Hello Michael, On 18.05.23 11:55, Matthias Petermann wrote:
Hello Michael, On 18.05.23 09:49, Michael van Elst wrote:mp%petermann-it.de@localhost (Matthias Petermann) writes:PID USERNAME PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND433 root 95 0 100M 68M vndpc 0:03 0.00% 0.00% tar 0 root 96 0 0K 31M uvnfp1 0:02 0.00% 0.00% [system]That already tells that you ran out of memory. Are you sure it's a deadlock and not "just" very slow ?First of all, thank you very much for your assistance on IRC. The current status is that it indeed seems to be a deadlock.You had recommended requesting a backtrace of the vnd0 threads as the next step.I will try to get this done next, but I need to switch systems and set up another one that has a working console or the option for a serial console. Unfortunately, I'm quite limited on the NUC at the moment. Once I'm ready, I will get back to you at this point.
I now have a functional serial console on the other computer, but fortunately, I can reproduce the problem exactly there as well. In the meantime, I have also discovered that I need to press the "+" key 5 times in the serial console to send a break and enter the kernel debugger. With that, I have pulled the backtrace of (hopefully the correct) thread and attached it to this email.
Best regards Matthias ---------------------------------------------------------------------- login: ++++[ 136.6327721] fatal breakpoint trap in supervisor mode[ 136.6327721] trap type 1 code 0 rip 0xffffffff8024196d cs 0xe030 rflags 0x202 cr2 0x7971a5cff000 ilevel 0x6 rsp 0xffffb5804103fbf8 [ 136.6327721] curlwp 0xffffb58000ff8040 pid 0.2 lowest kstack 0xffffb5804103b2c0
Stopped in pid 0.2 (system) at netbsd:breakpoint+0x5: leave
breakpoint() at netbsd:breakpoint+0x5
xencons_tty_input() at netbsd:xencons_tty_input+0xb2
xencons_intr() at netbsd:xencons_intr+0x50
xen_intr_biglock_wrapper() at netbsd:xen_intr_biglock_wrapper+0x1b
evtchn_do_event() at netbsd:evtchn_do_event+0x118
do_hypervisor_callback() at netbsd:do_hypervisor_callback+0x167
Xhandle_hypervisor_callback() at netbsd:Xhandle_hypervisor_callback+0x1a
--- interrupt ---
hypercall_page() at netbsd:hypercall_page+0x3aa
idle_loop() at netbsd:idle_loop+0x146
ds 0
es 7780
fs cb79
gs fbf8
rdi ffffb580012c6080
rsi ffffffff8128fe70 rbuf.0
rbp ffffb5804103fbf8
rbx ffffffff8128fe70 rbuf.0
rdx 2b
rcx 2b
rax 1
r8 349a
r9 0
r10 0
r11 246
r12 ffffb580012c7780
r13 ffffb580012c6080
r14 ffffffff8128fe71 rbuf.0+0x1
r15 ffffb580012c5200
rip ffffffff8024196d breakpoint+0x5
cs e030
rflags 202
rsp ffffb5804103fbf8
ss e02b
netbsd:breakpoint+0x5: leave
----------------------------------------------------------------------
db{0}> bt
breakpoint() at netbsd:breakpoint+0x5
xencons_tty_input() at netbsd:xencons_tty_input+0xb2
xencons_intr() at netbsd:xencons_intr+0x50
xen_intr_biglock_wrapper() at netbsd:xen_intr_biglock_wrapper+0x1b
evtchn_do_event() at netbsd:evtchn_do_event+0x118
do_hypervisor_callback() at netbsd:do_hypervisor_callback+0x167
Xhandle_hypervisor_callback() at netbsd:Xhandle_hypervisor_callback+0x1a
--- interrupt ---
hypercall_page() at netbsd:hypercall_page+0x3aa
idle_loop() at netbsd:idle_loop+0x146
db{0}> ps
PID LID S CPU FLAGS STRUCT LWP * NAME WAIT
598 598 3 0 0 ffffb58002d85780 tar vndpc
580 580 3 0 180 ffffb58002d85340 top select
1718 1718 3 0 180 ffffb58002d2eb80 ksh pause
443 443 3 0 180 ffffb580028f7b40 ksh pause
1529 1529 3 0 180 ffffb58002d2e300 tmux kqueue
2168 2168 3 0 180 ffffb58001628540 tmux kqueue
436 436 3 0 180 ffffb58001858a40 ksh pause
431 431 3 0 180 ffffb580016c59c0 sshd poll
433 433 3 0 180 ffffb580016c5140 sshd poll
425 425 3 0 180 ffffb58001ef2a80 ntpd netio
428 428 3 0 180 ffffb580023866c0 getty ttyraw
427 427 3 0 180 ffffb58002386280 getty ttyraw
424 424 3 0 180 ffffb58001628980 getty ttyraw
