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Re: WAPBL + xen3 amd64 = idle loop - [was: amd64 xen3_dom0 failing to boot - stalls (generic boots fine)]



Sarton O'Brien wrote:
So the two problems I've encountered are xen+wapbl cause idle loop and fstab entries for non-existent filesystems causing a panic.
Another idle loop situation occurred while attempting to attach an image to a vnd and then attempting to reboot (this time with a zombie- yay!):

^C^C^C^C


++++fatal breakpoint trap in supervisor mode
trap type 1 code 0 rip ffffffff80206e6d cs e030 rflags 202 cr2 7f7ffd9cc5c1 cpl
6 rsp ffffa000126679e8
Stopped in pid 0.2 (system) at  netbsd:breakpoint+0x5:  leave
breakpoint() at netbsd:breakpoint+0x5
xencons_tty_input() at netbsd:xencons_tty_input+0xc7
xencons_intr() at netbsd:xencons_intr+0x5f
evtchn_do_event() at netbsd:evtchn_do_event+0xbe
call_evtchn_do_event() at netbsd:call_evtchn_do_event+0xd
hypervisor_callback() at netbsd:hypervisor_callback+0xa3
idle_loop() at netbsd:idle_loop+0x148
ds          0xf2da
es          0
fs          0x33c0
gs          0xcba0
rdi         0xffffa00012819418
rsi         0xffffffff80bdb8f0  rbuf.11664
rbp         0xffffa000126679e8
rbx         0xffffffff80bdb8f0  rbuf.11664
rdx         0x2b
rcx         0xfe2b
rax         0x1
r8          0xffffffff80b2e480  cpu_info_primary
r9          0
r10         0x1
r11         0x246
r12         0xffffa00012819818
r13         0
r14         0x1
r15         0xffffa00012819418
rip         0xffffffff80206e6d  breakpoint+0x5
cs          0xe030
rflags      0x202
rsp         0xffffa000126679e8
ss          0xe02b
netbsd:breakpoint+0x5:  leave
db> ps/l
PID         LID S     FLAGS       STRUCT LWP *               NAME WAIT
15038         1 3         4   ffffa000185da3e0             reboot tstile
15398         1 3   9020004   ffffa0001870b420           vnconfig biolock
13988         1 3   9020004   ffffa000185da7c0          mount_ffs wapbl
1             1 3   8020084   ffffa000120fd420               init wait
>0            58 3       204   ffffa0001870b040               vnd1 vndbp
             57 5       204   ffffa000120f9ba0           (zombie)
             47 3       204   ffffa0001431f000            physiod physiod
46 3 204 ffffa0001430d420 vmem_rehash vmem_rehash
             45 3       204   ffffa0001430d800           aiodoned aiodoned
             44 3       204   ffffa0001430dbe0            ioflush tstile
             43 3       204   ffffa00014309020           pgdaemon pgdaemon
             42 3       204   ffffa00014309400            raidio0 raidiow
             41 3       204   ffffa000143097e0              raid0 rfwcond
             40 3       204   ffffa00014309bc0           xbdbackd xbdbackd
39 3 204 ffffa000120fdbe0 cryptoret crypto_wait
             36 3       204   ffffa000120fe000          atapibus0 sccomp
             34 3       204   ffffa000120fc020               usb4 usbevt
             33 3       204   ffffa000120fc400               usb3 usbevt
             32 3       204   ffffa000120fc7e0               usb2 usbevt
             31 3       204   ffffa000120fcbc0               usb1 usbevt
             30 3       204   ffffa000120fe3e0         usbtask-dr usbtsk
             29 3       204   ffffa000120fd800         usbtask-hc usbtsk
             28 3       204   ffffa000120fd040               usb0 usbevt
             27 3       204   ffffa000120fe7c0             xenbus rdst
             26 3       204   ffffa000120feba0           xenwatch evtsq
             17 3       204   ffffa000120f9000            atabus2 atath
             16 3       204   ffffa000120f93e0            atabus1 atath
             15 3       204   ffffa000120f97c0            atabus0 atath
             13 3       204   ffffa000120f1040             sysmon smtaskq
             12 3       204   ffffa000120f1420           pmfevent pmfevent
             11 3       204   ffffa000120f1800           nfssilly nfssilly
             10 3       204   ffffa000120f1be0            cachegc cachegc
              9 3       204   ffffa000120ee020              vrele vrele
              8 3       204   ffffa000120ee400          modunload modunload
              7 3       204   ffffa000120ee7e0            xcall/0 xcall
              6 1       204   ffffa000120eebc0          softser/0
              5 1       204   ffffa000120ec000          softclk/0
              4 1       204   ffffa000120ec3e0          softbio/0
              3 1       204   ffffa000120ec7c0          softnet/0
          >   2 7       205   ffffa000120ecba0             idle/0
              1 3       204   ffffffff80b725e0            swapper schedule
db> show event
evcnt type 0: bus_dma loads = 1520227
evcnt type 0: bus_dma nbouncebufs = 42
evcnt type 0: vmcmd kills = 8041
evcnt type 0: vmcmd extends = 1782
evcnt type 0: vmcmd calls = 72625
evcnt type 0: pdpolicy reactanon = 3263
evcnt type 0: pdpolicy reactfile = 67972
evcnt type 0: pdpolicy reactexec = 2842
evcnt type 0: softint net/0 = 52513
evcnt type 0: softint bio/0 = 1344878
evcnt type 0: softint clk/0 = 539724
evcnt type 0: softint ser/0 = 10921
evcnt type 0: callout late/0 = 164
evcnt type 0: crosscall unicast = 2
evcnt type 0: crosscall broadcast = 76
evcnt type 0: namecache entries scanned = 852454
evcnt type 0: namecache entries collected = 1069339
evcnt type 0: namecache over scan target = 993
evcnt type 0: namecache under scan target = 28177
evcnt type 0: namecache forced reclaims = 1613
evcnt type 1: vcpu0 xencons = 325
evcnt type 1: vcpu0 ioapic0 pin 17 = 45127
evcnt type 1: vcpu0 ioapic0 pin 21 = 28
evcnt type 1: vcpu0 ioapic0 = 17
evcnt type 1: vcpu0 ioapic0 pin 20 = 1483808
evcnt type 1: vcpu0 clock = 2968575
evcnt type 1: vcpu0 xenbus = 15099
db>

Guess I'm the only one running a current amd64/xen3/wapbl/vnd set up ... or _not_ as the case may be :)

Sarton


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