diff options
Diffstat (limited to 'results/classifier/deepseek-2-tmp/output/manual-review/1426092')
| -rw-r--r-- | results/classifier/deepseek-2-tmp/output/manual-review/1426092 | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/results/classifier/deepseek-2-tmp/output/manual-review/1426092 b/results/classifier/deepseek-2-tmp/output/manual-review/1426092 deleted file mode 100644 index ce2d9e16..00000000 --- a/results/classifier/deepseek-2-tmp/output/manual-review/1426092 +++ /dev/null @@ -1,36 +0,0 @@ - -virtio-balloon-device locks up Guest - -Setting arbitrary balloon target values locks up the guest in some cases crashes it, if the target memory is < used +~5% free. -Found while testing aggressive memory over-commit, scenarios. -You get messages like: - -[ 155.827448] [<c002060c>] (show_stack) from [<c041c518>] (dump_stack+0x6c/0x88) -[ 155.837076] [<c041c518>] (dump_stack) from [<c0091994>] (warn_alloc_failed+0xe0/0x120) -[ 155.847075] [<c0091994>] (warn_alloc_failed) from [<c0094480>] (__alloc_pages_nodemask+0x600/0x91c) -[ 155.859039] [<c0094480>] (__alloc_pages_nodemask) from [<c00da414>] (balloon_page_enqueue+0x20/0xbc) -[ 155.870556] [<c00da414>] (balloon_page_enqueue) from [<c025d794>] (balloon+0x140/0x2cc) -[ 155.881377] [<c025d794>] (balloon) from [<c0043b38>] (kthread+0xd8/0xf4) - -page dumped bacause: nonzero _count -BUG: BAad page state in process Xorg pfn:396e5 - -Test Environment: -x86_64 -Ubuntu 13.10, Guest Linux Kernel 3.19, qemu 2.2.0 with following patches applied - balloon OOM enhancement -commit 5a10b7dbf904bfe01bb9fcc6298f7df09eed77d5 -Author: Raushaniya Maksudova <email address hidden> - -Boot guest with '-balloon virtio', -qmp .... -hmp access -1. sudo info balloon | socat - tcp4-connect:127.0.0.1:4444 - - or over qmp interface -{"execute":"qom-get", "arguments": { "path": "/machine/peripheral-anon/device[1]","property": "guest-stats" }} -{"return": {"stats": {"stat-swap-out": 0, "stat-free-memory": 513454080, "stat-minor-faults": 1261, "stat-major-faults": 0, "stat-total-memory": 526073856, "stat-swap-in": 0}, "last-update": 11109}} - -2. Take memory down check free memory using (1) -3. Issue "sudo echo balloon XXX | socat - tcp4-connect:127.0.0.1:4444" - XXX is value in threshold mentioned above - and you get Guest lockup - -ARM - samething except '-device virtio-balloon-device' used - -Libvirt - virsh setmem causes same issue. \ No newline at end of file |