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| author | Igor Mammedov <imammedo@redhat.com> | 2020-03-25 05:44:22 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-04-14 10:35:08 -0400 |
| commit | 2a4e02d104b15e0335fbb71af7e069751d7d33b7 (patch) | |
| tree | a72e1acdf72a561caf0669d42dad0cdedd308ee0 /backends | |
| parent | 267514b33ffa3f315adc26fc14d89f92e90840f5 (diff) | |
| download | qemu-2a4e02d104b15e0335fbb71af7e069751d7d33b7.zip qemu-2a4e02d104b15e0335fbb71af7e069751d7d33b7.tar.gz qemu-2a4e02d104b15e0335fbb71af7e069751d7d33b7.tar.bz2 | |
hostmem: set default prealloc_threads to valid value
Commit 4ebc74dbbf removed default prealloc_threads initialization
by mistake, and that makes QEMU crash with division on zero at
numpages_per_thread = numpages / memset_num_threads;
when QEMU is started with following backend
-object memory-backend-ram,id=ram-node0,prealloc=yes,size=128M
Return back initialization removed by 4ebc74dbbf to fix issue.
Fixes: 4ebc74dbbf7ad50e4101629f3f5da5fdc1544051
Reported-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20200325094423.24293-2-imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'backends')
| -rw-r--r-- | backends/hostmem.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/backends/hostmem.c b/backends/hostmem.c index a70867b..327f9ee 100644 --- a/backends/hostmem.c +++ b/backends/hostmem.c @@ -280,6 +280,7 @@ static void host_memory_backend_init(Object *obj) /* TODO: convert access to globals to compat properties */ backend->merge = machine_mem_merge(machine); backend->dump = machine_dump_guest_core(machine); + backend->prealloc_threads = 1; } static void host_memory_backend_post_init(Object *obj) |