[adding back the ML, you probably hit reply instead of reply-all, this way other people might help if they know more] On Fri, Jun 02, 2017 at 08:10:01AM -0400, Michael C. Cambria wrote:
Hi, libvirtd never seems to get notified that there is work to do. journalct -f indicated that nothing was logged when connections were attempted via virsh. I also tried 'LIBVIRT_DEBUG=1 libvirtd --verbose' and once startup finished, there were no more log entries even though virsh attempts were made.
That's because it gets overridden by the configuration files. This might be a bug, but it's not related to what's happening.
"ps ax" shows about a dozen "qemu-system-alpha" processes. I don't know if it matters but I didn't expect to see this. I didn't intentionally configure alpha emulations (assuming that's what it is) and certainly don't want to waste resources having it running.
Libvirt caches the capabilities of the emulators it can find in your system in order not to waste resources. These processes are expected to go away after they reply with all libvirt asks them for. However, it seems like the initialization cannot be completed precisely due to the fact that these processes don't communicate. There might be some details about qemu-system-alpha that are different when compared to, e.g. qemu-system-x86 and libvirt is not (yet) adapted to them, but I installed that emulator and libvirt daemon runs as usual. It looks like a problem in QEMU. Could you, as a workaround, try uninstalling that qemu binary from your system and restarting the service? Also, what versions of libvirt and qemu do you have installed?
Here is gdb output:
$ sudo gdb -batch -p $(pidof libvirtd) -ex "t a a bt full" > batch.out
[mcc@eastie-fid4-com triage]$ cat batch.out
[New LWP 17587]
[New LWP 17588]
[New LWP 17589]
[New LWP 17590]
[New LWP 17591]
[New LWP 17592]
[New LWP 17593]
[New LWP 17594]
[New LWP 17595]
[New LWP 17596]
[New LWP 17597]
[New LWP 17598]
[New LWP 17599]
[New LWP 17600]
[New LWP 17601]
[New LWP 17602]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
0x00007fcd6b4a501d in poll () at ../sysdeps/unix/syscall-template.S:84
84 T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
Thread 17 (Thread 0x7fcd3bf18700 (LWP 17602)):
#0 0x00007fcd6b4a501d in poll () at ../sysdeps/unix/syscall-template.S:84
No locals.
#1 0x00007fcd6b4c310e in __poll_chk (fds=<optimized out>,
nfds=<optimized out>, timeout=<optimized out>, fdslen=<optimized out>)
at poll_chk.c:27
No locals.
#2 0x00007fcd6f07bf41 in poll (__timeout=-1, __nfds=<optimized out>,
__fds=0x7fcd3bf16ec0) at /usr/include/bits/poll2.h:41
No locals.
#3 virCommandProcessIO (cmd=cmd@entry=0x7fcd344228f0) at
util/vircommand.c:2049
i = <optimized out>
fds = {{fd = 22, events = 1, revents = 0}, {fd = 24, events =
1, revents = 0}, {fd = 1802946632, events = 32717, revents = 0}}
nfds = <optimized out>
outfd = <optimized out>
errfd = 24
inlen = 0
outlen = 0
errlen = 0
inoff = 0
ret = 0
__func__ = "virCommandProcessIO"
__FUNCTION__ = "virCommandProcessIO"
#4 0x00007fcd6f08025a in virCommandRun (cmd=cmd@entry=0x7fcd344228f0,
