On Wed, 1 Aug 2007, Chris Rankin wrote:
> --- Satyam Sharma <[EMAIL PROTECTED]> wrote: > > I expect this is easy to reproduce at will (when shutting down nfs > > services, probably), right? > > I'm not sure about the "at will" part because this is the first time I've > seen it since 2.6.22 was > released. However, I was upgrading my Fedora 7 nfs-utils package at the time > so it probably did > happen when the NFS service was being shut down. Hmm, the backtrace suggests it should be reproducible fairly frequently. > > Please try the latest mainline -git kernel (say 2.6.23-rc1-git10 from > > kernel.org) and let us know if this still occurs? There were some fixes > > regarding sysfs symlink refcounting that went in recently, and this looks > > like one of those cases to me. > > Do you have the actual patches instead? I was thinking maybe this one: http://lkml.org/lkml/diff/2007/7/18/48/1 The kref_put() there happens on the sysfs_remove_link() path, and the patch above fixed an extra put() during create_link(), which lead to the final put() during remove_link() being what causes this underflow. However, a lot changed in sysfs in the past few months, and I'm not really sure that patch would apply cleanly. Hence, if you can try with the latest -git ... Thanks, Satyam - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
