lkml.org 
[lkml]   [2020]   [Jun]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    SubjectRe: linux-next: umh: fix processed error when UMH_WAIT_PROC is used seems to break linux bridge on s390x (bisected)
    From
    Date


    On 23.06.20 16:23, Christian Borntraeger wrote:
    >
    >
    > On 23.06.20 16:11, Christian Borntraeger wrote:
    >> Jens Markwardt reported a regression in the linux-next runs. with "umh: fix
    >> processed error when UMH_WAIT_PROC is used" (from linux-next) a linux bridge
    >> with an KVM guests no longer activates :
    >>
    >> without patch
    >> # ip addr show dev virbr1
    >> 6: virbr1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    >> link/ether 52:54:00:1e:3f:c0 brd ff:ff:ff:ff:ff:ff
    >> inet 192.168.254.254/24 brd 192.168.254.255 scope global virbr1
    >> valid_lft forever preferred_lft forever
    >>
    >> with this patch the bridge stays DOWN with NO-CARRIER
    >>
    >> # ip addr show dev virbr1
    >> 6: virbr1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
    >> link/ether 52:54:00:1e:3f:c0 brd ff:ff:ff:ff:ff:ff
    >> inet 192.168.254.254/24 brd 192.168.254.255 scope global virbr1
    >> valid_lft forever preferred_lft forever
    >>
    >> This was bisected in linux-next. Reverting from linux-next also fixes the issue.
    >>
    >> Any idea?
    >
    > FWIW, s390 is big endian. Maybe some of the shifts inn the __KW* macros are wrong.

    Does anyone have an idea why "umh: fix processed error when UMH_WAIT_PROC is used" breaks the
    linux-bridge on s390?

    \
     
     \ /
      Last update: 2020-06-24 13:18    [W:3.671 / U:0.044 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site