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qemu/Raise-soft-address-space-limit-to-hard-l.patch
Bruce Rogers 64435eabdc Accepting request 730437 from Virtualization:Staging
Update to v4.1.0. Also includes other major packaging changes as follows:
There is a new package maintenance workflow - see README.PACKAGING for details.
The sibling packages qemu-linux-user and qemu-testsuite are now created with the Build Service's MultiBuild feature. This also necessitates combining the qemu-linux-user changelog content back into qemu's. Luckily the delta there is quite small. Note that the qemu spec file is now that much busier, but added section markers should help reduce the confusion. Also qemu is being enabled for RISCV host compatibility, so some changes are related to that as well.

OBS-URL: https://build.opensuse.org/request/show/730437
OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=487
2019-09-12 15:54:03 +00:00

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1.6 KiB
Diff

From: =?UTF-8?q?Andreas=20F=C3=A4rber?= <afaerber@suse.de>
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 <afaerber@suse.de>
[BR: add include for sys/resource.h]
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
vl.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/vl.c b/vl.c
index b426b3213461210565bd1db15a0c..2b864f7dbe8b60ace40fa3258a37 100644
--- a/vl.c
+++ b/vl.c
@@ -30,6 +30,7 @@
#include "qemu/cutils.h"
#include "qemu/help_option.h"
#include "qemu/uuid.h"
+#include <sys/resource.h>
#include "sysemu/seccomp.h"
#include "sysemu/tcg.h"
@@ -2889,6 +2890,7 @@ int main(int argc, char **argv, char **envp)
bool list_data_dirs = false;
char *dir, **dirs;
BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
+ struct rlimit rlimit_as;
os_set_line_buffering();
@@ -2900,6 +2902,16 @@ int main(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]);