Created attachment 220111 [details] .config While booting, UBSAN reports an index out of range use in drivers/scsi/scsi_devinfo.c:458:21: [ 2.226941] ================================================================================ [ 2.226944] UBSAN: Undefined behaviour in /usr/local/src/kernel/linux-git/drivers/scsi/scsi_devinfo.c:458:21 [ 2.226945] index 8 is out of range for type 'char [8]' [ 2.226948] CPU: 3 PID: 6 Comm: kworker/u16:0 Not tainted 4.7.0-rc3-00002-g44c5afa #1 [ 2.226948] Hardware name: Apple Inc. MacBookPro8,2/Mac-94245A3940C91C80, BIOS MBP81.88Z.0047.B27.1201241646 01/24/12 [ 2.226955] Workqueue: events_unbound async_run_entry_fn [ 2.226958] 000000000000000e ffff88026614fa50 ffffffff815c8665 ffffffff81190e52 [ 2.226961] ffff88026614fa78 0000000000000008 ffff88026614fa68 ffffffff8163e77d [ 2.226963] ffffffff8263a560 ffff88026614fac0 ffffffff8163ee95 0000000000000286 [ 2.226963] Call Trace: [ 2.226968] [<ffffffff815c8665>] dump_stack+0x68/0xa3 [ 2.226971] [<ffffffff81190e52>] ? down_trylock+0x32/0x60 [ 2.226975] [<ffffffff8163e77d>] ubsan_epilogue+0xd/0x40 [ 2.226978] [<ffffffff8163ee95>] __ubsan_handle_out_of_bounds+0x75/0xa0 [ 2.226980] [<ffffffff8119758d>] ? trace_hardirqs_on+0xd/0x10 [ 2.226984] [<ffffffff817ccf49>] scsi_dev_info_list_find+0x279/0x2b0 [ 2.226986] [<ffffffff817cd49c>] scsi_get_device_flags_keyed+0x1c/0x80 [ 2.226989] [<ffffffff817cd50b>] scsi_get_device_flags+0xb/0x10 [ 2.226991] [<ffffffff817c6a79>] scsi_probe_and_add_lun+0x4b9/0x1200 [ 2.226993] [<ffffffff817c7fdb>] __scsi_add_device+0x11b/0x140 [ 2.226996] [<ffffffff817f920b>] ata_scsi_scan_host+0x10b/0x200 [ 2.226999] [<ffffffff817eefb5>] async_port_probe+0x45/0x80 [ 2.227001] [<ffffffff8114b052>] async_run_entry_fn+0x52/0x220 [ 2.227003] [<ffffffff8113b4a3>] process_one_work+0x273/0x8d0 [ 2.227005] [<ffffffff8113b43f>] ? process_one_work+0x20f/0x8d0 [ 2.227007] [<ffffffff8113bd0d>] worker_thread+0x20d/0x7e0 [ 2.227009] [<ffffffff8113bb00>] ? process_one_work+0x8d0/0x8d0 [ 2.227011] [<ffffffff81146dfd>] kthread+0x13d/0x1a0 [ 2.227016] [<ffffffff81b3232f>] ret_from_fork+0x1f/0x40 [ 2.227018] [<ffffffff81146cc0>] ? kthread_create_on_node+0x260/0x260 [ 2.227019] ================================================================================
This is fixed by commit 5e7ff2ca7f2da55fe777167849d0c93403bd0dc8
does not appear anymore in (at least) 4.10