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[Qemu-devel] [Bug 1728635] [NEW] qemu-io crashes with SIGSEGV when did -
|
From: |
R.Nageswara Sastry |
|
Subject: |
[Qemu-devel] [Bug 1728635] [NEW] qemu-io crashes with SIGSEGV when did -c aio_write 9233408 28160 on a image_fuzzer image |
|
Date: |
Mon, 30 Oct 2017 15:28:55 -0000 |
Public bug reported:
git is at HEAD a93ece47fd9edbd4558db24300056c9a57d3bcd4
This is on ppc64le architecture.
Re-production steps:
1. Copy the attached file named test.img to a directory
2. And customize the following command to point to the above directory and run
the same.
# cp test.img copy.img
# qemu/qemu-io <path to>/copy.img -c "aio_write 9233408 28160"
from gdb:
Program terminated with signal 11, Segmentation fault.
#0 0x00003fffa0077644 in __memcpy_power7 () from /lib64/libc.so.6
Missing separate debuginfos, use: debuginfo-install
cyrus-sasl-lib-2.1.26-21.el7.ppc64le glib2-2.50.3-3.el7.ppc64le
glibc-2.17-196.el7.ppc64le gmp-6.0.0-15.el7.ppc64le gnutls-3.3.26-9.el7.ppc64le
keyutils-libs-1.5.8-3.el7.ppc64le krb5-libs-1.15.1-8.el7.ppc64le
libaio-0.3.109-13.el7.ppc64le libcom_err-1.42.9-10.el7.ppc64le
libcurl-7.29.0-42.el7.ppc64le libffi-3.0.13-18.el7.ppc64le
libgcc-4.8.5-16.el7_4.1.ppc64le libidn-1.28-4.el7.ppc64le
libselinux-2.5-11.el7.ppc64le libssh2-1.4.3-10.el7_2.1.ppc64le
libstdc++-4.8.5-16.el7_4.1.ppc64le libtasn1-4.10-1.el7.ppc64le
nettle-2.7.1-8.el7.ppc64le nspr-4.13.1-1.0.el7_3.ppc64le
nss-3.28.4-15.el7_4.ppc64le nss-softokn-freebl-3.28.3-8.el7_4.ppc64le
nss-util-3.28.4-3.el7.ppc64le openldap-2.4.44-5.el7.ppc64le
openssl-libs-1.0.2k-8.el7.ppc64le p11-kit-0.23.5-3.el7.ppc64le
pcre-8.32-17.el7.ppc64le zlib-1.2.7-17.el7.ppc64le
(gdb) bt
#0 0x00003fffa0077644 in __memcpy_power7 () from /lib64/libc.so.6
#1 0x0000000010056738 in qcow2_refcount_area (bs=0x25f56f60,
start_offset=137438953472, additional_clusters=0, exact_size=false,
new_refblock_index=0,
new_refblock_offset=524288) at block/qcow2-refcount.c:573
#2 0x0000000010056374 in alloc_refcount_block (bs=0x25f56f60, cluster_index=0,
refcount_block=0x3fff9dadf838) at block/qcow2-refcount.c:479
#3 0x0000000010057520 in update_refcount (bs=0x25f56f60, offset=0,
length=524288, addend=1, decrease=false, type=QCOW2_DISCARD_NEVER)
at block/qcow2-refcount.c:834
#4 0x0000000010057c24 in qcow2_alloc_clusters (bs=0x25f56f60, size=524288) at
block/qcow2-refcount.c:996
#5 0x0000000010063684 in do_alloc_cluster_offset (bs=0x25f56f60,
guest_offset=9233408, host_offset=0x3fff9dadf9e0, nb_clusters=0x3fff9dadf9d8)
at block/qcow2-cluster.c:1213
#6 0x0000000010063afc in handle_alloc (bs=0x25f56f60, guest_offset=9233408,
host_offset=0x3fff9dadfab0, bytes=0x3fff9dadfab8, m=0x3fff9dadfb60)
at block/qcow2-cluster.c:1324
#7 0x0000000010064178 in qcow2_alloc_cluster_offset (bs=0x25f56f60,
offset=9233408, bytes=0x3fff9dadfb4c, host_offset=0x3fff9dadfb58,
m=0x3fff9dadfb60)
at block/qcow2-cluster.c:1511
