Hi, could it be that the problem is related to pipex? My npppd.conf rely on the default pipex settings (on) But net.pipex.enable is 0 since I have no explicit settings in my /etc/sysctl.conf Under these conditions, I have no difficulty to crash the machine. With net.pipex.enable=1 I have not yet noticed any problem.
Cheers, On Tue, Apr 23, 2019 at 9:03 PM Olivier Antoine <[email protected]> wrote: > > On Tue, Apr 23, 2019 at 4:01 PM Martin Pieuchot <[email protected]> wrote: > > > The USB keyboard is then not functional to provide more information. > > > > Could you set the following in /etc/sysctl.conf: > > > > machdep.forceukbd=1 > > > > That should hopefully give you a functional keyboard in DDB. With that > > it would be nice to see ps, trace.. > > USB keyboard works now! Thanks. And dmesg kept history on warm reboot! > Great! But without ddb input. > I've typed 'ps', 'trace', 'mach ddbcpu 0', 'trace' and edit trace below. > > uvm_fault(0xd34e4e04, 0x0, 0, 2) -> e > kernel: page fault trap, code=0 > Stopped at kqueue_scan+0x246: movl %eax,0(%ecx) > > ddb>ps > PID TID PPID UID S FLAGS WAIT COMMAND > 89513 437697 16659 1000 3 0x100083 ttyin ksh > 16659 408882 51585 1000 3 0x90 select sshd > 51585 131494 11094 0 3 0x92 poll sshd > 83441 88878 54510 1000 3 0x100083 ttyin ksh > 35397 179689 93194 509 3 0x82 poll bitlbee > 18370 37576 93194 32767 3 0x100082 poll nc > 54326 495139 54453 1000 3 0x83 poll irssi > 54326 282579 54453 1000 3 0x4000083 poll irssi > 54453 417822 54510 1000 3 0x10008b pause ksh > 54510 355760 1 1000 3 0x100080 kqread tmux > 42801 333326 1 0 3 0x100083 ttyin getty > 32464 248590 1 0 3 0x100083 ttyin getty > 30691 252201 1 0 3 0x100083 ttyin getty > 68172 171527 1 0 3 0x100083 ttyin getty > 9923 2396 1 0 3 0x100083 ttyin getty > 72757 418845 1 0 3 0x100098 poll cron > 94232 270608 1 566 3 0x90 kqread tor > 61066 380412 1 99 3 0x100090 poll sndiod > 48037 106224 1 110 3 0x100090 poll sndiod > 93194 311760 1 0 3 0x100090 kqread inetd > 40141 303643 37303 95 3 0x100092 kqread smtpd > 49177 273097 37303 103 3 0x100092 kqread smtpd > 14136 436066 37303 95 3 0x100092 kqread smtpd > 43555 114382 37303 95 3 0x100092 kqread smtpd > 24076 293064 37303 95 3 0x100092 kqread smtpd > 39821 382366 37303 95 3 0x100092 kqread smtpd > 37303 419658 1 0 3 0x100080 kqread smtpd > 34615 65679 66951 94 3 0x100092 kqread rad > 27672 58256 66951 94 3 0x100092 kqread rad > 66951 350036 1 0 3 0x100080 kqread rad > 48906 239038 1 77 3 0x100090 poll dhcpd > 11094 239419 1 0 3 0x80 select sshd > 32082 523496 25690 0 3 0x80 netio npppd > *25690 329908 1 82 7 0x10 npppd > 53170 152811 39119 68 3 0x90 select isakmpd > 39119 178351 1 0 3 0x80 netio isakmpd > 33761 61404 1 0 3 0x100080 poll ntpd > 77281 283842 53057 83 3 0x100092 poll ntpd > 53057 157753 1 83 3 0x100092 poll ntpd > 29310 478555 82716 74 3 0x100092 bpf pflogd > 82716 393202 1 0 3 0x80 netio pflogd > 98294 140613 