Date: Wed, 14 Jul 2021 23:33:44 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 257195] [tcp] panic when RACK enabled Message-ID: <bug-257195-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D257195 Bug ID: 257195 Summary: [tcp] panic when RACK enabled Product: Base System Version: 13.0-STABLE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: iron.udjin@gmail.com Hello, I'm running latest 13-STABLE. I already mentioned panic #256538 but I could= n't reproduce and debug it. I think similar is described in #254735. So, on one of my servers every time kernel panics right after the server st= art up. Here is trace: Fatal trap 12: page fault while in kernel mode cpuid =3D 0; apic id =3D 00 fault virtual address =3D 0xffffffff0000002a fault code =3D supervisor read data, page not present instruction pointer =3D 0x20:0xffffffff81629071 stack pointer =3D 0x28:0xfffffe0202a046a0 frame pointer =3D 0x28:0xfffffe0202a04990 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 11 (swi1: hpts) trap number =3D 12 panic: page fault cpuid =3D 0 time =3D 1626303252 KDB: stack backtrace: #0 0xffffffff80646505 at kdb_backtrace+0x65 #1 0xffffffff80602661 at vpanic+0x181 #2 0xffffffff806024d3 at panic+0x43 #3 0xffffffff8085a857 at trap_fatal+0x387 #4 0xffffffff8085a8af at trap_pfault+0x4f #5 0xffffffff80859f63 at trap+0x253 #6 0xffffffff80833d8e at calltrap+0x8 #7 0xffffffff8075fc10 at tcp_hptsi+0x7d0 #8 0xffffffff80760ddc at tcp_hpts_thread+0x11c #9 0xffffffff805cb221 at ithread_loop+0x191 #10 0xffffffff805c8541 at fork_exit+0x71 #11 0xffffffff80834e1e at fork_trampoline+0xe Uptime: 27s Dumping 4308 out of 130940 MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%.= .91% __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:55 55 __asm("movq %%gs:%P1,%0" : "=3Dr" (td) : "n" (offsetof(stru= ct pcpu, (kgdb) bt #0 __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:55 #1 doadump (textdump=3D<optimized out>) at /usr/src/sys/kern/kern_shutdown= .c:399 #2 0xffffffff8060228e in kern_reboot (howto=3D260) at /usr/src/sys/kern/kern_shutdown.c:486 #3 0xffffffff806026d0 in vpanic (fmt=3D<optimized out>, ap=3D<optimized ou= t>) at /usr/src/sys/kern/kern_shutdown.c:919 #4 0xffffffff806024d3 in panic (fmt=3D<unavailable>) at /usr/src/sys/kern/kern_shutdown.c:843 #5 0xffffffff8085a857 in trap_fatal (frame=3D0xfffffe0202a045e0, eva=3D18446744069414584362) at /usr/src/sys/amd64/amd64/trap.c:943 #6 0xffffffff8085a8af in trap_pfault (frame=3Dframe@entry=3D0xfffffe0202a0= 45e0, usermode=3Dfalse, signo=3D<optimized out>, signo@entry=3D0x0, ucode=3D<opti= mized out>, ucode@entry=3D0x0) at /usr/src/sys/amd64/amd64/trap.c:760 #7 0xffffffff80859f63 in trap (frame=3D0xfffffe0202a045e0) at /usr/src/sys/amd64/amd64/trap.c:438 #8 <signal handler called> #9 0xffffffff81629071 in rack_output () from /boot/kernel/tcp_rack.ko #10 0xfffff805f2218e00 in ?? () #11 0x000c000000000000 in ?? () #12 0x0000000000000000 in ?? () (kgdb) Let me know if you need any other info. --=20 You are receiving this mail because: You are the assignee for the bug.=
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