OpenE2K/qemu-e2k
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Stefan Hajnoczi cae98cb87d block/mirror: limit qiov to IOV_MAX elements 
If mirror has more free buffers than IOV_MAX, preadv(2)/pwritev(2)
EINVAL failures may be encountered.

It is possible to trigger this by setting granularity to a low value
like 8192.

This patch stops appending chunks once IOV_MAX is reached.

The spurious EINVAL failure can be reproduced with a qcow2 image file
and the following QMP invocation:

  qmp.command('drive-mirror', device='virtio0', target='/tmp/r7.s1',
              granularity=8192, sync='full', mode='absolute-paths',
              format='raw')

While the guest is running dd if=/dev/zero of=/var/tmp/foo oflag=direct
bs=4k.

Cc: Jeff Cody <jcody@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1435761950-26714-1-git-send-email-stefanha@redhat.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
2015-08-06 04:41:09 -04:00
audio
ossaudio: fix memory leak
2015-07-08 13:11:01 +02:00
backends
hostmem: Fix qemu_opt_get_bool() crash in host_memory_backend_init()
2015-07-22 15:09:25 -03:00
block
block/mirror: limit qiov to IOV_MAX elements
2015-08-06 04:41:09 -04:00
bsd-user
bsd-user: Fix operand to cpu_x86_exec
2015-07-30 12:38:49 +01:00
crypto
crypto: fix built-in AES decrypt function
2015-07-27 12:22:01 +02:00
default-configs
acpi: split out ICH ACPI support
2015-07-07 13:11:57 +03:00
disas
disas/arm-a64: Add missing compiler attribute GCC_FMT_ATTR
2015-07-21 11:18:45 +01:00
docs
AioContext: optimize clearing the EventNotifier
2015-07-22 12:41:40 +01:00
dtc @ 65cc4d2748
dtc: Update dtc / libfdt submodule to version 1.4.0
2015-06-03 23:56:49 +02:00
fpu
target-s390x: define default NaN values
2015-06-05 01:37:58 +02:00
fsdev
virtfs-proxy-helper: fail gracefully if socket path is too long
2015-06-16 20:32:29 +05:30
gdb-xml
gdb-xml: Include XML for s390 vector registers
2015-05-27 17:52:03 +02:00
hw
virtio: fix 1.0 virtqueue migration
2015-08-05 16:56:34 +03:00
include
virtio: fix 1.0 virtqueue migration
2015-08-05 16:56:34 +03:00
libcacard
libcacard: pkgconfig: tidy dependent libs
2015-06-23 19:57:28 +03:00
libdecnumber
remove libdecnumber/dpd/decimal128Local.h
2015-06-23 19:57:27 +03:00
linux-headers
linux-headers: Update to 4.2-rc1
2015-07-06 17:59:01 +02:00
linux-user
linux-user: Fix MIPS N64 trap and break instruction bug
2015-07-15 14:07:25 +01:00
migration
migration: Fix global state with Xen.
2015-08-03 16:13:23 +00:00
net
net: Flush queued packets when guest resumes
2015-07-20 18:11:24 +01:00
pc-bios
pseries: Update SLOF firmware image to qemu-slof-20150429
2015-07-07 17:44:49 +02:00
pixman @ 87eea99e44
pixman: update internal copy to pixman-0.32.6
2014-09-15 08:14:19 +02:00
po
po: fix conflict with %.mo rule in rules.mak
2014-09-26 13:35:08 +02:00
qapi
migration: create migration event
2015-07-07 14:54:55 +02:00
qga
qga: fixed versions for guest bus types in qapi-schema
2015-07-21 14:36:06 -05:00
qobject
Include qapi/qmp/qerror.h exactly where needed
2015-06-22 18:20:41 +02:00
qom
cpu: Convert cpu_index into a bitmap
2015-07-09 15:20:40 +02:00
roms
pseries: Update SLOF firmware image to qemu-slof-20150429
2015-07-07 17:44:49 +02:00
scripts
virtio-input: move sys/ioctl.h include
2015-07-16 17:34:41 +02:00
slirp
qerror: Move #include out of qerror.h
2015-06-22 18:20:40 +02:00
stubs
main-loop: introduce qemu_mutex_iothread_locked
