Date: Wed, 27 Feb 2019 23:15:37 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 234026] [panic] [dummynet] Repeatable panic in dummynet due to locking issues and use-after-free Message-ID: <bug-234026-7501-TMRPMMQLzv@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-234026-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-234026-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D234026 Stanislav Trofimov <noresponse@yandex.ru> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |noresponse@yandex.ru --- Comment #1 from Stanislav Trofimov <noresponse@yandex.ru> --- Hi Same problem on FreeBSD 12.0-RELEASE-p3 GENERIC Fatal trap 12: page fault while in kernel mode cpuid =3D 0; apic id =3D 00 fault virtual address =3D 0x0 fault code =3D supervisor read instruction, page not present instruction pointer =3D 0x20:0x0 stack pointer =3D 0x28:0xfffffe003ee448d0 frame pointer =3D 0x28:0xfffffe003ee44950 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 0 (dummynet) trap number =3D 12 panic: page fault cpuid =3D 0 time =3D 1551299285 KDB: stack backtrace: #0 0xffffffff80be7977 at kdb_backtrace+0x67 #1 0xffffffff80b9b563 at vpanic+0x1a3 #2 0xffffffff80b9b3b3 at panic+0x43 #3 0xffffffff8107496f at trap_fatal+0x35f #4 0xffffffff810749c9 at trap_pfault+0x49 #5 0xffffffff81073fee at trap+0x29e #6 0xffffffff8104f435 at calltrap+0x8 #7 0xffffffff80d26cdd at ip_input+0x45d #8 0xffffffff80cbc576 at netisr_dispatch_src+0xd6 #9 0xffffffff82e6ea1e at dummynet_send+0x1ae #10 0xffffffff82e6e3af at dummynet_task+0x2ef #11 0xffffffff80bf9cb4 at taskqueue_run_locked+0x154 #12 0xffffffff80bfae18 at taskqueue_thread_loop+0x98 #13 0xffffffff80b5bf33 at fork_exit+0x83 --=20 You are receiving this mail because: You are the assignee for the bug.=
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