path: root/net/iucv
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authorAnton Vorontsov <avorontsov@ru.mvista.com>2009-07-08 20:09:44 -0700
committerDavid S. Miller <davem@davemloft.net>2009-07-08 20:09:44 -0700
commit1b614fb9a00e97b1eab54d4e442d405229c059dd (patch)
tree3260cee5b11a106e7f4e630171627c6e3e528a0f /net/iucv
parentMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 (diff)
netpoll: Fix carrier detection for drivers that are using phylib
Using early netconsole and gianfar driver this error pops up: netconsole: timeout waiting for carrier It appears that net/core/netpoll.c:netpoll_setup() is using cond_resched() in a loop waiting for a carrier. The thing is that cond_resched() is a no-op when system_state != SYSTEM_RUNNING, and so drivers/net/phy/phy.c's state_queue is never scheduled, therefore link detection doesn't work. I belive that the main problem is in cond_resched()[1], but despite how the cond_resched() story ends, it might be a good idea to call msleep(1) instead of cond_resched(), as suggested by Andrew Morton. [1] http://lkml.org/lkml/2009/7/7/463 Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/iucv')
0 files changed, 0 insertions, 0 deletions