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Philippe Mathieu-Daudé 47281859f6 main-loop: Disable block backend global state assertion on Cocoa 
Since commit 0439c5a462 ("block/block-backend.c: assertions for
block-backend") QEMU crashes when using Cocoa on Darwin hosts.

Example on macOS:

  $ qemu-system-i386
  Assertion failed: (qemu_in_main_thread()), function blk_all_next, file block-backend.c, line 552.
  Abort trap: 6

Looking with lldb:

  Assertion failed: (qemu_in_main_thread()), function blk_all_next, file block-backend.c, line 552.
  Process 76914 stopped
  * thread #1, queue = 'com.apple.main-thread', stop reason = hit program assert
     frame #4: 0x000000010057c2d4 qemu-system-i386`blk_all_next.cold.1
  at block-backend.c:552:5 [opt]
      549    */
      550   BlockBackend *blk_all_next(BlockBackend *blk)
      551   {
  --> 552       GLOBAL_STATE_CODE();
      553       return blk ? QTAILQ_NEXT(blk, link)
      554                  : QTAILQ_FIRST(&block_backends);
      555   }
  Target 1: (qemu-system-i386) stopped.

  (lldb) bt
  * thread #1, queue = 'com.apple.main-thread', stop reason = hit program assert
     frame #0: 0x00000001908c99b8 libsystem_kernel.dylib`__pthread_kill + 8
     frame #1: 0x00000001908fceb0 libsystem_pthread.dylib`pthread_kill + 288
     frame #2: 0x000000019083a314 libsystem_c.dylib`abort + 164
     frame #3: 0x000000019083972c libsystem_c.dylib`__assert_rtn + 300
   * frame #4: 0x000000010057c2d4 qemu-system-i386`blk_all_next.cold.1 at block-backend.c:552:5 [opt]
     frame #5: 0x00000001003c00b4 qemu-system-i386`blk_all_next(blk=<unavailable>) at block-backend.c:552:5 [opt]
     frame #6: 0x00000001003d8f04 qemu-system-i386`qmp_query_block(errp=0x0000000000000000) at qapi.c:591:16 [opt]
     frame #7: 0x000000010003ab0c qemu-system-i386`main [inlined] addRemovableDevicesMenuItems at cocoa.m:1756:21 [opt]
     frame #8: 0x000000010003ab04 qemu-system-i386`main(argc=<unavailable>, argv=<unavailable>) at cocoa.m:1980:5 [opt]
     frame #9: 0x00000001012690f4 dyld`start + 520

As we are in passed release 7.0 hard freeze, disable the block
backend assertion which, while being valuable during development,
is not helpful to users. We'll restore this assertion immediately
once 7.0 is released and work on a fix.

Suggested-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20220325183707.85733-1-philippe.mathieu.daude@gmail.com>
2022-03-29 00:41:46 +02:00
..
authz Prefer 'on' | 'off' over 'yes' | 'no' for bool options 2021-01-29 17:07:53 +00:00
block block: pass desired TLS hostname through from block driver client 2022-03-07 15:58:42 -06:00
chardev Replace GCC_FMT_ATTR with G_GNUC_PRINTF 2022-03-22 14:40:51 +04:00
crypto crypto: Make QCryptoTLSCreds* structures private 2021-06-29 18:30:24 +01:00
disas Replace GCC_FMT_ATTR with G_GNUC_PRINTF 2022-03-22 14:40:51 +04:00
exec softmmu/physmem: Introduce MemTxAttrs::memory field and MEMTX_ACCESS_ERROR 2022-03-21 10:10:58 +01:00
fpu softfloat: Add float64r32 arithmetic routines 2021-12-17 17:57:15 +01:00
hw Replace GCC_FMT_ATTR with G_GNUC_PRINTF 2022-03-22 14:40:51 +04:00
io io: add qio_channel_readv_full_all_eof & qio_channel_readv_full_all helpers 2021-02-10 09:23:28 +00:00
libdecnumber libdecnumber: Introduce decNumberIntegralToInt128 2021-11-09 10:32:52 +11:00
migration migration: Remove load_state_old and minimum_version_id_old 2022-03-02 18:20:45 +00:00
monitor Replace GCC_FMT_ATTR with G_GNUC_PRINTF 2022-03-22 14:40:51 +04:00
net Revert "virtio-net: add support for configure interrupt" 2022-01-10 16:00:54 -05:00
qapi Replace GCC_FMT_ATTR with G_GNUC_PRINTF 2022-03-22 14:40:51 +04:00
qemu main-loop: Disable block backend global state assertion on Cocoa 2022-03-29 00:41:46 +02:00
qom compiler.h: replace QEMU_SENTINEL with G_GNUC_NULL_TERMINATED 2022-03-22 14:40:51 +04:00
scsi scsi: inline sg_io_sense_from_errno() into the callers. 2021-03-06 11:42:56 +01:00
semihosting semihosting: Move include/hw/semihosting/ -> include/semihosting/ 2021-03-10 15:34:12 +00:00
standard-headers headers: Add pvpanic.h 2022-03-06 05:08:23 -05:00
sysemu softmmu: List CPU types again 2022-03-16 08:43:10 +01:00
tcg tcg: Add opcodes for vector nand, nor, eqv 2022-03-04 08:50:41 -10:00
ui ui/dbus: fix texture sharing 2022-03-15 12:54:55 +04:00
user common-user: Move safe-syscall.* from linux-user 2021-12-20 10:12:24 -08:00
elf.h elf: Add machine type value for LoongArch 2021-12-21 13:17:06 -08:00
glib-compat.h docs/devel: more documentation on the use of suffixes 2022-01-18 16:42:42 +00:00
qemu-common.h util: remove the net/net.h dependency 2022-03-22 14:46:17 +04:00
qemu-io.h Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00