> Fedora got a bug report of a crash with iSCSI: > > kernel BUG at include/linux/scatterlist.h:143! > ... > RIP: 0010:iscsit_do_crypto_hash_buf+0x154/0x180 [iscsi_target_mod] > ... > Call Trace: > ? iscsi_target_tx_thread+0x200/0x200 [iscsi_target_mod] > iscsit_get_rx_pdu+0x4cd/0xa90 [iscsi_target_mod] > ? native_sched_clock+0x3e/0xa0 > ? iscsi_target_tx_thread+0x200/0x200 [iscsi_target_mod] > iscsi_target_rx_thread+0x81/0xf0 [iscsi_target_mod] > kthread+0x120/0x140 > ? kthread_create_worker_on_cpu+0x70/0x70 > ret_from_fork+0x3a/0x50 > > This is a BUG_ON for using a stack buffer with a scatterlist. There > are two cases that trigger this bug. Switch to using a dynamically > allocated buffer for one case and do not assign a NULL buffer in > another case. Mike: Please review. Thanks! -- Martin K. Petersen Oracle Linux Engineering