#8 0x000000001004d3f4 in qcow2_co_pwritev (bs=0x25f56f60, offset=9233408,
bytes=28160, qiov=0x25f6fa08, flags=0) at block/qcow2.c:1919
#9 0x00000000100a9648 in bdrv_driver_pwritev (bs=0x25f56f60, offset=9233408,
bytes=28160, qiov=0x25f6fa08, flags=16) at block/io.c:898
#10 0x00000000100ab630 in bdrv_aligned_pwritev (child=0x25f627f0,
req=0x3fff9dadfdd8, offset=9233408, bytes=28160, align=1, qiov=0x25f6fa08,
flags=16)
at block/io.c:1440
#11 0x00000000100ac4ac in bdrv_co_pwritev (child=0x25f627f0, offset=9233408,
bytes=28160, qiov=0x25f6fa08, flags=BDRV_REQ_FUA) at block/io.c:1691
#12 0x000000001008da0c in blk_co_pwritev (blk=0x25f49410, offset=9233408,
bytes=28160, qiov=0x25f6fa08, flags=BDRV_REQ_FUA) at block/block-backend.c:1085
#13 0x000000001008e718 in blk_aio_write_entry (opaque=0x25f6fa70) at
block/block-backend.c:1276
#14 0x00000000101aa444 in coroutine_trampoline (i0=636902032, i1=0) at
util/coroutine-ucontext.c:79
#15 0x00003fffa0022b9c in makecontext () from /lib64/libc.so.6
#16 0x0000000000000000 in ?? ()
(gdb) bt full
#0 0x00003fffa0077644 in __memcpy_power7 () from /lib64/libc.so.6
No symbol table info available.
#1 0x0000000010056738 in qcow2_refcount_area (bs=0x25f56f60,
start_offset=137438953472, additional_clusters=0, exact_size=false,
new_refblock_index=0,
new_refblock_offset=524288) at block/qcow2-refcount.c:573
s = 0x25f63210
total_refblock_count_u64 = 2
additional_refblock_count = 0
total_refblock_count = 2
table_size = 65536
area_reftable_index = 1
table_clusters = 1
i = 0
table_offset = 268870620
block_offset = 70367094634128
end_offset = 636891296
ret = 636786432
new_table = 0x3fff9d940010
__PRETTY_FUNCTION__ = "qcow2_refcount_area"
data = {d64 = 636841824, d32 = 1}
old_table_offset = 70367094634552
old_table_size = 636786432
#2 0x0000000010056374 in alloc_refcount_block (bs=0x25f56f60, cluster_index=0,
refcount_block=0x3fff9dadf838) at block/qcow2-refcount.c:479
s = 0x25f63210
refcount_table_index = 0
ret = 0
new_block = 524288
blocks_used = 1
meta_offset = 137438953472
#3 0x0000000010057520 in update_refcount (bs=0x25f56f60, offset=0,
length=524288, addend=1, decrease=false, type=QCOW2_DISCARD_NEVER)
at block/qcow2-refcount.c:834
block_index = 268794524
refcount = 4563798300
cluster_index = 0
table_index = 0
s = 0x25f63210
start = 0
last = 0
cluster_offset = 0
refcount_block = 0x0
old_table_index = -1
ret = 0
#4 0x0000000010057c24 in qcow2_alloc_clusters (bs=0x25f56f60, size=524288) at
block/qcow2-refcount.c:996
offset = 0
ret = 0
#5 0x0000000010063684 in do_alloc_cluster_offset (bs=0x25f56f60,
guest_offset=9233408, host_offset=0x3fff9dadf9e0, nb_clusters=0x3fff9dadf9d8)
at block/qcow2-cluster.c:1213
cluster_offset = 0
s = 0x25f63210
#6 0x0000000010063afc in handle_alloc (bs=0x25f56f60, guest_offset=9233408,
host_offset=0x3fff9dadfab0, bytes=0x3fff9dadfab8, m=0x3fff9dadfb60)
at block/qcow2-cluster.c:1324
---Type <return> to continue, or q <return> to quit---
s = 0x25f63210
l2_index = 17
l2_table = 0x0
