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Kevin Wolf 0df93305f2 qcow1: Handle failure for potentially large allocations 
Some code in the block layer makes potentially huge allocations. Failure
is not completely unexpected there, so avoid aborting qemu and handle
out-of-memory situations gracefully.

This patch addresses the allocations in the qcow1 block driver.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15 15:07:15 +02:00
audio
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backends
rng-random: NULL check not needed before g_free()
2014-06-24 20:01:24 +04:00
block
qcow1: Handle failure for potentially large allocations
2014-08-15 15:07:15 +02:00
bsd-user
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default-configs
pc: implement pc-dimm device abstraction
2014-06-19 16:41:47 +03:00
disas
disas/libvixl: prepend the include path of libvixl header files
2014-07-08 12:45:57 +01:00
docs
docs/multiple-iothreads.txt: add documentation on IOThread programming
2014-08-15 15:07:13 +02:00
dtc @ bc895d6d09
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fpu
fpu: softfloat: drop INLINE macro
2014-06-23 11:00:12 -04:00
fsdev
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gdb-xml
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hw
xen_disk: fix possible null-ptr dereference
2014-08-15 15:07:13 +02:00
include
block: Introduce qemu_try_blockalign()
2014-08-15 15:07:15 +02:00
libcacard
vscclient: Add required headers to fix build on FreeBSD
2014-06-24 20:01:24 +04:00
libdecnumber
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linux-headers
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linux-user
linux-user: use TARGET_SA_ONSTACK in get_sigframe
2014-07-15 17:08:41 +03:00
net
tap-bsd: implement a FreeBSD only version of tap_open
2014-08-01 15:57:48 +00:00
pc-bios
pc-bios/s390-ccw: update binary
2014-07-08 15:08:03 +02:00
pixman @ 97336fad32
…
po
po: update Italian translation
2014-07-29 13:23:33 +01:00
qapi
QMP: Add support for Archipelago
2014-08-15 15:07:14 +02:00
qga
qga: Add missing 'static' attribute
2014-07-18 17:45:37 +04:00
qobject
json-lexer: fix escaped backslash in single-quoted string
2014-06-23 11:01:24 -04:00
qom
qom: object: Ignore refs/unrefs of NULL
2014-07-01 10:20:41 +02:00
roms
pseries: Update SLOF firmware image to qemu-slof-20140630
2014-07-08 12:10:36 +02:00
scripts
checker: ignore fields marked unused
2014-08-04 15:02:37 +05:30
slirp
Increase maximum number of session of the internal TFTP server.
2014-06-24 20:01:24 +04:00
stubs
Merge remote-tracking branch 'remotes/qmp-unstable/queue/qmp' into staging
2014-06-24 13:06:13 +01:00
sysconfigs/target
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target-alpha
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target-arm
target-arm: A64: fix TLB flush instructions
2014-08-04 14:41:56 +01:00
target-cris
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target-i386
target-i386: Allow execute from user mode when SMEP is enabled.
2014-07-15 18:43:14 +02:00
target-lm32
vl: allow other threads to do qemu_system_vmstop_request
2014-06-23 16:36:13 +08:00
target-m68k
…
target-microblaze
…
target-mips
target-mips/translate.c: Free TCG in OPC_DINSV
2014-07-28 23:37:15 +02:00
target-moxie
…
target-openrisc
openrisc: fix comment
2014-06-29 18:59:06 +03:00
target-ppc
spapr: Move RMA memory region registration code
2014-07-15 16:11:59 +02:00
target-s390x
s390x/kvm: synchronize guest floating point registers
2014-07-14 09:15:38 +02:00
target-sh4
…
target-sparc
…
target-unicore32
target-unicore: Remove unused functions
2014-06-24 20:01:24 +04:00
target-xtensa
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tcg
tcg/ppc: Fix support for 64-bit PPC MacOSX hosts
2014-06-29 11:38:50 +01:00
tests
block: iotest - update 084 to test static VDI image creation
2014-08-15 15:07:15 +02:00
trace
…
ui
vnc update fix
2014-07-25 09:43:31 +02:00
util
block: Introduce qemu_try_blockalign()
2014-08-15 15:07:15 +02:00
.exrc
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.gitignore
qapi: ignore generated event files
2014-06-27 09:27:55 -04:00
.gitmodules
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.mailmap
…
.travis.yml
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aio-posix.c
AioContext: speed up aio_notify
2014-07-09 15:50:11 +02:00
aio-win32.c
block: drop aio functions that operate on the main AioContext
2014-07-09 15:50:11 +02:00
arch_init.c
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async.c
AioContext: speed up aio_notify
2014-07-09 15:50:11 +02:00
balloon.c
qapi event: convert BALLOON_CHANGE
2014-06-23 11:12:28 -04:00
block-migration.c
block: Use bdrv_nb_sectors() where sectors, not bytes are wanted
2014-08-15 15:07:13 +02:00
block.c
block: Handle failure for potentially large allocations
2014-08-15 15:07:15 +02:00
blockdev-nbd.c
nbd: Shutdown socket before closing.