exitstatus=exitstatus@entry=0x7fcd3bf1749c) at util/vircommand.c:2274
ret = 0
outbuf = 0x7fcd341c1850 "`\030\034\064\315\177"
errbuf = 0x0
st = {st_dev = 140519450702688, st_ino = 5007254661694877440,
st_nlink = 140519321774352, st_mode = 1862726288, st_uid = 32717, st_gid
= 1865325018, __pad0 = 32717, st_rdev = 140732281970554, st_size = 0,
st_blksize = 11, st_blocks = 8, st_atim = {tv_sec = 140519321774368,
tv_nsec = 140519450703056}, st_mtim = {tv_sec = 140519321774352, tv_nsec
= 140519450703024}, st_ctim = {tv_sec = 140520244259750, tv_nsec =
140520310044608}, __glibc_reserved = {140520244259750, 140520310041179,
140519321774320}}
string_io = <optimized out>
async_io = <optimized out>
str = 0x7fcd3bf17420 "\260t\361;\315\177"
tmpfd = <optimized out>
__FUNCTION__ = "virCommandRun"
__func__ = "virCommandRun"
#5 0x00007fcd404a27cf in virQEMUCapsInitQMP (qmperr=0x7fcd3bf174a0,
runGid=107, runUid=107, libDir=<optimized out>, qemuCaps=0x7fcd340fd3e0)
at qemu/qemu_capabilities.c:3700
cmd = 0x7fcd344228f0
pid = 0
ret = -1
mon = 0x0
status = 0
monarg = 0x7fcd343a2570
"unix:/var/lib/libvirt/qemu/capabilities.monitor.sock,server,nowait"
vm = 0x0
config = {type = 9, data = {file = {path = 0x7fcd34151d90
"/var/lib/libvirt/qemu/capabilities.monitor.sock", append = 0}, nmdm =
{master = 0x7fcd34151d90
"/var/lib/libvirt/qemu/capabilities.monitor.sock", slave = 0x0}, tcp =
{host = 0x7fcd34151d90
"/var/lib/libvirt/qemu/capabilities.monitor.sock", service = 0x0, listen
= false, protocol = 0}, udp = {bindHost = 0x7fcd34151d90
"/var/lib/libvirt/qemu/capabilities.monitor.sock", bindService = 0x0,
connectHost = 0x0, connectService = 0x0}, nix = {path = 0x7fcd34151d90
"/var/lib/libvirt/qemu/capabilities.monitor.sock", listen = false},
spicevmc = 873799056, spiceport = {channel = 0x7fcd34151d90
"/var/lib/libvirt/qemu/capabilities.monitor.sock"}}, logfile = 0x0,
logappend = 0}
monpath = 0x7fcd34151d90
"/var/lib/libvirt/qemu/capabilities.monitor.sock"
pidfile = 0x7fcd341ad8b0
"/var/lib/libvirt/qemu/capabilities.pidfile"
xmlopt = 0x0
#6 virQEMUCapsNewForBinaryInternal (binary=binary@entry=0x7fcd34016cb0
"/usr/bin/qemu-system-alpha", libDir=<optimized out>,
cacheDir=0x7fcd343be860 "/var/cache/libvirt/qemu", runUid=107,
runGid=107, qmpOnly=qmpOnly@entry=false) at qemu/qemu_capabilities.c:3830
qemuCaps = 0x7fcd340fd3e0
sb = {st_dev = 64768, st_ino = 1838294, st_nlink = 1, st_mode =
33261, st_uid = 0, st_gid = 0, __pad0 = 0, st_rdev = 0, st_size =
8829680, st_blksize = 4096, st_blocks = 17248, st_atim = {tv_sec =
1496358589, tv_nsec = 77994286}, st_mtim = {tv_sec = 1492132244, tv_nsec
= 0}, st_ctim = {tv_sec = 1494196699, tv_nsec = 451929606},
__glibc_reserved = {0, 0, 0}}
rv = <optimized out>
qmperr = 0x7fcd341c1870 ""
__FUNCTION__ = "virQEMUCapsNewForBinaryInternal"
#7 0x00007fcd404a3a73 in virQEMUCapsNewForBinary (runGid=<optimized
out>, runUid=<optimized out>, cacheDir=<optimized out>,
libDir=<optimized out>, binary=0x7fcd34016cb0
"/usr/bin/qemu-system-alpha") at qemu/qemu_capabilities.c:3871
No locals.
