xen_invalidate_map_cache_entry is not expected to run in a
coroutine. Without this, there is crash:
signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44
threadid=<optimized out>) at pthread_kill.c:78
at /usr/src/debug/glibc/2.38+git-r0/sysdeps/posix/raise.c:26
fmt=0xffff9e1ca8a8 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n",
assertion=assertion@entry=0xaaaae0d25740 "!qemu_in_coroutine()",
file=file@entry=0xaaaae0d301a8 "../qemu-xen-dir-remote/block/graph-lock.c", line=line@entry=260,
function=function@entry=0xaaaae0e522c0 <__PRETTY_FUNCTION__.3> "bdrv_graph_rdlock_main_loop") at assert.c:92
assertion=assertion@entry=0xaaaae0d25740 "!qemu_in_coroutine()",
file=file@entry=0xaaaae0d301a8 "../qemu-xen-dir-remote/block/graph-lock.c", line=line@entry=260,
function=function@entry=0xaaaae0e522c0 <__PRETTY_FUNCTION__.3> "bdrv_graph_rdlock_main_loop") at assert.c:101
at ../qemu-xen-dir-remote/block/graph-lock.c:260
at /home/Freenix/work/sw-stash/xen/upstream/tools/qemu-xen-dir-remote/include/block/graph-lock.h:259
host=host@entry=0xffff742c8000, size=size@entry=2097152)
at ../qemu-xen-dir-remote/block/io.c:3362
host=0xffff742c8000, size=2097152)
at ../qemu-xen-dir-remote/block/block-backend.c:2859
host=<optimized out>, size=<optimized out>, max_size=<optimized out>)
at ../qemu-xen-dir-remote/block/block-ram-registrar.c:33
size=2097152, max_size=2097152)
at ../qemu-xen-dir-remote/hw/core/numa.c:883
buffer=buffer@entry=0xffff743c5000 "")
at ../qemu-xen-dir-remote/hw/xen/xen-mapcache.c:475
buffer=buffer@entry=0xffff743c5000 "")
at ../qemu-xen-dir-remote/hw/xen/xen-mapcache.c:487
as=as@entry=0xaaaae1ca3ae8 <address_space_memory>, buffer=0xffff743c5000,
len=<optimized out>, is_write=is_write@entry=true,
access_len=access_len@entry=32768)
at ../qemu-xen-dir-remote/system/physmem.c:3199
dir=DMA_DIRECTION_FROM_DEVICE, len=<optimized out>,
buffer=<optimized out>, as=0xaaaae1ca3ae8 <address_space_memory>)
at /home/Freenix/work/sw-stash/xen/upstream/tools/qemu-xen-dir-remote/include/sysemu/dma.h:236
elem=elem@entry=0xaaaaf620aa30, len=len@entry=32769)
at ../qemu-xen-dir-remote/hw/virtio/virtio.c:758
elem=elem@entry=0xaaaaf620aa30, len=len@entry=32769, idx=idx@entry=0)
at ../qemu-xen-dir-remote/hw/virtio/virtio.c:919
elem=elem@entry=0xaaaaf620aa30, len=32769)
at ../qemu-xen-dir-remote/hw/virtio/virtio.c:994
req=req@entry=0xaaaaf620aa30, status=status@entry=0 '\000')
at ../qemu-xen-dir-remote/hw/block/virtio-blk.c:67
ret=0) at ../qemu-xen-dir-remote/hw/block/virtio-blk.c:136
at ../qemu-xen-dir-remote/block/block-backend.c:1559
--Type <RET> for more, q to quit, c to continue without paging--
at ../qemu-xen-dir-remote/block/block-backend.c:1614
i1=<optimized out>) at ../qemu-xen-dir-remote/util/coroutine-ucontext.c:177
at ../sysdeps/unix/sysv/linux/aarch64/setcontext.S:123
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Message-Id: <20240124021450.21656-1-peng.fan@oss.nxp.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
(cherry picked from commit 9253d83062268209533df4b29859e5b51a2dc324)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
35ca0f7cbc