Re: hal crash under 8.99.42

[Chavdar Ivanov <ci4ic4%gmail.com@localhost>]

На 2019-05-31 в 08:05, matthew green написа:
>> I don't seem to be able to get the core into gdb 8.3 either with target
>> kvm or with target kcore. How does one do this now with this version of
>> gdb?
> christos put the 'target kvm' support back in today.
> update and rebuild gdb and it should work again.

Yes, it works now.  

The panic I am having is indeed reproducible any time and looks like:

...

Reading symbols from netbsd.26...
(No debugging symbols found in netbsd.26)
(gdb) target kvm netbsd.26.core
0xffffffff80222c0a in cpu_reboot ()
(gdb) bt
#0  0xffffffff80222c0a in cpu_reboot ()
#1  0xffffffff80a0dda6 in vpanic ()
#2  0xffffffff80a0de57 in panic ()
#3  0xffffffff80224aa9 in trap ()
#4  0xffffffff8021d5f3 in alltraps ()
#5  0xffffffff8021dca5 in invlpg ()
#6  0x0000000000000001 in ?? ()
#7  0x0000ffff81ac5000 in ?? ()
#8  0xffffffff8024f971 in pmap_tlb_intr ()
#9  0xffffffff80209d67 in Xhandle_lapic_tlb ()
...

or, from the subsequent message:

.......


/netbsd: [ 5048.6693068] fatal protection fault in supervisor mode    
/netbsd: [ 5048.6693068] trap type 4 code 0 rip 0xffffffff8021dca5 cs
0x8 rflags 0x10002 cr2 0x7dbfb1db105c ilevel 0 rsp 0xffffae013a91ecc8
/netbsd: [ 5048.6693068] curlwp 0xffffda4a4d970240 pid 0.50 lowest
kstack 0xffffae013a91b2c0
/netbsd: [ 5048.6693068] fatal protection fault in supervisor mode
/netbsd: [ 5048.6693068] trap type 4 code 0 rip 0xffffffff8021dca5 cs
0x8 rflags 0x13002 cr2 0x7f7fefcbf000 ilevel 0 rsp 0xffffae013f537fb8
/netbsd: [ 5048.6693068] curlwp 0xffffda4d76b4b320 pid 1233.1 lowest
kstack 0xffffae013f5342c0
/netbsd: [ 5048.6693068] fatal protection fault in supervisor mode
/netbsd: [ 5048.6693068] trap type 4 code 0 rip 0xffffffff8021dca5 cs
0x8 rflags 0x10202 cr2 0xffffae013d14f5a0 ilevel 0x6 rsp 0xffffae01413baad8
/netbsd: [ 5048.6693068] curlwp 0xffffda4d55bd5680 pid 2027.1 lowest
kstack 0xffffae01413b72c0
/netbsd: [ 5048.6693068] fatal protection fault in supervisor mode
/netbsd: [ 5048.6693068] panic: trap
/netbsd: [ 5048.6693068] cpu6: Begin traceback...
/netbsd: [ 5048.6693068] fatal protection fault in supervisor mode
/netbsd: [ 5048.6693068] trap type 4 code 0 rip 0xffffffff8021dca5 cs
0x8 rflags 0x10002 cr2 0x7dbfb4c7b05c ilevel 0 rsp 0xffffae013a43adc8
/netbsd: [ 5048.6693068] curlwp 0xffffda4a4d7fc100 pid 0.20 lowest
kstack 0xffffae013a4372c0
/netbsd: [ 5048.6693068] fatal protection fault in supervisor mode
/netbsd: [ 5048.6693068] trap type 4 code 0 rip 0xffffffff8021dca5 cs
0x8 rflags 0x10002 cr2 0x1b58e852a5d0 ilevel 0 rsp 0xffffae014110efb8
/netbsd: [ 5048.6693068] curlwp 0xffffda4d493a2b60 pid 1679.1 lowest
kstack 0xffffae014110b2c0
/netbsd: [ 5048.6693068] fatal protection fault in supervisor mode
/netbsd: [ 5048.6693068] trap type 4 code 0 rip 0xffffffff8021dca5 cs
0x8 rflags 0x10002 cr2 0x75f1d5f757a0 ilevel 0 rsp 0xffffae013a87ade8
/netbsd: [ 5048.6693068] curlwp 0xffffda4a4d85c140 pid 0.26 lowest
kstack 0xffffae013a8772c0
/netbsd: [ 5048.6693068] trap type 4 code 0 rip 0xffffffff8021dca5 cs
0x8 rflags 0x10002 cr2 0xffffae013cd63000 ilevel 0 rsp 0xffffae013a8f5dc8
/netbsd: [ 5048.6693068] curlwp 0xffffda4a4d957200 pid 0.44 lowest
kstack 0xffffae013a8f22c0
/netbsd: [ 5048.6693068] vpanic() at fatal protection fault in
supervisor mode
/netbsd: [ 5048.6693068] trap type 4 code 0 rip 0xffffffff8021dca5 cs
0x8 rflags 0x10002 cr2 0x22cbe03ff000 ilevel 0x8 rsp 0xffffae013a8a3dc8
/netbsd: [ 5048.6693068] curlwp 0xffffda4a4d875180 pid 0.32 lowest
kstack 0xffffae013a8a02c0
/netbsd: [ 5048.6693068] netbsd:vpanic+0x160
/netbsd: [ 5048.6693068] snprintf() at netbsd:snprintf
/netbsd: [ 5048.6693068] startlwp() at netbsd:startlwp
/netbsd: [ 5048.6693068] alltraps() at netbsd:alltraps+0xc3
/netbsd: [ 5048.6693068] DDB lost frame for
netbsd:Xhandle_lapic_tlb+0x17, trying 0xffffae013a91ed10
/netbsd: [ 5048.6693068] Xhandle_lapic_tlb() at
netbsd:Xhandle_lapic_tlb+0x17
/netbsd: [ 5048.6693068] --- interrupt ---
/netbsd: [ 5048.6693068] 202:
/netbsd: [ 5048.6693068] cpu6: End traceback...
/netbsd:
/netbsd: [ 5048.6693068] dumping to dev 168,15 (offset=8, size=4152523):
/netbsd: [ 5048.6693068] dump succeeded

.....




>
>
> .mrg.