1881 1881 3 0 180 ffffb580013fc240 getty ttyraw
1249 1249 3 0 180 ffffb580028f7700 cron nanoslp
467 467 3 0 180 ffffb58001ef2200 inetd kqueue
460 460 3 0 180 ffffb58002386b00 qmgr kqueue
459 459 3 0 180 ffffb58001ef2640 pickup kqueue
457 457 3 0 180 ffffb580028f72c0 master kqueue
173 173 3 0 180 ffffb58001f19ac0 sshd poll
1567 1567 3 0 180 ffffb58001f19240 powerd kqueue
348 348 3 0 180 ffffb58001f19680 ntpd pause
193 195 3 0 180 ffffb580017385c0 xenconsoled netio
193 193 3 0 180 ffffb580016c5580 xenconsoled poll
1720 1720 3 0 180 ffffb58001858600 xenstored poll
1081 1081 3 0 180 ffffb58001738a00 syslogd kqueue
1 1 3 0 180 ffffb580015288c0 init wait
0 306 3 0 200 ffffb580012c9180 vnd0 uvnfp1
0 1824 3 0 200 ffffb580018581c0 xen_balloon xen_balloon
0 801 3 0 200 ffffb58001738180 bridge_rtage
bridge_rtage
0 156 3 0 200 ffffb580016270c0 physiod physiod 0 124 3 0 200 ffffb58001628100 pooldrain pooldrain 0 123 3 0 240 ffffb58001627940 ioflush tstile 0 122 3 0 200 ffffb58001627500 pgdaemon vndpc 0 119 3 0 200 ffffb58001539900 atapibus0 sccomp 0 116 3 0 200 ffffb580013f2a80 usb3 usbevt 0 115 3 0 200 ffffb580015394c0 usb2 usbevt 0 114 3 0 200 ffffb58001539080 npfgc0 npfgcw 0 113 3 0 200 ffffb58001528480 rt_free rt_free 0 112 3 0 200 ffffb58001528040 unpgc unpgc0 111 3 0 200 ffffb58001501bc0 key_timehandler key_timehandler
0 110 3 0 200 ffffb58001501780 icmp6_wqinput/0 icmp6_wqinput
0 109 3 0 200 ffffb580013fc680 nd6_timer nd6_timer0 108 3 0 200 ffffb580013fcac0 carp6_wqinput/0 carp6_wqinput 0 107 3 0 200 ffffb580013fd280 carp_wqinput/0 carp_wqinput 0 106 3 0 200 ffffb580013fd6c0 icmp_wqinput/0 icmp_wqinput
0 105 3 0 200 ffffb580013fdb00 rt_timer rt_timer
0 104 3 0 200 ffffb580014002c0 vmem_rehash vmem_rehash
0 103 3 0 200 ffffb58001501340 usb1 usbevt
0 102 3 0 200 ffffb58001403b80 usb0 usbevt
0 101 3 0 200 ffffb58001403740 xenbus xsio
0 100 3 0 200 ffffb58001403300 xenwatch evtsq
0 99 3 0 200 ffffb58001400b40 acpitz1 acpitz1
0 98 3 0 200 ffffb58001400700 acpitz0 acpitz0
0 24 3 0 200 ffffb580013f2640 entbutler entropy
0 23 3 0 240 ffffb580013f2200 atabus1 atath
0 22 3 0 240 ffffb580013cca40 atabus0 atath
0 21 3 0 200 ffffb580013cc600 wm0Reset wm0Reset
0 20 3 0 200 ffffb580013cc1c0 wm0TxRx/0 wm0TxRx
0 19 3 0 200 ffffb580012c9a00 usbtask-dr usbtsk
0 18 3 0 200 ffffb580012c95c0 usbtask-hc usbtsk
0 16 3 0 200 ffffb580010119c0 sysmon smtaskq
0 15 3 0 200 ffffb58001011580 pmfsuspend pmfsuspend
0 14 3 0 200 ffffb58001011140 pmfevent pmfevent
0 13 3 0 200 ffffb5800100e980 sopendfree sopendfr
0 12 3 0 200 ffffb5800100e540 ifwdog ifwdog
0 11 3 0 200 ffffb5800100e100 iflnkst iflnkst
0 10 3 0 200 ffffb58001003940 nfssilly nfssilly
0 9 3 0 200 ffffb58001003500 vdrain vdrain
0 8 3 0 200 ffffb580010030c0 modunload mod_unld
0 7 3 0 200 ffffb58000ffb900 xcall/0 xcall
0 6 1 0 200 ffffb58000ffb4c0 softser/0
0 5 1 0 200 ffffb58000ffb080 softclk/0
0 4 1 0 200 ffffb58000ff88c0 softbio/0
0 3 1 0 200 ffffb58000ff8480 softnet/0
0 > 2 1 0 201 ffffb58000ff8040 idle/0
0 0 3 0 200 ffffffff81140480 swapper uvm
----------------------------------------------------------------------
db{0}> bt ffffb580012c9180
sleepq_locks() at ffffffff81167300
----------------------------------------------------------------------
db{0}> bt/a ffffb580012c9180
trace: pid 0 lid 306 at 0xffffb5805201e7b0
sleepq_block() at netbsd:sleepq_block+0x13a
mtsleep() at netbsd:mtsleep+0x17f
uvn_findpage() at netbsd:uvn_findpage+0x20a
uvn_findpages() at netbsd:uvn_findpages+0xdd
genfs_getpages() at netbsd:genfs_getpages+0x6a7
VOP_GETPAGES() at netbsd:VOP_GETPAGES+0x52
ufs_balloc_range() at netbsd:ufs_balloc_range+0x114
ffs_write() at netbsd:ffs_write+0x346
VOP_WRITE() at netbsd:VOP_WRITE+0xf3
vn_rdwr() at netbsd:vn_rdwr+0xc9
vndthread() at netbsd:vndthread+0x6d8
db{0}>
Attachment:
smime.p7s
Description: S/MIME Cryptographic Signature