https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=220453
--- Comment #5 from p...@twisted.org.uk ---
Using what is about to become 11.2 I get a panic when I have the Mellanox
drivers loaded and accelerated networking enabled unfortunately:
Fatal trap 12: page fault while in kernel mode
cpuid = 2; apic id = 02
fault virtual address = 0x1d4
fault code = supervisor read data, page not present
instruction pointer = 0x20:0xffffffff80bb34b4
stack pointer = 0x28:0xfffffe03e27be9d0
frame pointer = 0x28:0xfffffe03e27be9d0
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 = 0 (vmbusdev)
trap number = 12
timeout stopping cpus
panic: page fault
cpuid = 2
KDB: stack backtrace:
#0 0xffffffff80b36697 at kdb_backtrace+0x67
#1 0xffffffff80af00f7 at vpanic+0x177
#2 0xffffffff80aeff73 at panic+0x43
#3 0xffffffff80f6ee0f at trap_fatal+0x35f
#4 0xffffffff80f6ee69 at trap_pfault+0x49
#5 0xffffffff80f6e636 at trap+0x2c6
#6 0xffffffff80f4e5ac at calltrap+0x8
#7 0xffffffff80ba6494 at namei+0x1b4
#8 0xffffffff80bc1d53 at vn_open_cred+0x233
#9 0xffffffff80ac31de at linker_load_module+0x47e
#10 0xffffffff80ac5061 at kern_kldload+0xc1
#11 0xffffffff8228b6f2 at mlx4_request_modules+0x92
#12 0xffffffff8228f986 at mlx4_load_one+0x3056
#13 0xffffffff82292c70 at mlx4_init_one+0x3c0
#14 0xffffffff82259ed5 at linux_pci_attach+0x405
#15 0xffffffff80b28e68 at device_attach+0x3b8
#16 0xffffffff80b2a0fd at bus_generic_attach+0x3d
#17 0xffffffff8076fac5 at pci_attach+0xd5
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