entry = 0
nb_clusters = 1
ret = 0
keep_old_clusters = false
alloc_cluster_offset = 0
__PRETTY_FUNCTION__ = "handle_alloc"
requested_bytes = 73651285856
avail_bytes = -1649542304
nb_bytes = 16383
old_m = 0x3fff00000000
#7 0x0000000010064178 in qcow2_alloc_cluster_offset (bs=0x25f56f60,
offset=9233408, bytes=0x3fff9dadfb4c, host_offset=0x3fff9dadfb58,
m=0x3fff9dadfb60)
at block/qcow2-cluster.c:1511
s = 0x25f63210
start = 9233408
remaining = 28160
cluster_offset = 0
cur_bytes = 28160
ret = 0
__PRETTY_FUNCTION__ = "qcow2_alloc_cluster_offset"
#8 0x000000001004d3f4 in qcow2_co_pwritev (bs=0x25f56f60, offset=9233408,
bytes=28160, qiov=0x25f6fa08, flags=0) at block/qcow2.c:1919
s = 0x25f63210
offset_in_cluster = 320512
ret = 0
cur_bytes = 28160
cluster_offset = 0
hd_qiov = {iov = 0x25f285a0, niov = 0, nalloc = 1, size = 0}
bytes_done = 0
cluster_data = 0x0
l2meta = 0x0
__PRETTY_FUNCTION__ = "qcow2_co_pwritev"
#9 0x00000000100a9648 in bdrv_driver_pwritev (bs=0x25f56f60, offset=9233408,
bytes=28160, qiov=0x25f6fa08, flags=16) at block/io.c:898
drv = 0x102036f0 <bdrv_qcow2>
sector_num = 636854560
nb_sectors = 598850083
ret = -1802855680
__PRETTY_FUNCTION__ = "bdrv_driver_pwritev"
#10 0x00000000100ab630 in bdrv_aligned_pwritev (child=0x25f627f0,
req=0x3fff9dadfdd8, offset=9233408, bytes=28160, align=1, qiov=0x25f6fa08,
flags=16)
at block/io.c:1440
bs = 0x25f56f60
drv = 0x102036f0 <bdrv_qcow2>
waited = false
ret = 0
end_sector = 18089
bytes_remaining = 28160
max_transfer = 2147483647
__PRETTY_FUNCTION__ = "bdrv_aligned_pwritev"
#11 0x00000000100ac4ac in bdrv_co_pwritev (child=0x25f627f0, offset=9233408,
bytes=28160, qiov=0x25f6fa08, flags=BDRV_REQ_FUA) at block/io.c:1691
---Type <return> to continue, or q <return> to quit---
bs = 0x25f56f60
req = {bs = 0x25f56f60, offset = 9233408, bytes = 28160, type =
BDRV_TRACKED_WRITE, serialising = false, overlap_offset = 9233408,
overlap_bytes = 28160, list = {le_next = 0x0, le_prev = 0x25f5a1d8},
co = 0x25f65a90, wait_queue = {entries = {sqh_first = 0x0,
sqh_last = 0x3fff9dadfe20}}, waiting_for = 0x0}
align = 1
head_buf = 0x0
tail_buf = 0x0
local_qiov = {iov = 0x3fff9dadfdb0, niov = -1649541648, nalloc = 16383,
size = 9233408}
use_local_qiov = false
ret = 0
__PRETTY_FUNCTION__ = "bdrv_co_pwritev"
#12 0x000000001008da0c in blk_co_pwritev (blk=0x25f49410, offset=9233408,
bytes=28160, qiov=0x25f6fa08, flags=BDRV_REQ_FUA) at block/block-backend.c:1085
ret = 0
bs = 0x25f56f60
#13 0x000000001008e718 in blk_aio_write_entry (opaque=0x25f6fa70) at
block/block-backend.c:1276
acb = 0x25f6fa70
rwco = 0x25f6fa98
__PRETTY_FUNCTION__ = "blk_aio_write_entry"
#14 0x00000000101aa444 in coroutine_trampoline (i0=636902032, i1=0) at
util/coroutine-ucontext.c:79
arg = {p = 0x25f65a90, i = {636902032, 0}}
self = 0x25f65a90
co = 0x25f65a90
#15 0x00003fffa0022b9c in makecontext () from /lib64/libc.so.6
No symbol table info available.
#16 0x0000000000000000 in ?? ()
No symbol table info available.
