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Re: port-xen/53074: Daily 8.99.12 DOMU panic

Sorry..  I had not noticed that there was a reply to this.  I updated
the DOMU guest that has the panic to 8.99.23 and it still does it.
However, the backtrace may be more useful.  I suspect that the bug I
found was noted again by someone else recently and may be the same as
the more recent kern/53506.  In any case, here is a new backtrace:

[ 1085.6009218] panic: biodone2 already
[ 1085.6009218] cpu0: Begin traceback...
[ 1085.6009218] vpanic() at netbsd:vpanic+0x152
[ 1085.6009218] snprintf() at netbsd:snprintf
[ 1085.6009218] biointr() at netbsd:biointr
[ 1085.6009218] biointr() at netbsd:biointr+0x5b
[ 1085.6009218] softint_thread() at netbsd:softint_thread+0x97
[ 1085.6009218] cpu0: End traceback...
[ 1085.6009218] fatal breakpoint trap in supervisor mode
[ 1085.6009218] trap type 1 code 0 rip 0xffffffff80205855 cs 0xe030 rflags 0x202 cr2 0xffffa0002b88d267 ilevel 0 rsp 0xffffa0002b359dc0
[ 1085.6009218] curlwp 0xffffa00000743000 pid 0.4 lowest kstack 0xffffa0002b3552c0
Stopped in pid 0.4 (system) at  netbsd:breakpoint+0x5:  leave
breakpoint() at netbsd:breakpoint+0x5
vpanic() at netbsd:vpanic+0x152
snprintf() at netbsd:snprintf
biointr() at netbsd:biointr
biointr() at netbsd:biointr+0x5b
softint_thread() at netbsd:softint_thread+0x97
ds          ffff
es          0
fs          9dd0
gs          9d70
rdi         0
rsi         a
rbp         ffffa0002b359dc0
rbx         104
rdx         1
rcx         0
rax         0
r8          ffffffff80704540    cpu_info_primary
r9          cccccccccccccccd
r10         75
r11         ffffffff805d97f8    ptp_shifts+0x18
r12         ffffffff8065dd8f    ostype+0x463af
r13         ffffa0002b359e08
r14         ffffffff8065dc25    ostype+0x46245
r15         ffffa00000743000
rip         ffffffff80205855    breakpoint+0x5
cs          e030
rflags      202
rsp         ffffa0002b359dc0
ss          e02b
netbsd:breakpoint+0x5:  leave

This panic is being tripped by a line much line this:

/sbin/dump -0u -a -f - / | ssh backup@backupsystem "/usr/pkg/bin/buffer | /usr/bin/bzip2 -9c > /sp/HOSTS/domu_guest_that_panics/x.bz2"

Brad Spencer - - KC8VKS -

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