2015-07-01 15:45:50 +02:00
target-alpha
cpu-exec: Purge all uses of ENV_GET_CPU()
2015-07-09 15:20:40 +02:00
target-arm
target-arm: kvm: Differentiate registers based on write-back levels
2015-07-21 11:18:45 +01:00
target-cris
disas: cris: QOMify target specific disas setup
2015-07-09 15:20:41 +02:00
target-i386
target-i386/FPU: a misprint in helper_fistll_ST0
2015-07-24 13:57:45 +02:00
target-lm32
cpu-exec: Purge all uses of ENV_GET_CPU()
2015-07-09 15:20:40 +02:00
target-m68k
cpu-exec: Purge all uses of ENV_GET_CPU()
2015-07-09 15:20:40 +02:00
target-microblaze
disas: microblaze: QOMify target specific disas setup
2015-07-09 15:20:41 +02:00
target-mips
target-mips: Copy restrictions from ext/ins to dext/dins
2015-08-04 11:53:15 +01:00
target-moxie
cpu-exec: Purge all uses of ENV_GET_CPU()
2015-07-09 15:20:40 +02:00
target-openrisc
cpu-exec: Purge all uses of ENV_GET_CPU()
2015-07-09 15:20:40 +02:00
target-ppc
cpu-exec: Purge all uses of ENV_GET_CPU()
2015-07-09 15:20:40 +02:00
target-s390x
cpu-exec: Purge all uses of ENV_GET_CPU()
2015-07-09 15:20:40 +02:00
target-sh4
cpu-exec: Purge all uses of ENV_GET_CPU()
2015-07-09 15:20:40 +02:00
target-sparc
cpu-exec: Purge all uses of ENV_GET_CPU()
2015-07-09 15:20:40 +02:00
target-tricore
cpu-exec: Purge all uses of ENV_GET_CPU()
2015-07-09 15:20:40 +02:00
target-unicore32
cpu-exec: Purge all uses of ENV_GET_CPU()
2015-07-09 15:20:40 +02:00
target-xtensa
cpu-exec: Purge all uses of ENV_GET_CPU()
2015-07-09 15:20:40 +02:00
tcg
tcg/mips: fix add2
2015-08-01 09:39:50 +02:00
tests
* crypto fixes
2015-07-28 14:19:16 +01:00
trace
Remove superfluous '\n' around error_report()
2015-03-10 08:15:33 +03:00
ui
vnc: fix memory leak
2015-07-24 13:57:44 +02:00
util
rcu: actually register threads that have RCU read-side critical sections
2015-07-24 13:57:45 +02:00
.exrc
…
.gitignore
gitignore: Ignore shader generated files
2015-07-27 22:44:47 +03:00
.gitmodules
PPC: Add u-boot firmware for e500
2014-06-16 13:24:35 +02:00
.mailmap
…
.travis.yml
.travis.yml: Add "--enable-modules"
2015-01-26 12:27:05 +01:00
accel.c
accel: Create accel object when initializing machine
2014-10-09 15:36:14 +02:00
aio-posix.c
AioContext: optimize clearing the EventNotifier
2015-07-22 12:41:40 +01:00
aio-win32.c
AioContext: optimize clearing the EventNotifier
2015-07-22 12:41:40 +01:00
arch_init.c
migration: reduce include files
2015-06-12 06:42:34 +02:00
async.c
AioContext: force event loop iteration using BH
2015-07-29 10:02:06 +01:00
balloon.c
Include monitor/monitor.h exactly where needed
2015-06-22 18:20:41 +02:00
block.c
block: Fix backing file child when modifying graph
2015-07-14 17:15:23 +02:00
blockdev-nbd.c
Include monitor/monitor.h exactly where needed
2015-06-22 18:20:41 +02:00
blockdev.c
mirror: correct buf_size
2015-07-14 21:50:13 -04:00
blockjob.c
blockjob: add block_job_release function
2015-07-07 14:27:14 +01:00
bootdevice.c
misc: fix typos in copyright declaration
2015-03-26 14:21:43 +01:00
bt-host.c
…
bt-vhci.c
…
Changelog
…
CODING_STYLE
CODING_STYLE: Section about conditional statement
2014-08-15 18:54:06 +04:00
configure
configure: Drop vnc-ws feature from help text
2015-08-03 15:32:17 +01:00
COPYING
…
COPYING.LIB
…
coroutine-gthread.c
glib-compat.h: add new thread API emulation on top of pre-2.31 API
2014-06-10 07:44:01 +02:00
coroutine-sigaltstack.c
coroutine-sigaltstack: Change jmp_buf to sigjmp_buf
