Mounting ext4 fs on 4.5.0-rc1 [ 1176.592557] ================================================================================ [ 1176.592565] UBSAN: Undefined behaviour in fs/ext4/mballoc.c:1274:11 [ 1176.592567] shift exponent -1 is negative [ 1176.592571] CPU: 3 PID: 4976 Comm: QThread Not tainted 4.5.0-rc1 #252 [ 1176.592573] Hardware name: Apple Inc. MacBookPro10,2/Mac-AFD8A9D944EA4843, BIOS MBP102.88Z.0106.B0A.1509130955 09/13/2015 [ 1176.592575] 0000000000000000 0000000000000000 ffffffff8379dede ffff88021f4bf8b8 [ 1176.592578] ffffffff81b2e7d9 0000000000000007 ffff88021f4bf8e8 ffff88021f4bf8d0 [ 1176.592581] ffffffff81bcb87d ffffffffffffffff ffff88021f4bf968 ffffffff81bcc1c1 [ 1176.592583] Call Trace: [ 1176.592590] [<ffffffff81b2e7d9>] dump_stack+0x45/0x6c [ 1176.592595] [<ffffffff81bcb87d>] ubsan_epilogue+0xd/0x40 [ 1176.592597] [<ffffffff81bcc1c1>] __ubsan_handle_shift_out_of_bounds+0xf1/0x140 [ 1176.592601] [<ffffffff8163a847>] ? ext4_mb_init_cache+0x677/0x1570 [ 1176.592604] [<ffffffff81398ae9>] ? lru_cache_add+0x9/0x10 [ 1176.592607] [<ffffffff81633c02>] mb_find_order_for_block+0x132/0x1e0 [ 1176.592609] [<ffffffff81633e9e>] mb_find_extent+0xde/0x6d0 [ 1176.592611] [<ffffffff81646bfb>] ext4_mb_complex_scan_group+0x14b/0x8a0 [ 1176.592614] [<ffffffff816476f7>] ext4_mb_regular_allocator+0x3a7/0xcc0 [ 1176.592616] [<ffffffff8164da45>] ext4_mb_new_blocks+0x4c5/0x1270 [ 1176.592620] [<ffffffff8161b526>] ? ext4_ext_put_gap_in_cache+0x116/0x230 [ 1176.592622] [<ffffffff816275fc>] ext4_ext_map_blocks+0x81c/0x2280 [ 1176.592626] [<ffffffff8159e5f6>] ext4_map_blocks+0x1b6/0xe00 [ 1176.592628] [<ffffffff815a0579>] ext4_getblk+0x49/0x290 [ 1176.592630] [<ffffffff815a07ce>] ext4_bread+0xe/0xb0 [ 1176.592633] [<ffffffff815b932d>] ext4_append+0xad/0x340 [ 1176.592635] [<ffffffff815c6d84>] ext4_mkdir+0x344/0x970 [ 1176.592639] [<ffffffff8147f5c3>] vfs_mkdir+0x103/0x310 [ 1176.592642] [<ffffffff81487483>] SyS_mkdir+0x93/0x130 [ 1176.592645] [<ffffffff82b40a57>] entry_SYSCALL_64_fastpath+0x12/0x6a [ 1176.592647] ================================================================================ -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
