[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Qemu-devel] Regression on KVM qemu-system-aarch64 since "monitor: enabl

From: Auger Eric
Subject: [Qemu-devel] Regression on KVM qemu-system-aarch64 since "monitor: enable IO thread for (qmp & !mux) typed"
Date: Fri, 23 Mar 2018 11:24:04 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0


I observe a regression on KVM accelerated qemu-system-aarch64:

Unexpected error in kvm_device_access() at
2018-03-23T09:59:59.629439Z qemu-system-aarch64: KVM_GET_DEVICE_ATTR
failed: Group 6 attr 0x000000000000c664: Device or resource busy
2018-03-23 10:00:00.085+0000: shutting down, reason=crashed

I did a bisect and it looks the commit that introduces the regression is

commit 3fd2457d18edf5736f713dfe1ada9c87a9badab1
Author: Peter Xu <address@hidden>
Date:   Fri Mar 9 17:00:03 2018 +0800

    monitor: enable IO thread for (qmp & !mux) typed

    Start to use dedicate IO thread for QMP monitors that are not using
    MUXed chardev.

    Reviewed-by: Fam Zheng <address@hidden>
    Reviewed-by: Stefan Hajnoczi <address@hidden>
    Signed-off-by: Peter Xu <address@hidden>
    Message-Id: <address@hidden>
    Signed-off-by: Eric Blake <address@hidden>

If reverted on top of v2.12.0-rc0, the guest boots fine again. The link
is not obvious though.



reply via email to

[Prev in Thread] Current Thread [Next in Thread]