Hello,
The most recent CURRENT [r312928] with enabled kernel option TCP_RFC7413 panics
spontaneously:
Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 02
fault virtual address = 0x28
fault code = supervisor read data, page not present
instruction pointer = 0x20:0xffffffff808a4555
stack pointer = 0x28:0xfffffe083bf738b0
frame pointer = 0x28:0xfffffe083bf738d0
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 12 (swi4: clock (0))
[ thread pid 12 tid 100008 ]
Stopped at tcp_fastopen_autokey_locked+0x35: movq 0x28(%rax),%rax
db> bt
Tracing pid 12 tid 100008 td 0xfffff80007383500
tcp_fastopen_autokey_locked() at tcp_fastopen_autokey_locked+0x35/frame
0xfffffe083bf738d0
tcp_fastopen_autokey_callout() at tcp_fastopen_autokey_callout+0x2d/frame
0xfffffe083bf73900
softclock_call_cc() at softclock_call_cc+0x156/frame 0xfffffe083bf739b0
softclock() at softclock+0x94/frame 0xfffffe083bf739e0
intr_event_execute_handlers() at intr_event_execute_handlers+0x20f/frame
0xfffffe083bf73a20
ithread_loop() at ithread_loop+0xc6/frame 0xfffffe083bf73a70
fork_exit() at fork_exit+0x85/frame 0xfffffe083bf73ab0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe083bf73ab0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
db>
Thank you!
Alex Deiter
alex.dei...@gmail.com
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