2014-06-30 12:50:12 +02:00
blockdev.c
block: add backing-file option to block-stream
2014-07-01 10:47:01 +02:00
blockjob.c
block: prefer aio_poll to qemu_aio_wait
2014-07-09 15:50:11 +02:00
bt-host.c
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bt-vhci.c
…
Changelog
…
CODING_STYLE
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configure
block: Support Archipelago as a QEMU block backend
2014-08-15 15:07:14 +02:00
COPYING
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COPYING.LIB
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coroutine-gthread.c
…
coroutine-sigaltstack.c
…
coroutine-ucontext.c
…
coroutine-win32.c
coroutine-win32.c: Add noinline attribute to work around gcc bug
2014-06-26 14:08:14 +01:00
cpu-exec.c
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cpus.c
qapi event: convert STOP
2014-06-23 11:01:25 -04:00
cputlb.c
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device_tree.c
…
device-hotplug.c
…
disas.c
…
dma-helpers.c
dma-helpers: Fix too long qiov
2014-07-14 12:03:21 +02:00
dump.c
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exec.c
exec: fix migration with devices that use address_space_rw
2014-07-22 10:38:50 +02:00
gdbstub.c
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HACKING
…
hmp-commands.hx
Add the vhost-user netdev backend to the command line
2014-06-19 18:44:18 +03:00
hmp.c
block: add backing-file option to block-stream
2014-07-01 10:47:01 +02:00
hmp.h
hmp: add info memdev
2014-06-19 18:44:21 +03:00
iohandler.c
…
ioport.c
…
iothread.c
AioContext: do not rely on aio_poll(ctx, true) result to end a loop
2014-07-14 12:03:20 +02:00
kvm-all.c
kvm-all: Use 'tmpcpu' instead of 'cpu' in sub-looping to avoid 'cpu' be NULL
2014-07-22 12:38:17 +02:00
kvm-stub.c
Add kvm_eventfds_enabled function
2014-06-19 16:41:54 +03:00
LICENSE
…
main-loop.c
block: drop aio functions that operate on the main AioContext
2014-07-09 15:50:11 +02:00
MAINTAINERS
block: Support Archipelago as a QEMU block backend
2014-08-15 15:07:14 +02:00
Makefile
PPC: e500: Actually install u-boot.e500
2014-07-08 12:10:37 +02:00
Makefile.objs
qapi script: add event support
2014-06-23 11:01:25 -04:00
Makefile.target
configure: Fix -lm test, so that tools can be compiled on hosts that require -lm
2014-07-01 10:36:28 +02:00
memory_mapping.c
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memory.c
memory: MemoryRegion: Add size property
2014-07-01 10:20:41 +02:00
migration-exec.c
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migration-fd.c
…
migration-rdma.c
rdma: bug fixes
2014-06-23 19:09:50 +02:00
migration-tcp.c
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migration-unix.c
…
migration.c
…
module-common.c
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monitor.c
serial: poll the serial console with G_IO_HUP
2014-06-30 15:04:34 +02:00
nbd.c
nbd: Handle NBD_OPT_LIST option.