Will be attaching image_fuzzer image
** Affects: qemu
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of qemu-
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https://bugs.launchpad.net/bugs/1728635
Title:
qemu-io crashes with SIGSEGV when did -c aio_write 9233408 28160 on a
image_fuzzer image
Status in QEMU:
New
Bug description:
git is at HEAD a93ece47fd9edbd4558db24300056c9a57d3bcd4
This is on ppc64le architecture.
Re-production steps:
1. Copy the attached file named test.img to a directory
2. And customize the following command to point to the above directory and
run the same.
# cp test.img copy.img
# qemu/qemu-io <path to>/copy.img -c "aio_write 9233408 28160"
from gdb:
Program terminated with signal 11, Segmentation fault.
#0 0x00003fffa0077644 in __memcpy_power7 () from /lib64/libc.so.6
Missing separate debuginfos, use: debuginfo-install
cyrus-sasl-lib-2.1.26-21.el7.ppc64le glib2-2.50.3-3.el7.ppc64le
glibc-2.17-196.el7.ppc64le gmp-6.0.0-15.el7.ppc64le gnutls-3.3.26-9.el7.ppc64le
keyutils-libs-1.5.8-3.el7.ppc64le krb5-libs-1.15.1-8.el7.ppc64le
libaio-0.3.109-13.el7.ppc64le libcom_err-1.42.9-10.el7.ppc64le
libcurl-7.29.0-42.el7.ppc64le libffi-3.0.13-18.el7.ppc64le
libgcc-4.8.5-16.el7_4.1.ppc64le libidn-1.28-4.el7.ppc64le
libselinux-2.5-11.el7.ppc64le libssh2-1.4.3-10.el7_2.1.ppc64le
libstdc++-4.8.5-16.el7_4.1.ppc64le libtasn1-4.10-1.el7.ppc64le
nettle-2.7.1-8.el7.ppc64le nspr-4.13.1-1.0.el7_3.ppc64le
nss-3.28.4-15.el7_4.ppc64le nss-softokn-freebl-3.28.3-8.el7_4.ppc64le
nss-util-3.28.4-3.el7.ppc64le openldap-2.4.44-5.el7.ppc64le
openssl-libs-1.0.2k-8.el7.ppc64le p11-kit-0.23.5-3.el7.ppc64le
pcre-8.32-17.el7.ppc64le zlib-1.2.7-17.el7.ppc64le
(gdb) bt
#0 0x00003fffa0077644 in __memcpy_power7 () from /lib64/libc.so.6
#1 0x0000000010056738 in qcow2_refcount_area (bs=0x25f56f60,
start_offset=137438953472, additional_clusters=0, exact_size=false,
new_refblock_index=0,
new_refblock_offset=524288) at block/qcow2-refcount.c:573
#2 0x0000000010056374 in alloc_refcount_block (bs=0x25f56f60,
cluster_index=0, refcount_block=0x3fff9dadf838) at block/qcow2-refcount.c:479
#3 0x0000000010057520 in update_refcount (bs=0x25f56f60, offset=0,
length=524288, addend=1, decrease=false, type=QCOW2_DISCARD_NEVER)
at block/qcow2-refcount.c:834
#4 0x0000000010057c24 in qcow2_alloc_clusters (bs=0x25f56f60, size=524288)
at block/qcow2-refcount.c:996
#5 0x0000000010063684 in do_alloc_cluster_offset (bs=0x25f56f60,
guest_offset=9233408, host_offset=0x3fff9dadf9e0, nb_clusters=0x3fff9dadf9d8)
at block/qcow2-cluster.c:1213
#6 0x0000000010063afc in handle_alloc (bs=0x25f56f60, guest_offset=9233408,
host_offset=0x3fff9dadfab0, bytes=0x3fff9dadfab8, m=0x3fff9dadfb60)
at block/qcow2-cluster.c:1324
#7 0x0000000010064178 in qcow2_alloc_cluster_offset (bs=0x25f56f60,
offset=9233408, bytes=0x3fff9dadfb4c, host_offset=0x3fff9dadfb58,
m=0x3fff9dadfb60)
at block/qcow2-cluster.c:1511
#8 0x000000001004d3f4 in qcow2_co_pwritev (bs=0x25f56f60, offset=9233408,
bytes=28160, qiov=0x25f6fa08, flags=0) at block/qcow2.c:1919
