Am 08.03.24 um 14:34 schrieb Thomas Lamprecht:
> Am 21/02/2024 um 15:33 schrieb Filip Schauer:
>> When attempting a CPU hotplug on an architecture other than x86_64, die
>> with a clean error instead of attempting a hotplug with a known
>> non-working device command line. Also move the corresponding FIXME up to
>> the error.
>>
>> Signed-off-by: Filip Schauer <f.scha...@proxmox.com>
>> ---
>> PVE/QemuServer/CPUConfig.pm | 4 +++-
>> 1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/PVE/QemuServer/CPUConfig.pm b/PVE/QemuServer/CPUConfig.pm
>> index 7d471f4..01e4515 100644
>> --- a/PVE/QemuServer/CPUConfig.pm
>> +++ b/PVE/QemuServer/CPUConfig.pm
>> @@ -417,6 +417,9 @@ sub get_custom_model {
>> sub print_cpu_device {
>> my ($conf, $arch, $id) = @_;
>>
>> + # FIXME: hot plugging other architectures like our unofficial arch64
>> support?
>> + die "Hotplug of non x86_64 CPU not yet supported" if $arch != 'x86_64';
>
> arbitrary strings need to be compared using `eq` and `ne`, as `==` and `!=`
> can
> only be used for numerics or strings that can be interpreted to one, so this
> never
> could work.
>
> Interestingly the if never triggers in the `!=` case but always triggers in
> the
> `==` case.
>
Because strings that cannot be parsed as a number are interpreted as 0,
so both (invalid) sides will be 0. Description of parsing rules (from
[0], wasn't able to find in official docs):
> It follows these basic rules:
>
> Ignore leading whitespace. This is handy when you extract a field out of
> columnar data and the number doesn't take up the entire column.
> Allow for a single leading sign (+ or -)
> Skip leading zeros (so, no octal)
> Capture decimal ASCII digits (0,1,2,3,4,5,6,7,8,9), allowing for a single
> decimal point (so, no semantic versioning numbers)
> Stop at the first non-decimal-digit character
> Whatever you have so far is the number. If you have nothing, the number
> is 0.
[0]:
https://stackoverflow.com/questions/70482447/why-is-00-equal-to-0-in-perl/70496787#70496787
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