[lxc-users] LXD enters failed state when auto_update is on

[Stéphane Graber]

Hi,

I've fixed that issue yesterday, the fix is in the latest package (-0ubuntu3).

On Fri, Jun 30, 2017 at 11:33:48AM +0200, John Seland wrote:
> I was having an issue with lxd using an image from the latest daily build of
> artful 17.10 in that lxd entered failed state when starting. If images
> auto_update was set to 1, lxd would enter failed state when the trying to
> download from https://cloud-images.ubuntu.com/daily.
> The issue ocurred after updating lxd from 2.14 to 2.15.
> As lxd would not start I had to edit the lxd.db directly. Disabling
> auto_update using sqlite3 fixed the issue: sqlite> update images set
> auto_update=0 where id=8;
> 
> Lxd is running OK now but where lies the problem?
> Is it the auto_update? Is it the daily image download?
> Maybe using a daily build 17.10 image is not a good idea?
> Is the default for auto_update enabled or disabled?
> 
> The listing from my other hosts list the following:
> H1
> 17.04 Auto update: disabled
> 17.10 Auto update: disabled (was enabled and caused a problem)
> H2
> 16.04 Auto update: disabled
> 16.10 Auto update: enabled
> 17.04 Auto update: enabled
> H3
> 16.10 Auto update: enabled
> 
> Host: Ubuntu 17.04, Linux 4.10.0-26-generic, LXD 2.15
> From the log files:
> alias=17.10 lvl=info msg="Downloading image"
> server=https://cloud-images.ubuntu.com/daily t=2017-06-30T07:59:33+0200
> 
> juni 30 07:29:26 control lxd[4413]: panic: runtime error: invalid memory
> address or nil pointer dereference
> juni 30 07:29:26 control lxd[4413]: [signal SIGSEGV: segmentation violation
> code=0x1 addr=0x0 pc=0x564206c1d15b]
> juni 30 07:29:26 control lxd[4413]: goroutine 271 [running]:
> juni 30 07:29:26 control lxd[4413]: panic(0x564206dc8960, 0xc42000e070)
> juni 30 07:29:26 control lxd[4413]: /usr/lib/go-1.7/src/runtime/panic.go:500
> +0x1a1
> juni 30 07:29:26 control lxd[4413]:
> github.com/lxc/lxd/shared/cancel.CancelableDownload.func1(0x0, 0xc420420a20,
> 0xc4200c42d0, 0xc42
> juni 30 07:29:26 control lxd[4413]: /build/lxd-fUvRgH/lxd-2.15/obj-x86_64-linux-gnu/src/github.com/lxc/lxd/shared/cancel/can
> juni 30 07:29:26 control lxd[4413]: created by
> github.com/lxc/lxd/shared/cancel.CancelableDownload
> juni 30 07:29:26 control lxd[4413]: /build/lxd-fUvRgH/lxd-2.15/obj-x86_64-linux-gnu/src/github.com/lxc/lxd/shared/cancel/can
> juni 30 07:29:26 control systemd[1]: lxd.service: Main process exited,
> code=exited, status=2/INVALIDARGUMENT

-- 
Stéphane Graber
Ubuntu developer
http://www.ubuntu.com
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