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charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.29 Subject: Re: [pve-devel] [PATCH pve-common] fix #4299: network : disable_ipv6: fix path checking X-BeenThere: pve-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox VE development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Oct 2022 16:18:46 -0000 I'm really unable to reproduce this. User is able to reproduce it 100%, depending on the brigde where the vm is = started. (some bridge with sdn generated for example). I don't have asked to user to reboot. ifupdown2 seem to thrown warning too, so I don't known if it's a special sy= sctl triggering this, or a kernel bug, or something else. ________________________________ From: Wolfgang Bumiller Sent: Thursday, October 20, 2022 12:05 PM To: Alexandre Derumier Cc: pve-devel@lists.proxmox.com Subject: Re: [pve-devel] [PATCH pve-common] fix #4299: network : disable_ip= v6: fix path checking On Thu, Oct 20, 2022 at 12:24:29AM +0200, Alexandre Derumier wrote: > It's possible to have a > /proc/sys/net/ipv6/ directory > > but no > /proc/sys/net/ipv6/conf/$iface/disable_ipv6 Do we know why this happens? That doesn't seem right to me, unless some kind of race somewhere with the interface creation? Or is there a legitimate kernel option that causes this? > > Signed-off-by: Alexandre Derumier > --- > src/PVE/Network.pm | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/src/PVE/Network.pm b/src/PVE/Network.pm > index c468e40..9d726cd 100644 > --- a/src/PVE/Network.pm > +++ b/src/PVE/Network.pm > @@ -210,8 +210,8 @@ my $cond_create_bridge =3D sub { > > sub disable_ipv6 { > my ($iface) =3D @_; > - return if !-d '/proc/sys/net/ipv6'; # ipv6 might be completely disab= led > my $file =3D "/proc/sys/net/ipv6/conf/$iface/disable_ipv6"; > + return if !-e $file; # ipv6 might be completely disabled > open(my $fh, '>', $file) or die "failed to open $file for writing: $= !\n"; > print {$fh} "1\n" or die "failed to disable link-local ipv6 for $ifa= ce\n"; > close($fh); > -- > 2.30.2