Date: Wed, 28 Nov 2018 19:22:13 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 233617] kldunload if_ix could crash system in iflib Message-ID: <bug-233617-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D233617 Bug ID: 233617 Summary: kldunload if_ix could crash system in iflib Product: Base System Version: CURRENT Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: lev@FreeBSD.org I need to load and unload if_ix.ko due to its problems (PR233114). After several unloads and loads system crashes with: Fatal trap 12: page fault while in kernel mode cpuid =3D 0; apic id =3D 00 fault virtual address =3D 0x64 fault code =3D supervisor read data, page not present instruction pointer =3D 0x20:0xffffffff805e504d stack pointer =3D 0x28:0xfffffe00402f5790 frame pointer =3D 0x28:0xfffffe00402f57a0 code segment =3D base 0x0, limit 0xfffff, type 0x1b =3D DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags =3D resume, IOPL =3D 0 current process =3D 10 (idle: cpu0) trap number =3D 12 panic: page fault cpuid =3D 0 time =3D 1543431661 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe00402f5= 440 vpanic() at vpanic+0x1a3/frame 0xfffffe00402f54a0 panic() at panic+0x43/frame 0xfffffe00402f5500 trap_fatal() at trap_fatal+0x35f/frame 0xfffffe00402f5550 trap_pfault() at trap_pfault+0x49/frame 0xfffffe00402f55b0 trap() at trap+0x29e/frame 0xfffffe00402f56c0 calltrap() at calltrap+0x8/frame 0xfffffe00402f56c0 --- trap 0xc, rip =3D 0xffffffff805e504d, rsp =3D 0xfffffe00402f5790, rbp = =3D 0xfffffe00402f57a0 --- grouptaskqueue_enqueue() at grouptaskqueue_enqueue+0xd/frame 0xfffffe00402f= 57a0 iflib_fast_intr() at iflib_fast_intr+0x33/frame 0xfffffe00402f57c0 intr_event_handle() at intr_event_handle+0xbe/frame 0xfffffe00402f5810 intr_execute_handlers() at intr_execute_handlers+0x58/frame 0xfffffe00402f5= 840 lapic_handle_intr() at lapic_handle_intr+0x44/frame 0xfffffe00402f5860 Xapic_isr1() at Xapic_isr1+0xd9/frame 0xfffffe00402f5860 --- interrupt, rip =3D 0xffffffff8037699c, rsp =3D 0xfffffe00402f5930, rbp = =3D 0xfffffe00402f5970 --- acpi_cpu_idle() at acpi_cpu_idle+0x2bc/frame 0xfffffe00402f5970 cpu_idle_acpi() at cpu_idle_acpi+0x3f/frame 0xfffffe00402f5990 cpu_idle() at cpu_idle+0xa7/frame 0xfffffe00402f59b0 sched_idletd() at sched_idletd+0x515/frame 0xfffffe00402f5a70 fork_exit() at fork_exit+0x83/frame 0xfffffe00402f5ab0 fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00402f5ab0 --- trap 0, rip =3D 0, rsp =3D 0, rbp =3D 0 --- Uptime: 3h26m47s Dumping 935 out of 8144 MB:..2%..11%..21%..31%..42%..52%..62%..71%..81%..91% --=20 You are receiving this mail because: You are the assignee for the bug.=
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