From: =?UTF-8?q?Andreas=20F=C3=A4rber?= Date: Sun, 15 Jan 2012 19:53:49 +0100 Subject: Raise soft address space limit to hard limit MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit For SLES we want users to be able to use large memory configurations with KVM without fiddling with ulimit -Sv. Signed-off-by: Andreas Färber [BR: add include for sys/resource.h] Signed-off-by: Bruce Rogers --- softmmu/vl.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/softmmu/vl.c b/softmmu/vl.c index e6e0ad5a9259038413f855ef6374..eaab7bf13e8c51e93b3d0f348f06 100644 --- a/softmmu/vl.c +++ b/softmmu/vl.c @@ -34,6 +34,7 @@ #include "qemu/uuid.h" #include "sysemu/reset.h" #include "sysemu/runstate.h" +#include #include "sysemu/seccomp.h" #include "sysemu/tcg.h" #include "sysemu/xen.h" @@ -2899,6 +2900,7 @@ void qemu_init(int argc, char **argv, char **envp) BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue); QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list); int mem_prealloc = 0; /* force preallocation of physical target memory */ + struct rlimit rlimit_as; os_set_line_buffering(); @@ -2910,6 +2912,16 @@ void qemu_init(int argc, char **argv, char **envp) qemu_mutex_lock_iothread(); + /* + * Try to raise the soft address space limit. + * Default on SLES 11 SP2 is 80% of physical+swap memory. + */ + getrlimit(RLIMIT_AS, &rlimit_as); + if (rlimit_as.rlim_cur < rlimit_as.rlim_max) { + rlimit_as.rlim_cur = rlimit_as.rlim_max; + setrlimit(RLIMIT_AS, &rlimit_as); + } + atexit(qemu_run_exit_notifiers); qemu_init_exec_dir(argv[0]);