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Diffstat (limited to 'results/classifier/zero-shot/108/graphic/1681')
| -rw-r--r-- | results/classifier/zero-shot/108/graphic/1681 | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/results/classifier/zero-shot/108/graphic/1681 b/results/classifier/zero-shot/108/graphic/1681 new file mode 100644 index 000000000..b6545434c --- /dev/null +++ b/results/classifier/zero-shot/108/graphic/1681 @@ -0,0 +1,64 @@ +graphic: 0.936 +other: 0.931 +permissions: 0.930 +debug: 0.908 +device: 0.889 +KVM: 0.887 +vnc: 0.883 +performance: 0.876 +PID: 0.868 +semantic: 0.852 +network: 0.812 +files: 0.800 +socket: 0.796 +boot: 0.773 + +watchdog: BUG: soft lockup - CPU#N stuck for XXs! +Description of problem: +Repeatedly seeing Qemu VMs locking up with guest Linux kernel reporting: +"watchdog: BUG: soft lockup - CPU#<N> stuck for <XX>s!" +e.g.: "watchdog: BUG: soft lockup - CPU#5 stuck for 26s! [swapper/5:0]" + +When the guest VM is in this condition, the host Linux OS reports that the Qemu process is typically running steadily at ~250% CPU. +Steps to reproduce: +1. Windows 10 on an x64 PC (right on the metal). +2. VMWare Workstation running Fedora Workstation 38 x64 guest, in turn acting as host with nested virtualization. +3. Qemu 7.2.1 running on Fedora host with Fedora Server 38 x64 guest. +4. Invoke Qemu using F38 QCow2 image: `$ qemu-system-x86_64 -machine pc -cpu max -smp 8 -accel kvm -accel hvf -accel tcg -m 3G -nographic -hda Client.qcow2 -nic socket,model=virtio-net-pci,mcast=239.1.2.3:4567,mac=4a:e0:72:85:c0:fb -nic user,model=virtio-net-pci,mac=4a:e0:d8:cd:a5:e6,hostfwd=tcp:127.0.0.1:2288-:22` +5. Not necessarily right away, but pretty consistently if left running overnight, guest Linux kernel repeatedly reports CPU(s) stuck, guest VM is unresponsive +6. Host Linux `top` reports Qemu process using ~250% CPU. +Additional information: +Console log attached, small sample here: + +``` +[ 181.101152] watchdog: BUG: soft lockup - CPU#5 stuck for 26s! [swapper/5:0] +[ 181.145578] Modules linked in: nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nfg +[ 181.145578] CPU: 5 PID: 0 Comm: swapper/5 Not tainted 6.2.9-300.fc38.x86_64 #1 +[ 181.145578] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-1.fc38 04/01/2014 +[ 181.145578] RIP: 0010:netif_receive_skb_list_internal+0x58/0x300 +[ 181.145578] Code: 4c 89 74 24 08 49 89 ec 4c 89 74 24 10 4c 8b 6d 00 48 39 ef 75 14 eb 7c 49 8b 8 +[ 181.145578] RSP: 0018:ff5a086d401b8da8 EFLAGS: 00000202 +[ 181.145578] RAX: 0000000000000000 RBX: ff2d02b1b404c910 RCX: 0000000000000100 +[ 181.145578] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ff2d02b1b404c910 +[ 181.145578] RBP: ff2d02b18998a600 R08: 0000000000000001 R09: ff2d02b188bd5d00 +[ 181.145578] R10: 000000000000000c R11: ffa7ad3980175000 R12: ff2d02b18998a600 +[ 181.145578] R13: ff2d02b1b404c910 R14: ff5a086d401b8db0 R15: ff2d02b1882d19c0 +[ 181.145578] FS: 0000000000000000(0000) GS:ff2d02b23cb40000(0000) knlGS:0000000000000000 +[ 181.145578] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 +[ 181.145578] CR2: 00007f232000f0d8 CR3: 0000000027010000 CR4: 0000000000751ee0 +[ 181.145578] PKRU: 55555554 +[ 181.145578] Call Trace: +[ 181.145578] <IRQ> +[ 181.145578] napi_complete_done+0x6e/0x1a0 +[ 181.145578] virtnet_poll+0x420/0x550 [virtio_net] +[ 181.145578] __napi_poll+0x2b/0x1b0 +[ 181.145578] net_rx_action+0x2a5/0x360 +[ 181.145578] ? vp_vring_interrupt+0x73/0x90 +[ 181.145578] __do_softirq+0xfd/0x31a +[ 181.145578] __irq_exit_rcu+0xd7/0x140 +[ 181.145578] common_interrupt+0xb9/0xd0 +[ 181.145578] </IRQ> +[ 181.145578] <TASK> +[ 181.145578] asm_common_interrupt+0x22/0x40 +[ 181.145578] RIP: 0010:native_safe_halt+0xb/0x10 +``` |