#9 0x00000000100a9648 in bdrv_driver_pwritev (bs=0x25f56f60, offset=9233408,
bytes=28160, qiov=0x25f6fa08, flags=16) at block/io.c:898
#10 0x00000000100ab630 in bdrv_aligned_pwritev (child=0x25f627f0,
req=0x3fff9dadfdd8, offset=9233408, bytes=28160, align=1, qiov=0x25f6fa08,
flags=16)
at block/io.c:1440
#11 0x00000000100ac4ac in bdrv_co_pwritev (child=0x25f627f0, offset=9233408,
bytes=28160, qiov=0x25f6fa08, flags=BDRV_REQ_FUA) at block/io.c:1691
#12 0x000000001008da0c in blk_co_pwritev (blk=0x25f49410, offset=9233408,
bytes=28160, qiov=0x25f6fa08, flags=BDRV_REQ_FUA) at block/block-backend.c:1085
#13 0x000000001008e718 in blk_aio_write_entry (opaque=0x25f6fa70) at
block/block-backend.c:1276
#14 0x00000000101aa444 in coroutine_trampoline (i0=636902032, i1=0) at
util/coroutine-ucontext.c:79
#15 0x00003fffa0022b9c in makecontext () from /lib64/libc.so.6
#16 0x0000000000000000 in ?? ()
(gdb) bt full
#0 0x00003fffa0077644 in __memcpy_power7 () from /lib64/libc.so.6
No symbol table info available.
#1 0x0000000010056738 in qcow2_refcount_area (bs=0x25f56f60,
start_offset=137438953472, additional_clusters=0, exact_size=false,
new_refblock_index=0,
new_refblock_offset=524288) at block/qcow2-refcount.c:573
s = 0x25f63210
total_refblock_count_u64 = 2
additional_refblock_count = 0
total_refblock_count = 2
table_size = 65536
area_reftable_index = 1
table_clusters = 1
i = 0
table_offset = 268870620
block_offset = 70367094634128
end_offset = 636891296
ret = 636786432
new_table = 0x3fff9d940010
__PRETTY_FUNCTION__ = "qcow2_refcount_area"
data = {d64 = 636841824, d32 = 1}
old_table_offset = 70367094634552
old_table_size = 636786432
#2 0x0000000010056374 in alloc_refcount_block (bs=0x25f56f60,
cluster_index=0, refcount_block=0x3fff9dadf838) at block/qcow2-refcount.c:479
s = 0x25f63210
refcount_table_index = 0
ret = 0
new_block = 524288
blocks_used = 1
meta_offset = 137438953472
#3 0x0000000010057520 in update_refcount (bs=0x25f56f60, offset=0,
length=524288, addend=1, decrease=false, type=QCOW2_DISCARD_NEVER)
at block/qcow2-refcount.c:834
block_index = 268794524
refcount = 4563798300
cluster_index = 0
table_index = 0
s = 0x25f63210
start = 0
last = 0
cluster_offset = 0
refcount_block = 0x0
old_table_index = -1
ret = 0
#4 0x0000000010057c24 in qcow2_alloc_clusters (bs=0x25f56f60, size=524288)
at block/qcow2-refcount.c:996
offset = 0
ret = 0
#5 0x0000000010063684 in do_alloc_cluster_offset (bs=0x25f56f60,
guest_offset=9233408, host_offset=0x3fff9dadf9e0, nb_clusters=0x3fff9dadf9d8)
at block/qcow2-cluster.c:1213
cluster_offset = 0
s = 0x25f63210
#6 0x0000000010063afc in handle_alloc (bs=0x25f56f60, guest_offset=9233408,
host_offset=0x3fff9dadfab0, bytes=0x3fff9dadfab8, m=0x3fff9dadfb60)
at block/qcow2-cluster.c:1324
---Type <return> to continue, or q <return> to quit---
s = 0x25f63210
l2_index = 17
l2_table = 0x0
entry = 0
nb_clusters = 1
ret = 0
keep_old_clusters = false
alloc_cluster_offset = 0
__PRETTY_FUNCTION__ = "handle_alloc"
requested_bytes = 73651285856
avail_bytes = -1649542304
