qemu-system-* doesn't work

[jeffpc]

jeffpc@meili:/tmp$ qemu-img create -f qcow2 test 10g
Formatting 'test', fmt=qcow2 size=10737418240 encryption=off cluster_size=65536 lazy_refcounts=off 
jeffpc@meili:/tmp$ qemu-system-sparc64 -hda test -cdrom ~/Downloads/debian-7.5.0-sparc-CD-1.iso
Assertion failed: qemu_in_coroutine(), file qemu-coroutine-lock.c, line 150, function qemu_co_mutex_unlock

At this point, qemu hangs here, so I hit ctrl-\ to kill it.

^\Quit (core dumped)
jeffpc@meili:/tmp$ pstack core
core 'core' of 14069:   qemu-system-sparc64 -hda test -cdrom /home/jeffpc/Downloads/debian-7.5
-----------------  lwp# 1 / thread# 1  --------------------
 fffffd7fff19a467 __lwp_park () + 17
 fffffd7fff191e81 mutex_lock_impl () + 181
 fffffd7fff191fb4 mutex_lock () + c
 00000000006c4f9a qemu_mutex_lock () + 1a
 000000000063ba86 qemu_mutex_lock_iothread () + 86
 00000000005c4a33 main_loop_wait () + 173
 00000000006db421 main () + 11e1
 00000000004dbdec _start () + 6c
-----------------  lwp# 2 / thread# 2  --------------------
 fffffd7fff1a26ca __sigtimedwait () + a
 fffffd7fff18b907 sigwait () + f
 fffffd7fff17443a __posix_sigwait () + 32
 00000000006c8638 sigwait_compat () + 38
 fffffd7fff19a154 _thrp_setup () + bc
 fffffd7fff19a420 _lwp_start ()
-----------------  lwp# 4 / thread# 4  --------------------
 fffffd7fff1a34ba _lwp_kill () + a
 fffffd7fff12b6e1 raise () + 19
 fffffd7fff100a61 abort () + d9
 fffffd7fff100e64 _assert_c99 () + 8c
 00000000005f4945 qemu_co_mutex_unlock () + 45
 000000000050537e qcow2_co_readv () + 21e
 00000000004ee0a4 bdrv_co_do_readv () + f4
 00000000004eea95 bdrv_co_do_rw () + 75
 0000000000529a9a coroutine_trampoline () + 4a
 fffffd7fff0e4e70 resumecontext ()
-----------------  lwp# 5 / thread# 5  --------------------
 fffffd7fff19a467 __lwp_park () + 17
 fffffd7fff1937f0 cond_wait_queue () + 68
 fffffd7fff193c59 cond_wait_common () + 1e1
 fffffd7fff193f13 __cond_timedwait () + ab
 fffffd7fff193f5f cond_timedwait () + 27
 fffffd7ffea38538 umem_update_thread () + 1a8
 fffffd7fff19a154 _thrp_setup () + bc
 fffffd7fff19a420 _lwp_start ()

The other qemu-system-foo binaries are broken too.

qemu-1.7.0 on OpenIndiana with http://pkgsrc.joyent.com/packages/SmartOS/2014Q1/x86_64/All.

[rmustacc]

We likely should be disable the couroutine backend entirely.

[rmustacc]

Erroneous github auto close.

[mamash]

Erroneous github auto close.

[wiedi]

The coroutine pool is disabled in 8a62c7a745f03d9b1e2d21df3dbf838d0594d8a5.