2014-06-30 12:50:17 +02:00
numa.c
numa: check for busy memory backend
2014-07-06 09:13:53 +03:00
os-posix.c
…
os-win32.c
…
page_cache.c
…
qapi-schema.json
mc146818rtc: add rtc-reset-reinjection QMP command
2014-06-29 18:59:35 +03:00
qdev-monitor.c
qdev-monitor: include QOM properties in -device FOO, help output
2014-08-15 15:07:13 +02:00
qdict-test-data.txt
…
qemu-bridge-helper.c
qemu-bridge-helper: Fix fd leak in main()
2014-06-27 10:39:10 +02:00
qemu-char.c
qemu-char: ignore flow control if a PTY's slave is not connected
2014-07-25 14:36:07 +02:00
qemu-coroutine-io.c
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qemu-coroutine-lock.c
…
qemu-coroutine-sleep.c
…
qemu-coroutine.c
coroutine: make pool size dynamic
2014-08-15 15:07:14 +02:00
qemu-doc.texi
doc: slirp supports ICMP echo if enabled in Linux
2014-07-18 17:45:37 +04:00
qemu-file.c
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qemu-img-cmds.hx
…
qemu-img.c
block: Avoid bdrv_get_geometry() where errors should be detected
2014-08-15 15:07:13 +02:00
qemu-img.texi
Fix nocow typos in manpage
2014-07-07 09:15:29 +02:00
qemu-io-cmds.c
block: prefer aio_poll to qemu_aio_wait
2014-07-09 15:50:11 +02:00
qemu-io.c
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qemu-log.c
…
qemu-nbd.c
nbd: Shutdown socket before closing.
2014-06-30 12:50:12 +02:00
qemu-nbd.texi
…
qemu-options-wrapper.h
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qemu-options.h
…
qemu-options.hx
qemu-options: fix another allows-to for -net l2tpv3
2014-07-26 11:16:44 +04:00
qemu-seccomp.c
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qemu-tech.texi
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qemu-timer.c
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qemu.nsi
…
qemu.sasl
…
qmp-commands.hx
block: add backing-file option to block-stream
2014-07-01 10:47:01 +02:00
qmp.c
qmp: hide "hotplugged" device property from device-list-properties
2014-08-15 15:07:13 +02:00
qtest.c
…
README
…
rules.mak
build-sys: introduce install-prog macro to install&strip binaries and use it
2014-06-24 20:01:24 +04:00
savevm.c
savevm: check vmsd for migratability status
2014-06-25 23:54:57 +02:00
softmmu_template.h
…
spice-qemu-char.c
qemu-char: introduce qemu_chr_alloc
2014-06-23 11:12:28 -04:00
tcg-runtime.c
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tci.c
…
thread-pool.c
thread-pool: avoid deadlock in nested aio_poll() calls
2014-08-15 15:07:14 +02:00
thunk.c
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tpm.c
…
trace-events
trace: add qemu_system_powerdown_request and qemu_system_shutdown_request trace events
2014-07-01 10:56:13 +02:00
translate-all.c
Fix new typos (found by codespell)
2014-06-24 20:01:24 +04:00
translate-all.h
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user-exec.c
…
VERSION
Open 2.2 development tree
2014-08-01 18:30:08 +01:00
version.rc
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vl.c
machine: Replace underscores in machine's property names
2014-07-21 18:58:36 +02:00
vmstate.c
vmstate: Add preallocation for migrating arrays (VMS_ALLOC flag)
2014-06-27 13:48:27 +02:00
xbzrle.c
…
xen-common-stub.c
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xen-common.c
…
xen-hvm-stub.c
xen-hvm: Fix xen_hvm_init() to adjust pc memory layout
2014-06-23 17:50:04 +03:00
xen-hvm.c
xen: fix usage of ENODATA
2014-08-01 15:57:28 +00:00
xen-mapcache.c
xen: build on ARM
2014-07-07 10:37:40 +00:00

README 

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

- QEMU team
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