#8 virQEMUCapsCacheLookup (cache=cache@entry=0x7fcd341c9000,
binary=0x7fcd34016cb0 "/usr/bin/qemu-system-alpha") at
qemu/qemu_capabilities.c:3986
ret = 0x0
__func__ = "virQEMUCapsCacheLookup"
#9 0x00007fcd404a3d22 in virQEMUCapsInitGuest
(guestarch=VIR_ARCH_ALPHA, hostarch=VIR_ARCH_X86_64,
cache=0x7fcd341c9000, caps=0x7fcd341a9980) at qemu/qemu_capabilities.c:824
qemubinCaps = 0x0
x86_32on64_kvm = <optimized out>
ppc64_kvm = <optimized out>
kvmbin = 0x0
ret = -1
i = <optimized out>
binary = 0x7fcd34016cb0 "/usr/bin/qemu-system-alpha"
kvmbinCaps = 0x0
native_kvm = <optimized out>
arm_32on64_kvm = <optimized out>
#10 virQEMUCapsInit (cache=0x7fcd341c9000) at qemu/qemu_capabilities.c:1109
caps = 0x7fcd341a9980
i = 1
hostarch = VIR_ARCH_X86_64
__func__ = "virQEMUCapsInit"
#11 0x00007fcd404def20 in virQEMUDriverCreateCapabilities
(driver=driver@entry=0x7fcd34342370) at qemu/qemu_conf.c:766
i = <optimized out>
j = <optimized out>
caps = <optimized out>
sec_managers = 0x0
doi = <optimized out>
model = <optimized out>
lbl = <optimized out>
type = <optimized out>
cfg = 0x7fcd3448cbb0
virtTypes = {3, 1}
__FUNCTION__ = "virQEMUDriverCreateCapabilities"
__func__ = "virQEMUDriverCreateCapabilities"
#12 0x00007fcd4051fef3 in qemuStateInitialize (privileged=true,
callback=<optimized out>, opaque=<optimized out>) at qemu/qemu_driver.c:844
driverConf = 0x0
conn = 0x0
cfg = 0x7fcd3448cbb0
run_uid = <optimized out>
run_gid = <optimized out>
hugepagePath = 0x0
i = <optimized out>
__FUNCTION__ = "qemuStateInitialize"
#13 0x00007fcd6f1789af in virStateInitialize (privileged=<optimized
out>, callback=0x55f56a9b3180 <daemonInhibitCallback>,
opaque=0x55f56be1cf00) at libvirt.c:770
i = 9
__func__ = "virStateInitialize"
#14 0x000055f56a9b31db in daemonRunStateInit (opaque=0x55f56be1cf00) at
libvirtd.c:959
dmn = 0x55f56be1cf00
sysident = 0x7fcd34000910
__func__ = "daemonRunStateInit"
#15 0x00007fcd6f0d98f2 in virThreadHelper (data=<optimized out>) at
util/virthread.c:206
args = 0x0
local = {func = 0x55f56a9b31a0 <daemonRunStateInit>, funcName =
0x55f56a9f28d3 "daemonRunStateInit", worker = false, opaque =
0x55f56be1cf00}
#16 0x00007fcd6b7766ca in start_thread (arg=0x7fcd3bf18700) at
pthread_create.c:333
__res = <optimized out>
pd = 0x7fcd3bf18700
now = <optimized out>
unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140519450707712,
-3574063505887647860, 0, 140732281962543, 140519450708416,
140519450707712, 3601779982174594956, 3601954753778231180},
mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev =
0x0, cleanup = 0x0, canceltype = 0}}}
not_first_call = <optimized out>
pagesize_m1 = <optimized out>
sp = <optimized out>
freesize = <optimized out>
__PRETTY_FUNCTION__ = "start_thread"
#17 0x00007fcd6b4b0f7f in clone () at
.../sysdeps/unix/sysv/linux/x86_64/clone.S:105
No locals.
[...]
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