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Stefan Hajnoczi 293c51a6ee blockdev: reset werror/rerror on drive_del 
Paolo Bonzini <pbonzini@redhat.com> suggested the following test case:

1. Launch a guest and wait at the GRUB boot menu:

  qemu-system-x86_64 -enable-kvm -m 1024 \
   -drive if=none,cache=none,file=test.img,id=foo,werror=stop,rerror=stop
   -device virtio-blk-pci,drive=foo,id=virtio0,addr=4

2. Hot unplug the device:

  (qemu) drive_del foo

3. Select the first boot menu entry

Without this patch the guest pauses due to ENOMEDIUM.  The guest is
stuck in a continuous pause loop since the I/O request is retried and
fails immediately again when the guest is resumed.

With this patch the error is reported to the guest.

Note that this scenario actually happens sometimes during libvirt disk
hot unplug, where device_del is followed by drive_del.  I/O may still be
submitted to the drive after drive_del if the guest does not process the
PCI hot unplug notification.

Reported-by: Dafna Ron <dron@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
 		2013-06-05 16:39:59 +02:00
QMP qmp: fix handling of cmd with Equals in qmp-shell 2013-05-15 08:58:43 -04:00
audio Remove OSS support for OpenBSD 2013-05-26 11:14:52 +00:00
backends rng random backend: check for -EAGAIN errors on read 2013-04-16 16:10:21 -05:00
block block: dump snapshot and image info to specified output 2013-06-04 13:56:30 +02:00
bsd-user bsd-user: OS-agnostic 64-bit SYSCTL types 2013-05-12 13:25:55 +04:00
default-configs audio: Enable all cards 2013-05-03 12:04:49 -05:00
disas tcg-arm: Implement division instructions 2013-04-27 02:16:44 +02:00
docs docs: Fix typo and update file in migration 2013-06-01 14:25:38 +04:00
dtc@bc895d6d09 dtc: add submodule 2013-04-18 13:50:53 +02:00
fpu fpu: Correct edgecase in float64_muladd 2013-04-15 16:06:15 +02:00
fsdev remove double semicolons 2013-05-12 13:25:55 +04:00
gdb-xml
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hw Merge remote-tracking branch 'sstabellini/xen_fixes_20130603' into staging 2013-06-04 14:58:58 -05:00
include Merge remote-tracking branch 'sstabellini/xen_fixes_20130603' into staging 2013-06-04 14:58:58 -05:00
ldscripts build: create ldscripts/ 2012-12-19 08:29:06 +01:00
libcacard libcacard/cac: change big switch functions to single return point 2013-04-24 11:48:06 +03:00
linux-headers linux-headers: Update to kvm/queue 2013-04-26 23:02:40 +02:00
linux-user linux-user: Fix typo in comment 2013-06-01 14:25:38 +04:00
net net: support for bridged networking on Mac OS X 2013-05-24 16:33:48 +02:00
pc-bios s390/ipl: Fix spurious errors in virtio 2013-05-31 12:50:46 -05:00
pixman@97336fad32 qapi: move include files to include/qobject/ 2012-12-19 08:31:31 +01:00
po po/hu.po: Hungarian translation for the GTK+ interface 2013-06-03 08:39:11 -05:00
qapi qapi: Fix unchecked strdup() by converting to g_strdup() 2013-01-30 11:14:46 +01:00
qga qga: save state directory in ga_install_service() 2013-05-30 11:37:37 -05:00
qobject json-parser: fix handling of large whole number values 2013-05-23 09:44:20 -04:00
qom qom/object: Don't poll cast cache for NULL objects 2013-05-22 07:40:09 -05:00
roms update seabios to release 1.7.2.2 2013-05-28 12:19:02 +02:00
scripts block: add block driver read only whitelist 2013-06-04 12:11:58 +02:00
slirp slirp: cleanup leftovers from misc.h 2013-06-01 14:25:39 +04:00
stubs cpu: Introduce cpu_resume(), for single CPU 2013-05-01 13:04:17 +02:00
sysconfigs/target Eliminate cpus-x86_64.conf file 2012-09-21 15:12:58 +02:00
target-alpha cpu: Replace do_interrupt() by CPUClass::do_interrupt method 2013-03-12 10:35:55 +01:00
