Messages in this thread | | | Date | Thu, 07 Mar 2013 17:50:18 +0800 | From | Michael Wang <> | Subject | Re: upgrade to 3.8.1 : BUG Scheduling while atomic in bonding driver: |
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On 03/07/2013 04:50 PM, Linda Walsh wrote: > > I am *not* seeing the bug in 3.8.2 with the 2nd patch applied (in > addition to the first)...
So that means bond lock is the reason, nice, but this is really not a good fix if we just unlock it...
The better way is to move the cycle wait logical out of the bond_update_speed_duplex() IMO, I think we need the folk who work on this driver to make the decision ;-)
Regards, Michael Wang
> > > Michael Wang wrote: >> >> >> And both bond_enslave() and bond_mii_monitor() are using bond_update_speed_duplex() >> with preempt disabled. >> >> Along with the changes in bond_enslave(), I think you also need this (untested): >> >> diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c >> index 11d01d6..9af143a 100644 >> --- a/drivers/net/bonding/bond_main.c >> +++ b/drivers/net/bonding/bond_main.c >> @@ -2373,7 +2373,9 @@ static void bond_miimon_commit(struct bonding *bond) >> bond_set_backup_slave(slave); >> } >> >> + read_unlock(&bond->lock); >> bond_update_speed_duplex(slave); >> + read_lock(&bond->lock); >> >> pr_info("%s: link status definitely up for interface %s, %u Mbps %s duplex.\n", >> bond->dev->name, slave->dev->name, >> >> >> Regards, >> Michael Wang >> >> >> >
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