nb_bytes = 16383
old_m = 0x3fff00000000
#7 0x0000000010064178 in qcow2_alloc_cluster_offset (bs=0x25f56f60,
offset=9233408, bytes=0x3fff9dadfb4c, host_offset=0x3fff9dadfb58,
m=0x3fff9dadfb60)
at block/qcow2-cluster.c:1511
s = 0x25f63210
start = 9233408
remaining = 28160
cluster_offset = 0
cur_bytes = 28160
ret = 0
__PRETTY_FUNCTION__ = "qcow2_alloc_cluster_offset"
#8 0x000000001004d3f4 in qcow2_co_pwritev (bs=0x25f56f60, offset=9233408,
bytes=28160, qiov=0x25f6fa08, flags=0) at block/qcow2.c:1919
s = 0x25f63210
offset_in_cluster = 320512
ret = 0
cur_bytes = 28160
cluster_offset = 0
hd_qiov = {iov = 0x25f285a0, niov = 0, nalloc = 1, size = 0}
bytes_done = 0
cluster_data = 0x0
l2meta = 0x0
__PRETTY_FUNCTION__ = "qcow2_co_pwritev"
#9 0x00000000100a9648 in bdrv_driver_pwritev (bs=0x25f56f60, offset=9233408,
bytes=28160, qiov=0x25f6fa08, flags=16) at block/io.c:898
drv = 0x102036f0 <bdrv_qcow2>
sector_num = 636854560
nb_sectors = 598850083
ret = -1802855680
__PRETTY_FUNCTION__ = "bdrv_driver_pwritev"
#10 0x00000000100ab630 in bdrv_aligned_pwritev (child=0x25f627f0,
req=0x3fff9dadfdd8, offset=9233408, bytes=28160, align=1, qiov=0x25f6fa08,
flags=16)
at block/io.c:1440
bs = 0x25f56f60
drv = 0x102036f0 <bdrv_qcow2>
waited = false
ret = 0
end_sector = 18089
bytes_remaining = 28160
max_transfer = 2147483647
__PRETTY_FUNCTION__ = "bdrv_aligned_pwritev"
#11 0x00000000100ac4ac in bdrv_co_pwritev (child=0x25f627f0, offset=9233408,
bytes=28160, qiov=0x25f6fa08, flags=BDRV_REQ_FUA) at block/io.c:1691
---Type <return> to continue, or q <return> to quit---
bs = 0x25f56f60
req = {bs = 0x25f56f60, offset = 9233408, bytes = 28160, type =
BDRV_TRACKED_WRITE, serialising = false, overlap_offset = 9233408,
overlap_bytes = 28160, list = {le_next = 0x0, le_prev =
0x25f5a1d8}, co = 0x25f65a90, wait_queue = {entries = {sqh_first = 0x0,
sqh_last = 0x3fff9dadfe20}}, waiting_for = 0x0}
align = 1
head_buf = 0x0
tail_buf = 0x0
local_qiov = {iov = 0x3fff9dadfdb0, niov = -1649541648, nalloc =
16383, size = 9233408}
use_local_qiov = false
ret = 0
__PRETTY_FUNCTION__ = "bdrv_co_pwritev"
#12 0x000000001008da0c in blk_co_pwritev (blk=0x25f49410, offset=9233408,
bytes=28160, qiov=0x25f6fa08, flags=BDRV_REQ_FUA) at block/block-backend.c:1085
ret = 0
bs = 0x25f56f60
#13 0x000000001008e718 in blk_aio_write_entry (opaque=0x25f6fa70) at
block/block-backend.c:1276
acb = 0x25f6fa70
rwco = 0x25f6fa98
__PRETTY_FUNCTION__ = "blk_aio_write_entry"
#14 0x00000000101aa444 in coroutine_trampoline (i0=636902032, i1=0) at
util/coroutine-ucontext.c:79
arg = {p = 0x25f65a90, i = {636902032, 0}}
self = 0x25f65a90
co = 0x25f65a90
#15 0x00003fffa0022b9c in makecontext () from /lib64/libc.so.6
No symbol table info available.
#16 0x0000000000000000 in ?? ()
No symbol table info available.
Will be attaching image_fuzzer image
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- [Qemu-devel] [Bug 1728635] [NEW] qemu-io crashes with SIGSEGV when did -c aio_write 9233408 28160 on a image_fuzzer image,
R.Nageswara Sastry <=