On 2012/7/4 15:32, Joel Becker wrote: > On Mon, Jan 30, 2012 at 09:51:22PM -0800, Srinivas Eeda wrote: >> When ocfs2dc thread holds dc_task_lock spinlock and receives soft IRQ it >> deadlock itself trying to get same spinlock in ocfs2_wake_downconvert_thread. >> Below is the stack snippet. >> >> The patch disables interrupts when acquiring dc_task_lock spinlock. >> >> ocfs2_wake_downconvert_thread >> ocfs2_rw_unlock >> ocfs2_dio_end_io >> dio_complete >> ..... >> bio_endio >> req_bio_endio >> .... >> scsi_io_completion >> blk_done_softirq >> __do_softirq >> do_softirq >> irq_exit >> do_IRQ >> ocfs2_downconvert_thread >> [kthread] >> >> Signed-off-by: Srinivas Eeda <srinivas.e...@oracle.com> > > This patch is now (finally) part of the 'fixes' branch of ocfs2.git. >
Recently we hit this bug too, and planned to send exactly the same fix.. _______________________________________________ Ocfs2-devel mailing list Ocfs2-devel@oss.oracle.com https://oss.oracle.com/mailman/listinfo/ocfs2-devel