target-arm Remove unnecessary break statements 2013-06-01 14:25:38 +04:00
target-cris target-cris: Override do_interrupt for pre-v32 CPU cores 2013-04-16 02:45:11 +02:00
target-i386 target-i386: Fix aflag logic for CODE64 and the 0x67 prefix 2013-05-31 12:51:07 -05:00
target-lm32 hw: move headers to include/ 2013-04-08 18:13:10 +02:00
target-m68k cpu: Replace do_interrupt() by CPUClass::do_interrupt method 2013-03-12 10:35:55 +01:00
target-microblaze microblaze: Add internal base vectors reg 2013-04-26 11:28:50 +02:00
target-mips linux-user: Save the correct resume address for MIPS signal handling 2013-05-20 18:16:17 +02:00
target-moxie target-moxie: replace target_phys_addr_t with hwaddr 2013-05-18 16:35:12 +04:00
target-openrisc cpu: Replace do_interrupt() by CPUClass::do_interrupt method 2013-03-12 10:35:55 +01:00
target-ppc remove some double-includes 2013-05-18 16:35:12 +04:00
target-s390x Remove unnecessary break statements 2013-06-01 14:25:38 +04:00
target-sh4 hw: move headers to include/ 2013-04-08 18:13:10 +02:00
target-sparc Remove Sun4c, Sun4d and a few CPUs 2013-05-26 11:37:58 +00:00
target-unicore32 Remove unnecessary break statements 2013-06-01 14:25:38 +04:00
target-xtensa cpu: Replace do_interrupt() by CPUClass::do_interrupt method 2013-03-12 10:35:55 +01:00
tcg tcg/optimize: fix setcond2 optimization 2013-05-09 16:14:58 +02:00
tests qemu-iotests: make create_image() common 2013-06-04 12:11:58 +02:00
trace trace: Add ftrace tracing backend 2013-05-03 13:58:09 +02:00
ui gtk: don't use g_object_unref on GdkCursor 2013-06-03 16:14:05 -05:00
util osdep: add qemu_get_local_state_pathname() 2013-05-30 11:37:37 -05:00
.exrc qemu: add .exrc 2012-09-07 09:02:44 +03:00
.gitignore S390: ccw firmware: Add Makefile 2013-04-26 20:18:24 +02:00
.gitmodules dtc: add submodule 2013-04-18 13:50:53 +02:00
.mailmap Add a .mailmap to map pre-git-conversion authors to friendly names 2011-12-12 17:06:21 -06:00
CODING_STYLE Replace Qemu by QEMU in internal documentation 2012-04-07 13:58:25 +00:00
COPYING
…
COPYING.LIB
…
Changelog fix some common typos 2012-05-14 07:27:24 +02:00
HACKING osdep, kvm: rename low-level RAM allocation functions 2013-05-14 08:53:31 -05:00
LICENSE LICENSE: There is no libqemu.a anymore 2011-12-09 11:25:22 +00:00
MAINTAINERS target-i386: Introduce ICC bus/device/bridge 2013-05-01 13:06:06 +02:00
Makefile Makefile: create ".../var/run" when installing the POSIX guest agent 2013-05-30 11:37:37 -05:00
Makefile.objs target-i386: Add "feature-words" property to X86CPU 2013-05-06 19:16:05 +02:00
Makefile.target cpu: Make kvm-stub.o available outside softmmu 2013-05-01 13:04:17 +02:00
README Update README 2011-12-11 17:50:43 -06:00
VERSION Open up 1.6 development 2013-05-20 10:55:18 -05:00
aio-posix.c aio: support G_IO_HUP and G_IO_ERR 2013-02-21 16:17:31 -06:00
aio-win32.c aio: Fix return value of aio_poll() 2013-01-17 10:51:42 +01:00
arch_init.c memory: make memory_global_sync_dirty_bitmap take an AddressSpace 2013-05-24 18:42:51 +02:00
async.c aio: add a ThreadPool instance to AioContext 2013-03-15 16:07:50 +01:00
balloon.c softmmu: move include files to include/sysemu/ 2012-12-19 08:32:45 +01:00
block-migration.c migration: run setup callbacks out of big lock 2013-03-11 13:32:01 +01:00
block.c block: move qmp and info dump related code to block/qapi.c 2013-06-04 13:56:30 +02:00
blockdev-nbd.c hw: move headers to include/ 2013-04-08 18:13:10 +02:00
blockdev.c blockdev: reset werror/rerror on drive_del 2013-06-05 16:39:59 +02:00
blockjob.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
bt-host.c sysemu: avoid proliferation of include/ subdirectories 2013-04-15 18:19:25 +02:00
bt-vhci.c sysemu: avoid proliferation of include/ subdirectories 2013-04-15 18:19:25 +02:00
