Google Git
Sign in
qemu / qemu / 7ea2d269cb84ca7a2f4b7c3735634176f7c1dc35
commit7ea2d269cb84ca7a2f4b7c3735634176f7c1dc35[log] [tgz]
authorAlexey Kardashevskiy <aik@ozlabs.ru>Thu Oct 09 13:50:46 2014 +1100
committerJuan Quintela <quintela@trasno.org>Tue Oct 14 09:35:21 2014 +0200
tree7db382cb3a25419bfafdfa8bfa8f8f248debe1bd
parent9935baca9b3573dfdb19aff03b3cbe1116350400 [diff]
block/migration: Disable cache invalidate for incoming migration

When migrated using libvirt with "--copy-storage-all", at the end of
migration there is race between NBD mirroring task trying to do flush
and migration completion, both end up invalidating cache. Since qcow2
driver does not handle this situation very well, random crashes happen.

This disables the BDRV_O_INCOMING flag for the block device being migrated
once the cache has been invalidated.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>

--

fixed parens by hand
Signed-off-by: Juan Quintela <quintela@redhat.com>
3 files changed
tree: 7db382cb3a25419bfafdfa8bfa8f8f248debe1bd
  1. audio/
  2. backends/
  3. block/
  4. bsd-user/
  5. default-configs/
  6. disas/
  7. docs/
  8. fpu/
  9. fsdev/
  10. gdb-xml/
  11. hw/
  12. include/
  13. libcacard/
  14. libdecnumber/
  15. linux-headers/
  16. linux-user/
  17. net/
  18. pc-bios/
  19. po/
  20. qapi/
  21. qga/
  22. qobject/
  23. qom/
  24. roms/
  25. scripts/
  26. slirp/
  27. stubs/
  28. sysconfigs/
  29. target-alpha/
  30. target-arm/
  31. target-cris/
  32. target-i386/
  33. target-lm32/
  34. target-m68k/
  35. target-microblaze/
  36. target-mips/
  37. target-moxie/
  38. target-openrisc/
  39. target-ppc/
  40. target-s390x/
  41. target-sh4/
  42. target-sparc/
  43. target-tricore/
  44. target-unicore32/
  45. target-xtensa/
  46. tcg/
  47. tests/
  48. trace/
  49. ui/
  50. util/
  51. dtc
  52. pixman
  53. .exrc
  54. .gitignore
  55. .gitmodules
  56. .mailmap
  57. .travis.yml
  58. accel.c
  59. aio-posix.c
  60. aio-win32.c
  61. arch_init.c
  62. async.c
  63. balloon.c
  64. block-migration.c
  65. block.c
  66. blockdev-nbd.c
  67. blockdev.c
  68. blockjob.c
  69. bt-host.c
  70. bt-vhci.c
  71. Changelog
  72. CODING_STYLE
  73. configure
  74. COPYING
  75. COPYING.LIB
  76. coroutine-gthread.c
  77. coroutine-sigaltstack.c
  78. coroutine-ucontext.c
  79. coroutine-win32.c
  80. cpu-exec.c
  81. cpus.c
  82. cputlb.c
  83. device-hotplug.c
  84. device_tree.c
  85. disas.c
  86. dma-helpers.c
  87. dump.c
  88. exec.c
  89. gdbstub.c
  90. HACKING
  91. hmp-commands.hx
  92. hmp.c
  93. hmp.h
  94. iohandler.c
  95. ioport.c
  96. iothread.c
  97. kvm-all.c
  98. kvm-stub.c
  99. LICENSE
  100. main-loop.c
  101. MAINTAINERS
  102. Makefile
  103. Makefile.objs
  104. Makefile.target
  105. memory.c
  106. memory_mapping.c
  107. migration-exec.c
  108. migration-fd.c
  109. migration-rdma.c
  110. migration-tcp.c
  111. migration-unix.c
  112. migration.c
  113. module-common.c
  114. monitor.c
  115. nbd.c
  116. numa.c
  117. os-posix.c
  118. os-win32.c
  119. page_cache.c
  120. qapi-schema.json
  121. qdev-monitor.c
  122. qdict-test-data.txt
  123. qemu-bridge-helper.c
  124. qemu-char.c
  125. qemu-coroutine-io.c
  126. qemu-coroutine-lock.c
  127. qemu-coroutine-sleep.c
  128. qemu-coroutine.c
  129. qemu-doc.texi
  130. qemu-file.c
  131. qemu-img-cmds.hx
  132. qemu-img.c
  133. qemu-img.texi
  134. qemu-io-cmds.c
  135. qemu-io.c
  136. qemu-log.c
  137. qemu-nbd.c
  138. qemu-nbd.texi
  139. qemu-options-wrapper.h
  140. qemu-options.h
  141. qemu-options.hx
  142. qemu-seccomp.c
  143. qemu-tech.texi
  144. qemu-timer.c
  145. qemu.nsi
  146. qemu.sasl
  147. qmp-commands.hx
  148. qmp.c
  149. qtest.c
  150. README
  151. rules.mak
  152. savevm.c
  153. softmmu_template.h
  154. spice-qemu-char.c
  155. tcg-runtime.c
  156. tci.c
  157. thread-pool.c
  158. thunk.c
  159. tpm.c
  160. trace-events
  161. translate-all.c
  162. translate-all.h
  163. user-exec.c
  164. VERSION
  165. version.rc
  166. vl.c
  167. vmstate.c
  168. xbzrle.c
  169. xen-common-stub.c
  170. xen-common.c
  171. xen-hvm-stub.c
  172. xen-hvm.c
  173. xen-mapcache.c