On Tue, Oct 03, 2017 at 11:02:33AM +0800, Jia-Ju Bai wrote: > According to fcoe_ctlr.c, the driver may sleep under a RCU lock, > and the function call paths are: > fcoe_ctlr_disc_stop_locked (acquire the RCU lock) > fc_rport_logoff > mutex_lock --> may sleep > > fcoe_ctlr_vn_disc > fc_rport_login > mutex_lock --> may sleep > > fcoe_ctlr_vn_age > fc_rport_logoff > mutex_lock --> may sleep > > These bugs are found by my static analysis tool and my code review. > > Thanks, > Jia-Ju Bai > Thanks for the report, coincidentally I have a bug report for this as well (in a real setup not just static analysis) and gave the reporter a patch to test. Once it's verified I'll post it here. Thanks, Johannes -- Johannes Thumshirn Storage jthumshirn@xxxxxxx +49 911 74053 689 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg) Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850
