Apparently out of nothing, one of our servers paniced.
uname -a gives: | NetBSD trave.math.uni-bonn.de 8.2_STABLE NetBSD 8.2_STABLE (MI-Server) #17: Fri Jul 16 14:01:03 CEST 2021 supp...@trave.math.uni-bonn.de:/var/work/obj-8/sys/arch/amd64/compile/miserv amd64 I've transcribed the panic message and backtrace: | ohci0: 1 scheduling overruns | ugen0: detached | ugen0: at uhub4 port 2 (addr 2) disconnected | ugen0 at uhub4 port 2 | ugen0: Phoenixtec Power (0x6da) USB Cable (V2.00) (0x02), rev 1.00/0.06, addr 2 | uvm_fault(0xfffffe82574c2458, 0x0, 1) -> e | fatal page fault in supervisor mode | trap type 6 code 0 rip 0xffffffff802f627e cs 0x8 rflags 0x10246 cr2 0x2 ilevel 6 (NB: could be ilevel 0 as well) rsp 0xffff80013f482c10 | curlwp 0xfffffe83002b2000 pid 8393.1 lowest kstack 0xffff80013f4802c0 | kernel: page fault trap, code=0 | Stopped in pid 8393.1 (nutdrv_qx_usb) at netbsd:ugen_get_cdesc+0xb1: | movzwl 2(%rax),%edx | db{2}> bt | ugen_get_cdesc() at netbsd:ugen_get_cdesc+0xb1 | ugenioctl() at netbsd:ugenioctl+0x9a4 | cdev_ioctl() at netbsd:cdev_ioctl+0xb4 | VOP_IOCTL() at netbsd:VOP_IOCTL+0x54 | vn_ioctl() at netbsd:vn_ioctl+0xa6 | sys_ioctl() at netbsd:sys_ioctl+0x11a | syscall() at netbsd:syscall+0x1ec | --- syscall (number 54) --- | 7a73c9eff13a: | db{2}> Any idea what's going on? Cheers Timo Buhrmester