2014-11-11 11:07:55 +03:00
coroutine-ucontext.c
coroutine-ucontext: use __thread
2015-01-13 13:43:28 +00:00
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
cpu-exec: Purge all uses of ENV_GET_CPU()
2015-07-09 15:20:40 +02:00
cpus.c
rcu: actually register threads that have RCU read-side critical sections
2015-07-24 13:57:45 +02:00
cputlb.c
memory: replace cpu_physical_memory_reset_dirty() with test-and-clear
2015-06-05 17:10:00 +02:00
device_tree.c
device_tree: Fix a typo
2015-07-27 22:44:47 +03:00
device-hotplug.c
pci-hotplug-old: Has been dead for five major releases, bury
2015-03-01 12:37:54 +01:00
disas.c
disas: cris: QOMify target specific disas setup
2015-07-09 15:20:41 +02:00
dma-helpers.c
range: remove useless inclusions
2015-04-30 16:05:48 +03:00
dump.c
Include qapi/qmp/qerror.h exactly where needed
2015-06-22 18:20:41 +02:00
exec.c
exec.c: Use atomic_rcu_read() to access dispatch in memory_region_section_get_iotlb()
2015-07-23 07:37:38 +02:00
gdbstub.c
gdbstub: Set current CPU on interruptions
2015-07-27 22:46:16 +03:00
HACKING
…
hmp-commands.hx
qmp/hmp: add rocker device support
2015-06-12 13:42:17 +01:00
hmp.c
qmp: Add optional bool "unmap" to drive-mirror
2015-07-02 10:06:23 +01:00
hmp.h
qmp/hmp: add rocker device support
2015-06-12 13:42:17 +01:00
iohandler.c
iohandler: Change return type of qemu_set_fd_handler to "void"
2015-06-12 13:26:21 +01:00
ioport.c
- miscellaneous cleanups for TCG (Emilio) and NBD (Bogdan)
2015-04-30 12:04:11 +01:00
iothread.c
rcu: actually register threads that have RCU read-side critical sections
2015-07-24 13:57:45 +02:00
kvm-all.c
VFIO updates for 2.4-rc0
2015-07-07 09:22:40 +01:00
kvm-stub.c
kvm: some fixes to kvm_resamplefds_allowed
2015-07-06 12:15:14 -06:00
LICENSE
vfio: move hw/misc/vfio.c to hw/vfio/pci.c Move vfio.h into include/hw/vfio
2014-12-19 15:24:06 -07:00
main-loop.c
main-loop: fix qemu_notify_event for aio_notify optimization
2015-07-27 17:12:19 +01:00
MAINTAINERS
MAINTAINERS: update email address
2015-07-14 17:15:23 +02:00
Makefile
make: Clean build messages
2015-07-27 22:44:47 +03:00
Makefile.objs
crypto: introduce new module for computing hash digests
2015-07-07 12:04:07 +02:00
Makefile.target
migration: move savevm.c inside migration/
2015-06-12 06:42:30 +02:00
memory_mapping.c
memory_mapping: Rework cpu related includes
2015-06-26 16:00:50 +02:00
memory.c
memory: do not add a reference to the owner of aliased regions
2015-07-27 23:05:49 +02:00
module-common.c
…
monitor.c
Include qapi/qmp/qerror.h exactly where needed
2015-06-22 18:20:41 +02:00
nbd.c
qemu-nbd: only send a limited number of errno codes on the wire
2015-05-08 14:45:11 +02:00
numa.c
numa: Fix memory leak in numa_set_mem_node_id()
2015-07-15 16:57:50 -03:00
os-posix.c
rcu: do not create thread in pthread_atfork callback
2015-04-01 10:06:38 +02:00
os-win32.c
pidfile: stop making pidfile error a special case
2014-11-02 10:04:34 +03:00
page_cache.c
xbzrle: rebuild the cache_is_cached function
2015-01-15 17:49:43 +05:30
qapi-schema.json
qapi: add missing @
2015-07-27 22:44:47 +03:00
qdev-monitor.c
Include qapi/qmp/qerror.h exactly where needed
2015-06-22 18:20:41 +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: Fix missed data on unix socket
2015-07-23 07:37:38 +02:00
qemu-coroutine-io.c
coroutine-io: Return -errno in case of error
2015-03-18 12:07:21 +01:00
