66bc8c37ca
Split off qemu-testsuite.spec to decouple retriggering the sometimes-failing tests from the lengthy build of the binaries. Extend test coverage to include iotests for block backends. Drop the SUSE-only MAC address warning for now, to keep output-checking tests from failing. Re-enable glusterfs support for Factory (updated to v3.6.2). Re-enable libseccomp support for armv7l (submission of patched v2.2.0 pending). OBS-URL: https://build.opensuse.org/request/show/295465 OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=248
41 lines
1.3 KiB
Diff
41 lines
1.3 KiB
Diff
From dd7584c2d0ffdd72da452681268cf3a9c21e98ee 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 e2cac8e..87a3ea9 100644
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--- a/thread-pool.c
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+++ b/thread-pool.c
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@@ -299,7 +299,12 @@ 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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