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Re: [libvirt] [PATCH 2/3] virt-aa-helper: Call virCommandRawStatus()



On Mon, Aug 19, 2019 at 12:01:41PM +0200, Andrea Bolognani wrote:
The way we're processing the return status, using WIFEXITED() and
friends, only works when we have the raw return status; however,
virCommand defaults to processing the return status for us. Call
virCommandRawStatus() before virCommandRun() so that we get the raw
return status and the logic can actually work.

This results in guest startup failures caused by AppArmor issues
being reported much earlier: for example, if virt-aa-helper exits
with an error we're now reporting

 error: internal error: cannot load AppArmor profile 'libvirt-b20e9a8e-091a-45e0-8823-537119e98bc6'

instead of the misleading

 error: internal error: Process exited prior to exec: libvirt:
 error : unable to set AppArmor profile 'libvirt-b20e9a8e-091a-45e0-8823-537119e98bc6'
 for '/usr/bin/qemu-system-x86_64': No such file or directory

Signed-off-by: Andrea Bolognani <abologna redhat com>
---
src/security/virt-aa-helper.c | 1 +
1 file changed, 1 insertion(+)


Suggested-by: Ján Tomko <jtomko redhat com>
Reviewed-by: Ján Tomko <jtomko redhat com>

Jano

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