From: Beraldo Leal <1899082@bugs.launchpad.net>
To: qemu-devel@nongnu.org
Subject: [Bug 1899082] Re: ReplayKernel.test_x86_64_pc fails intermittently
Date: Wed, 10 Feb 2021 22:48:13 -0000 [thread overview]
Message-ID: <161299729396.32165.7957304609151466559.malone@gac.canonical.com> (raw)
In-Reply-To: 160219062643.30310.16188463455229225461.malonedeb@gac.canonical.com
I could reproduce this without Avocado:
--
#!/bin/bash
SOCKET="/tmp/qemu.sock"
VMLINUZ_PATH="/tmp/vmlinuz"
REPLAY_FILE="/tmp/replay.bin"
function run_and_wait() {
/usr/bin/qemu-system-x86_64 -display none \
-vga none \
-machine pc \
-chardev socket,id=console,path=${SOCKET},server=on,wait=off \
-serial chardev:console \
-icount shift=5,rr=$1,rrfile=${REPLAY_FILE} \
-kernel ${VMLINUZ_PATH} \
-append "printk.time=1 panic=-1 console=ttyS0" -net none -no-reboot &
# Wait a little for the socket creation
sleep 1
socat - UNIX-CONNECT:${SOCKET}
echo $?
}
run_and_wait "record"
echo "Was this (record) finished?"
run_and_wait "replay"
echo "Was this (replay) finished?"
--
The second echo is never displayed and my console stops here:
---
[ 0.036667] Speculative Store Bypass: Vulnerable
[ 0.256061] random: fast init done
[ 0.308652] Freeing SMP alternatives memory: 36K
---
--
You received this bug notification because you are a member of qemu-
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https://bugs.launchpad.net/bugs/1899082
Title:
ReplayKernel.test_x86_64_pc fails intermittently
Status in QEMU:
New
Bug description:
Even though this acceptance test is already skipped on GitLab CI, the
intermittent failures can be seen on other environments too.
The record phase works fine, but during the replay phase fail to
finish booting the kernel (until the expected place):
16:34:47 DEBUG| [ 0.034498] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0
16:34:47 DEBUG| [ 0.034790] Spectre V2 : Spectre mitigation: LFENCE not serializing, switching to generic retpoline
16:34:47 DEBUG| [ 0.035093] Spectre V2 : Mitigation: Full generic retpoline
16:34:47 DEBUG| [ 0.035347] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch
16:34:47 DEBUG| [ 0.035667]
16:36:02 ERROR|
16:36:02 ERROR| Reproduced traceback from: /home/cleber/src/avocado/avocado/avocado/core/test.py:767
16:36:02 ERROR| Traceback (most recent call last):
16:36:02 ERROR| File "/var/lib/users/cleber/build/qemu/tests/acceptance/replay_kernel.py", line 92, in test_x86_64_pc
16:36:02 ERROR| self.run_rr(kernel_path, kernel_command_line, console_pattern, shift=5)
16:36:02 ERROR| File "/var/lib/users/cleber/build/qemu/tests/acceptance/replay_kernel.py", line 73, in run_rr
16:36:02 ERROR| False, shift, args, replay_path)
16:36:02 ERROR| File "/var/lib/users/cleber/build/qemu/tests/acceptance/replay_kernel.py", line 55, in run_vm
16:36:02 ERROR| self.wait_for_console_pattern(console_pattern, vm)
16:36:02 ERROR| File "/var/lib/users/cleber/build/qemu/tests/acceptance/boot_linux_console.py", line 53, in wait_for_console_pattern
16:36:02 ERROR| vm=vm)
16:36:02 ERROR| File "/var/lib/users/cleber/build/qemu/tests/acceptance/avocado_qemu/__init__.py", line 130, in wait_for_console_pattern
16:36:02 ERROR| _console_interaction(test, success_message, failure_message, None, vm=vm)
16:36:02 ERROR| File "/var/lib/users/cleber/build/qemu/tests/acceptance/avocado_qemu/__init__.py", line 82, in _console_interaction
16:36:02 ERROR| msg = console.readline().strip()
16:36:02 ERROR| File "/usr/lib64/python3.7/socket.py", line 575, in readinto
16:36:02 ERROR| def readinto(self, b):
16:36:02 ERROR| File "/home/cleber/src/avocado/avocado/avocado/plugins/runner.py", line 77, in sigterm_handler
16:36:02 ERROR| raise RuntimeError("Test interrupted by SIGTERM")
16:36:02 ERROR| RuntimeError: Test interrupted by SIGTERM
16:36:02 ERROR|
On my workstation, I can replicate the failure roughly once every 50
runs.
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next prev parent reply other threads:[~2021-02-10 22:57 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-08 20:57 [Bug 1899082] [NEW] ReplayKernel.test_x86_64_pc fails intermittently Cleber Rosa
2020-10-08 21:14 ` [Bug 1899082] " Cleber Rosa
2020-10-09 6:01 ` Pavel Dovgalyuk
2020-10-09 7:21 ` Pavel Dovgalyuk
2020-10-14 8:14 ` Pavel Dovgalyuk
2021-02-10 22:48 ` Beraldo Leal [this message]
2021-02-11 4:46 ` Cleber Rosa
2021-02-11 8:41 ` Pavel Dovgalyuk
2021-05-09 14:29 ` Thomas Huth
2021-07-09 4:17 ` Launchpad Bug Tracker
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