22386 73 2 0x100090 syslogd > 22386 352951 1 0 3 0x100082 netio syslogd > 42363 172181 1 77 3 0x100090 poll dhclient > 16574 286835 1 0 3 0x80 poll dhclient > 20288 509789 38319 115 3 0x100092 kqread slaacd > 14626 434941 38319 115 3 0x100092 kqread slaacd > 38319 486906 1 0 3 0x100080 kqread slaacd > 99619 63098 0 0 3 0x14280 schto i915/signal:0 > 61419 255834 0 0 3 0x14200 bored i915-userptr-acq > 52758 356166 0 0 3 0x14200 bored i915_modeset > 63752 394886 0 0 3 0x14200 bored i915-dp > 28426 1278 0 0 3 0x14200 bored i915 > 40838 107636 0 0 3 0x14200 pgzero zerothread > 85345 182218 0 0 3 0x14200 aiodoned aiodoned > 79526 249789 0 0 3 0x14200 syncer update > 77682 102635 0 0 3 0x14200 cleaner cleaner > 1527 169933 0 0 3 0x14200 reaper reaper > 27493 42773 0 0 3 0x14200 pgdaemon pagedaemon > 12828 137806 0 0 3 0x14200 bored srdis > 99385 151993 0 0 3 0x14200 bored crynlk > 75911 237067 0 0 3 0x14200 bored crypto > 37078 83962 0 0 3 0x14200 usbtsk usbtask > 97911 75679 0 0 3 0x14200 usbatsk usbatsk > 63855 236832 0 0 3 0x14200 bored drmtskl > 30522 145007 0 0 3 0x14200 bored drmlwq > 83412 71690 0 0 3 0x14200 bored drmubwq > 41239 484259 0 0 3 0x14200 bored drmwq > 97281 500218 0 0 3 0x14200 bored sensors > 31343 314304 0 0 3 0x40014200 acpi0 acpi0 > 75414 439743 0 0 3 0x40014200 idle1 > 33809 303054 0 0 7 0x14200 softnet > 3069 109594 0 0 3 0x14200 bored systqmp > 62451 272774 0 0 3 0x14200 bored systq > 34597 129188 0 0 3 0x40014200 bored softclock > 88092 315407 0 0 3 0x40014200 idle0 > 29326 170399 0 0 3 0x14200 bored smr > 61127 520207 0 0 3 0x14200 kmalloc kmthread > 1 516534 0 0 3 0x82 wait init > 0 0 -1 0 3 0x10200 scheduler swapper > ddb{1}> trace > kqueue_scan(d3453dd4,40,60aa5800,f5cbbab0,d3248a24,f5cbbaac) at > kqueue_scan+0x246 > sys_kevent(d3248a24,f5cbbbd0,f5cbbbc8) at sys_kevent+0x24f > syscall(f5cbbc10) at syscall+0x25e > Xsyscall_untramp(2b,200246,cf7f288c,33,0) at Xsyscall_untramp+0xa9 > end of kernel > ddb{1}> mach ddbcpu 0 > ddb{0}> trace > db_enter() at db_enter+0x4 > i386_ipi_handler() at i386_ipi_handler+0x3f > Xipi_untramp(50,200297,d365af40,0,f534e9f4) at Xipi_untramp+0xc2 > ___mp_lock(d0df41a0) at ___mp_lock+0x52 > intr_handler(f534ea04,d365af40) at intr_handler+0x1d > Xintr_ioapic3_untramp(50,200297,0,1,f534ea74) at Xintr_ioapic3_untramp+0xdf > _kernel_lock(d0bbfa80,52) at _kernel_lock+0x8e > softintr_dispatch(0) at softintr_dispatch+0x18 > Xsoftclock(8,200297,d32abad0,d32aba84,f534eae0) at Xsoftclock+0x12 > _kernel_lock(d0b71e8b,19a) at _kernel_lock+0x82 > sowakeup(d32aba84,d32abad0) at sowakeup+0x88 > sorwakeup(d32aba84) at sorwakeup+0x53 > tcp_input(f534ec5c,f534ec58,6,2) at tcp_input+0x33a5 > ip_deliver(f534ec5c,f534ec58,6,2) at ip_deliver+0x224 > ip_local(f534ec5c,f534ec58,d02af0da,0) at ip_local+0x142 > ipintr() at ipintr+0x58 > if_netisr(0) at if_netisr+0x65 > taskq_thread(d3501040) at > > > Hope this help! > > Cheers, > > -- > Olivier