cmd.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
cmd.h
…
configure block: add block driver read only whitelist 2013-06-04 12:11:58 +02:00
coroutine-gthread.c block: move include files to include/block/ 2012-12-19 08:31:31 +01:00
coroutine-sigaltstack.c Merge remote-tracking branch 'kwolf/for-anthony' into staging 2013-02-26 07:44:39 -06:00
coroutine-ucontext.c Fix warnings suppressors to honor --disable-werror 2013-04-17 10:28:04 -05:00
coroutine-win32.c block: move include files to include/block/ 2012-12-19 08:31:31 +01:00
cpu-exec.c Merge branch 'mingw' of git://qemu.weilnetz.de/qemu 2013-04-13 14:31:54 +02:00
cpus.c cpus: Fix pausing TCG CPUs while in vCPU thread 2013-05-02 12:15:38 +02:00
cputlb.c memory: add address_space_translate 2013-05-29 16:26:50 +02:00
device-hotplug.c hw: move device-hotplug.o to toplevel, compile it once 2013-03-01 13:57:13 +01:00
device_tree.c softmmu: move include files to include/sysemu/ 2012-12-19 08:32:45 +01:00
disas.c disas: Disassemble all ppc insns for the guest 2013-04-26 23:02:42 +02:00
dma-helpers.c memory: add address_space_access_valid 2013-05-29 16:27:16 +02:00
dump-stub.c cpu: Move cpu_write_elfXX_note() functions to CPUState 2013-05-01 13:04:19 +02:00
dump.c cpu: Move cpu_write_elfXX_note() functions to CPUState 2013-05-01 13:04:19 +02:00
exec.c memory: add return value to address_space_rw/read/write 2013-05-29 16:27:34 +02:00
gdbstub.c gdbstub: do not restart crashed guest 2013-05-30 11:45:03 -05:00
hmp-commands.hx blockdev: reset werror/rerror on drive_del 2013-06-05 16:39:59 +02:00
hmp.c Merge remote-tracking branch 'bonzini/hw-dirs' into staging 2013-04-15 17:06:04 -05:00
hmp.h Revert "New QMP command query-cpu-max and HMP command cpu_max" 2013-04-12 09:41:54 -04:00
iohandler.c iohandler: switch to GPollFD 2013-02-21 16:17:31 -06:00
ioport.c exec: move include files to include/exec/ 2012-12-19 08:31:31 +01:00
kvm-all.c fix double free the memslot in kvm_set_phys_mem 2013-06-03 15:21:27 -05:00
kvm-stub.c kvm: add kvm_readonly_mem_enabled 2013-05-29 08:15:35 -05:00
main-loop.c main-loop: partial revert of 5e3bc73 2013-05-16 14:18:47 -05:00
memory.c memory: propagate errors on I/O dispatch 2013-05-29 16:27:32 +02:00
memory_mapping-stub.c softmmu: move include files to include/sysemu/ 2012-12-19 08:32:45 +01:00
memory_mapping.c exec: change RAM list to a TAILQ 2012-12-20 23:08:47 +01:00
migration-exec.c migration: eliminate s->migration_file 2013-03-11 13:32:03 +01:00
migration-fd.c migration: eliminate s->migration_file 2013-03-11 13:32:03 +01:00
migration-tcp.c migration: eliminate s->migration_file 2013-03-11 13:32:03 +01:00
migration-unix.c migration: eliminate s->migration_file 2013-03-11 13:32:03 +01:00
migration.c migration: Remove duplicate bandwidth_limit set 2013-06-01 14:25:38 +04:00
monitor.c do not check pointers after dereferencing them 2013-06-01 14:25:39 +04:00
nbd.c nbd: support large NBD requests 2013-05-03 13:05:49 +02:00
os-posix.c Add option to mlock qemu and guest memory 2013-04-22 08:52:23 -05:00
os-win32.c qemu-timer: move timeBeginPeriod/timeEndPeriod to os-win32 2013-04-12 18:27:16 +02:00
page_cache.c remove some double-includes 2013-05-18 16:35:12 +04:00
qapi-schema-test.json qapi: add native list coverage for QMP output visitor tests 2013-05-23 09:44:21 -04:00
qapi-schema.json blockdev: Rename BlockdevAction -> TransactionAction 2013-05-24 16:17:55 +02:00
qdev-monitor.c qdev: Let qdev_prop_parse() pass through Error 2013-05-06 19:40:44 +02:00
qdict-test-data.txt
…
qemu-bridge-helper.c qemu-bridge-helper: force usage of a very high MAC address for the bridge 2013-03-28 12:58:52 -05:00
