Quoting Oren Laadan ([email protected]): > From: Oren Laadan <[email protected]> > > One may not call task_pid_vnr() on dead tasks because they don't have > a valid ->nxproxy pointer. However, the ckpt_ctx cleanup may be called > by a dead task from do_exit(), in the case of zombie or "ghost" tasks. > > This patch makes ckpt_debug() safe to call from dead tasks context, so > that debug printing from code called by ckpt_ctx_free() is cool. > > Signed-off-by: Oren Laadan <[email protected]>
Acked-by: Serge Hallyn <[email protected]> thanks, -serge > --- > include/linux/checkpoint.h | 4 +++- > 1 files changed, 3 insertions(+), 1 deletions(-) > > diff --git a/include/linux/checkpoint.h b/include/linux/checkpoint.h > index e00dd70..5294a96 100644 > --- a/include/linux/checkpoint.h > +++ b/include/linux/checkpoint.h > @@ -334,7 +334,9 @@ extern unsigned long ckpt_debug_level; > do { \ > if (ckpt_debug_level & (level)) \ > printk(KERN_DEBUG "[%d:%d:c/r:%s:%d] " fmt, \ > - current->pid, task_pid_vnr(current), \ > + current->pid, \ > + current->nsproxy ? \ > + task_pid_vnr(current) : -1, \ > __func__, __LINE__, ## args); \ > } while (0) > > -- > 1.6.0.4 > > _______________________________________________ > Containers mailing list > [email protected] > https://lists.linux-foundation.org/mailman/listinfo/containers _______________________________________________ Containers mailing list [email protected] https://lists.linux-foundation.org/mailman/listinfo/containers _______________________________________________ Devel mailing list [email protected] https://openvz.org/mailman/listinfo/devel