qemu-coroutine-lock.c
coroutine: remove unnecessary parentheses in qemu_co_queue_empty
2015-04-30 16:05:49 +03:00
qemu-coroutine-sleep.c
coroutine: Drop co_sleep_ns
2014-08-29 10:46:58 +01:00
qemu-coroutine.c
coroutine: Clean up qemu_coroutine_enter()
2015-03-09 11:11:59 +01:00
qemu-doc.texi
qemu-doc: fix typos
2015-07-24 13:57:45 +02:00
qemu-img-cmds.hx
qemu-img: Add progress output for amend
2014-11-03 11:41:48 +00:00
qemu-img.c
Include qapi/qmp/qerror.h exactly where needed
2015-06-22 18:20:41 +02:00
qemu-img.texi
qemu-img: Add progress output for amend
2014-11-03 11:41:48 +00:00
qemu-io-cmds.c
qerror: Move #include out of qerror.h
2015-06-22 18:20:40 +02:00
qemu-io.c
qerror: Move #include out of qerror.h
2015-06-22 18:20:40 +02:00
qemu-log.c
qemu-log: Correct help text of 'log cpu_reset'
2015-02-10 09:27:20 +03:00
qemu-nbd.c
qerror: Move #include out of qerror.h
2015-06-22 18:20:40 +02:00
qemu-nbd.texi
…
qemu-options-wrapper.h
…
qemu-options.h
…
qemu-options.hx
qemu-doc: fix typos
2015-07-24 13:57:45 +02:00
qemu-seccomp.c
seccomp: add mlockall to whitelist
2015-01-23 14:07:08 +01:00
qemu-tech.texi
qemu-doc: fix typos
2015-07-24 13:57:45 +02:00
qemu-timer.c
qemu-timer: initialize "timers_done_ev" to set
2015-07-22 12:41:32 +01:00
qemu.nsi
…
qemu.sasl
…
qjson.c
QJSON: Use OBJECT_CHECK
2015-05-11 08:59:07 -04:00
qmp-commands.hx
migration: Write documetation for events capabilites
2015-07-15 09:07:54 +02:00
qmp.c
Include monitor/monitor.h exactly where needed
2015-06-22 18:20:41 +02:00
qtest.c
qtest: pre-buffer hex nibs
2015-05-22 15:58:22 -04:00
README
…
rules.mak
rules.mak: Force CFLAGS for all objects in DSO
2015-05-08 14:45:11 +02:00
softmmu_template.h
softmmu: Add probe_write()
2015-06-11 10:13:28 +01:00
spice-qemu-char.c
spice: fix spice_chr_add_watch() pre-condition
2015-05-29 09:56:01 +02:00
tcg-runtime.c
tcg: Push tcg-runtime routines into exec/helper-*
2014-05-28 09:33:54 -07:00
tci.c
tcg: Mask TCGMemOp appropriately for indexing
2015-06-09 06:35:29 -07:00
thread-pool.c
thread-pool: clean up thread_pool_completion_bh()
2015-04-28 15:36:09 +02:00
thunk.c
linux-user: Allocate thunk size dynamically
2015-06-15 11:36:58 +03:00
tpm.c
Include monitor/monitor.h exactly where needed
2015-06-22 18:20:41 +02:00
trace-events
block/mirror: limit qiov to IOV_MAX elements
2015-08-06 04:41:09 -04:00
translate-all.c
translate-all: Change tb_flush() env argument to cpu
2015-07-09 15:20:40 +02:00
translate-all.h
translate-all: remove unnecessary argument to tb_invalidate_phys_range
2015-06-05 17:09:59 +02:00
user-exec.c
exec: move functions to translate-all.h
2015-06-05 17:09:59 +02:00
VERSION
Update version for v2.4.0-rc4 release
2015-08-05 17:02:58 +01:00
version.rc
…
vl.c
vl: Fix compiler warning for builds without VNC
2015-07-24 13:57:45 +02:00
xen-common-stub.c
accel: Move Xen registration code to xen-common.c
2014-10-04 08:59:15 +02:00
xen-common.c
migration: Fix regression for xenfv and pc,accel=xen machine.
2015-08-03 16:13:40 +00:00
xen-hvm-stub.c
xen: Remove xen_cmos_set_s3_resume()
2015-03-10 08:15:33 +03:00
xen-hvm.c
xen-220615, more SOB lines
2015-06-23 17:46:20 +01:00
xen-mapcache.c
xen: add a lock for the mapcache
2015-01-20 14:24:17 +00:00

README 

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

- QEMU team
Description
QEMU With E2K User Support
Readme 459 MiB
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