qemu-char.c chardev: fix "info chardev" output 2013-05-27 12:47:28 +02:00
qemu-coroutine-io.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
qemu-coroutine-lock.c coroutine: stop using AioContext in CoQueue 2013-05-24 16:17:56 +02:00
qemu-coroutine-sleep.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
qemu-coroutine.c coroutine: stop using AioContext in CoQueue 2013-05-24 16:17:56 +02:00
qemu-doc.texi Remove Sun4c, Sun4d and a few CPUs 2013-05-26 11:37:58 +00:00
qemu-img-cmds.hx qemu-img: Add compare subcommand 2013-02-22 21:21:10 +01:00
qemu-img.c block: dump snapshot and image info to specified output 2013-06-04 13:56:30 +02:00
qemu-img.texi qemu-img: Add compare subcommand 2013-02-22 21:21:10 +01:00
qemu-io.c qemu-io: Fix 'map' output 2013-05-24 16:17:55 +02:00
qemu-log.c qemu-log: default to stderr for logging output 2013-02-26 13:31:47 -06:00
qemu-nbd.c Add -f FMT / --format FMT arg to qemu-nbd 2013-04-15 14:29:20 -05:00
qemu-nbd.texi Add -f FMT / --format FMT arg to qemu-nbd 2013-04-15 14:29:20 -05:00
qemu-options-wrapper.h vl.c: In qemu -h output, only print options for the arch we are running as 2011-12-19 10:27:33 -06:00
qemu-options.h vl.c: Move option generation logic into a wrapper file 2011-12-19 10:27:33 -06:00
qemu-options.hx monitor: allow to disable the default monitor 2013-05-23 09:58:45 -04:00
qemu-seccomp.c seccomp: add the asynchronous I/O syscalls to the whitelist 2013-05-30 11:46:07 -05:00
qemu-tech.texi qemu-tech.texi: update implemented xtensa features list 2012-11-29 13:00:52 -06:00
qemu-timer.c qemu-timer: move timeBeginPeriod/timeEndPeriod to os-win32 2013-04-12 18:27:16 +02:00
qemu.sasl
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qmp-commands.hx Merge remote-tracking branch 'afaerber/qom-cpu' into staging 2013-05-02 10:57:01 -05:00
qmp.c QMP: Add cpu-add command 2013-05-01 13:06:07 +02:00
qtest.c qtest: Handle addresses and values for {in, out}[bwl] as unsigned 2013-04-22 09:11:50 -05:00
readline.c readline: Handle xterm escape sequences for Home/End keys 2013-05-14 08:53:22 -05:00
rules.mak win32: fix compilation again 2013-05-03 12:04:40 -05:00
savevm.c block: dump snapshot and image info to specified output 2013-06-04 13:56:30 +02:00
spice-qemu-char.c spice-qemu-char: vmc_write: Don't write more bytes then we're asked too 2013-04-16 11:52:09 +02:00
tcg-runtime.c tcg: Implement multiword multiply helpers 2013-02-23 17:25:28 +00:00
tci.c tci: Make tcg temporaries local to tcg_qemu_tb_exec 2013-04-11 19:58:21 +02:00
thread-pool.c threadpool: drop global thread pool 2013-03-15 16:07:51 +01:00
thunk.c exec: move include files to include/exec/ 2012-12-19 08:31:31 +01:00
tpm.c Move TPM passthrough specific command line options to backend structure 2013-04-23 10:40:40 -05:00
trace-events Merge remote-tracking branch 'bonzini/iommu-for-anthony' into staging 2013-05-24 13:47:42 -05:00
translate-all.c memory: add address_space_translate 2013-05-29 16:26:50 +02:00
translate-all.h cputlb: Pass CPUState to cpu_unlink_tb() 2013-02-16 14:51:00 +01:00
user-exec.c Replace all setjmp()/longjmp() with sigsetjmp()/siglongjmp() 2013-02-23 16:11:19 +00:00
version.rc
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vl.c main_loop: do not set nonblocking if xen_enabled() 2013-06-03 15:41:26 +00:00
xbzrle.c Move XBZRLE encoding code to a separate file to allow testing 2013-02-01 08:32:20 +01:00
xen-all.c xen: remove xen_vcpu_init 2013-06-03 15:41:27 +00:00
xen-mapcache.c hw: move headers to include/ 2013-04-08 18:13:10 +02:00
xen-stub.c hw: move headers to include/ 2013-04-08 18:13:10 +02:00

README 

Read the documentation in qemu-doc.html or on http://wiki.qemu.org

- QEMU team