8c721a87ae
- Remove deprecated patch "work-around-SA_RESTART-race" (boo#982208) - Patch queue updated from git://github.com/openSUSE/qemu.git opensuse-2.6 * Patches dropped: 0002-XXX-work-around-SA_RESTART-race-wit.patch 0003-qemu-0.9.0.cvs-binfmt.patch 0004-qemu-cvs-alsa_bitfield.patch 0005-qemu-cvs-alsa_ioctl.patch 0006-qemu-cvs-alsa_mmap.patch 0007-qemu-cvs-gettimeofday.patch 0008-qemu-cvs-ioctl_debug.patch 0009-qemu-cvs-ioctl_nodirection.patch 0010-block-vmdk-Support-creation-of-SCSI.patch 0011-linux-user-add-binfmt-wrapper-for-a.patch 0012-PPC-KVM-Disable-mmu-notifier-check.patch 0013-linux-user-fix-segfault-deadlock.patch 0014-linux-user-binfmt-support-host-bina.patch 0015-linux-user-Ignore-broken-loop-ioctl.patch 0016-linux-user-lock-tcg.patch 0017-linux-user-Run-multi-threaded-code-.patch 0018-linux-user-lock-tb-flushing-too.patch 0019-linux-user-Fake-proc-cpuinfo.patch 0020-linux-user-implement-FS_IOC_GETFLAG.patch 0021-linux-user-implement-FS_IOC_SETFLAG.patch 0022-linux-user-XXX-disable-fiemap.patch 0023-slirp-nooutgoing.patch 0024-vnc-password-file-and-incoming-conn.patch 0025-linux-user-add-more-blk-ioctls.patch 0026-linux-user-use-target_ulong.patch 0027-block-Add-support-for-DictZip-enabl.patch 0028-block-Add-tar-container-format.patch OBS-URL: https://build.opensuse.org/request/show/408549 OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=305
41 lines
1.3 KiB
Diff
41 lines
1.3 KiB
Diff
From 7f1e160917ebff1a756d08c9b07b88452a68387f Mon Sep 17 00:00:00 2001
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From: Alexander Graf <agraf@suse.de>
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Date: Wed, 14 Jan 2015 01:32:11 +0100
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Subject: [PATCH] AIO: Reduce number of threads for 32bit hosts
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On hosts with limited virtual address space (32bit pointers), we can very
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easily run out of virtual memory with big thread pools.
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Instead, we should limit ourselves to small pools to keep memory footprint
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low on those systems.
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This patch fixes random VM stalls like
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(process:25114): GLib-ERROR **: gmem.c:103: failed to allocate 1048576 bytes
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on 32bit ARM systems for me.
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Signed-off-by: Alexander Graf <agraf@suse.de>
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---
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thread-pool.c | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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diff --git a/thread-pool.c b/thread-pool.c
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index 03ba0b0..b5b4fd3 100644
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--- a/thread-pool.c
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+++ b/thread-pool.c
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@@ -297,7 +297,12 @@ static void thread_pool_init_one(ThreadPool *pool, AioContext *ctx)
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qemu_mutex_init(&pool->lock);
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qemu_cond_init(&pool->worker_stopped);
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qemu_sem_init(&pool->sem, 0);
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- pool->max_threads = 64;
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+ if (sizeof(pool) == 4) {
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+ /* 32bit systems run out of virtual memory quickly */
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+ pool->max_threads = 4;
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+ } else {
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+ pool->max_threads = 64;
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+ }
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pool->new_thread_bh = aio_bh_new(ctx, spawn_thread_bh_fn, pool);
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QLIST_INIT(&pool->head);
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