fault_trap() at vm_fault_trap+0x60/frame 0xfffffe075c10cd60 trap_pfault() at trap_pfault+0x19c/frame 0xfffffe075c10cdb0 trap() at trap+0x286/frame 0xfffffe075c10cec0 calltrap() at calltrap+0x8/frame 0xfffffe075c10cec0 --- trap 0xc, rip =3D 0xffffffff80b5c7cb, rsp =3D 0xfffffe075c10cf90, rbp = =3D 0xfffffe075c10cf90 --- cb_put_phdr() at cb_put_phdr+0x1b/frame 0xfffffe075c10cf90 each_dumpable_segment() at each_dumpable_segment+0x4d/frame 0xfffffe075c10c= fd0 elf64_coredump() at elf64_coredump+0x936/frame 0xfffffe075c10d0a0 sigexit() at sigexit+0xd96/frame 0xfffffe075c10d380 postsig() at postsig+0x2fd/frame 0xfffffe075c10d440 ast() at ast+0x317/frame 0xfffffe075c10d470 fast_syscall_common() at fast_syscall_common+0x18f/frame 0xfffffe075c10d470 --- syscall (0, FreeBSD ELF64, nosys), rip =3D 0x800a08611, rsp =3D 0x7fffc= 6d32d70, rbp =3D 0x7fffc6d32d88 --- KDB: enter: panic --=20 You are receiving this mail because: You are the assignee for the bug.=