xprt_adjust_timeout: rq_timeout = 0! BUG: sleeping function called from invalid context at mm/slab.h:421 in_atomic(): 1, irqs_disabled(): 1, pid: 4544, name: syz-executor5 4 locks held by syz-executor5/4544: #0: (ptrval) (sb_writers#4){.+.+}, at: sb_start_write include/linux/fs.h:1550 [inline] #0: (ptrval) (sb_writers#4){.+.+}, at: mnt_want_write+0x3f/0xc0 fs/namespace.c:386 #1: (ptrval) (&type->i_mutex_dir_key/1){+.+.}, at: inode_lock_nested include/linux/fs.h:748 [inline] #1: (ptrval) (&type->i_mutex_dir_key/1){+.+.}, at: do_unlinkat+0x3c4/0xa10 fs/namei.c:4019 #2: (ptrval) (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:713 [inline] #2: (ptrval) (&sb->s_type->i_mutex_key#10){+.+.}, at: vfs_unlink+0xd1/0x510 fs/namei.c:3961 #3: (ptrval) (jbd2_handle){.+.+}, at: start_this_handle+0x581/0x1250 fs/jbd2/transaction.c:385 irq event stamp: 1128282 hardirqs last enabled at (1128281): [] lookup_bh_lru fs/buffer.c:1271 [inline] hardirqs last enabled at (1128281): [] __find_get_block+0x2b8/0xe50 fs/buffer.c:1283 hardirqs last disabled at (1128282): [] interrupt_entry+0xb5/0xf0 arch/x86/entry/entry_64.S:625 softirqs last enabled at (1128240): [] __do_softirq+0x778/0xaf5 kernel/softirq.c:311 softirqs last disabled at (1128233): [] invoke_softirq kernel/softirq.c:365 [inline] softirqs last disabled at (1128233): [] irq_exit+0x1d1/0x200 kernel/softirq.c:405 CPU: 1 PID: 4544 Comm: syz-executor5 Not tainted 4.17.0-rc2+ #24 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1b9/0x294 lib/dump_stack.c:113 ___might_sleep.cold.87+0x11f/0x13a kernel/sched/core.c:6188 __might_sleep+0x95/0x190 kernel/sched/core.c:6141 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3378 [inline] __do_kmalloc mm/slab.c:3716 [inline] __kmalloc+0x2b9/0x760 mm/slab.c:3727 kmalloc_array include/linux/slab.h:631 [inline] kcalloc include/linux/slab.h:642 [inline] numa_crng_init drivers/char/random.c:798 [inline] crng_reseed+0x427/0x920 drivers/char/random.c:923 credit_entropy_bits+0x98d/0xa30 drivers/char/random.c:708 add_interrupt_randomness+0x494/0x860 drivers/char/random.c:1254 handle_irq_event_percpu+0xf9/0x1c0 kernel/irq/handle.c:191 handle_irq_event+0xa7/0x135 kernel/irq/handle.c:206 handle_edge_irq+0x20f/0x870 kernel/irq/chip.c:791 generic_handle_irq_desc include/linux/irqdesc.h:159 [inline] handle_irq+0x18c/0x2e7 arch/x86/kernel/irq_64.c:77 do_IRQ+0x78/0x190 arch/x86/kernel/irq.c:245 common_interrupt+0xf/0xf arch/x86/entry/entry_64.S:642 RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:793 [inline] RIP: 0010:lookup_bh_lru fs/buffer.c:1271 [inline] RIP: 0010:__find_get_block+0x2f1/0xe50 fs/buffer.c:1283 RSP: 0018:ffff88019d51f2d8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffffd5 RAX: ffff88019d5145c0 RBX: ffff8801a96a81f8 RCX: 1ffff10033aa29d2 RDX: 0000000000000000 RSI: ffffffff81cfbaea RDI: ffff88019d514df4 RBP: ffff88019d51f468 R08: ffff88019d514df8 R09: 0000000000000006 R10: ffff88019d5145c0 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000028f20 R14: 000000000000000e R15: ffff8801a96a81f8 __getblk_gfp+0xd6/0xaf0 fs/buffer.c:1309 sb_getblk include/linux/buffer_head.h:327 [inline] __ext4_get_inode_loc+0x4c5/0x14a0 fs/ext4/inode.c:4526 ext4_get_inode_loc fs/ext4/inode.c:4639 [inline] ext4_reserve_inode_write+0xf8/0x260 fs/ext4/inode.c:5760 ext4_orphan_add+0x398/0xda0 fs/ext4/namei.c:2781 ext4_unlink+0xf2f/0x11e0 fs/ext4/namei.c:3041 vfs_unlink+0x2db/0x510 fs/namei.c:3970 do_unlinkat+0x6b8/0xa10 fs/namei.c:4033 __do_sys_unlink fs/namei.c:4080 [inline] __se_sys_unlink fs/namei.c:4078 [inline] __x64_sys_unlink+0x42/0x50 fs/namei.c:4078 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4556c7 RSP: 002b:00007ffeaef72c88 EFLAGS: 00000206 ORIG_RAX: 0000000000000057 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004556c7 RDX: 00000000018df9b3 RSI: 00007ffeaef72d20 RDI: 00007ffeaef72d20 RBP: 00007ffeaef74a30 R08: 0000000000000000 R09: 000000000000000c R10: 0000000000000006 R11: 0000000000000206 R12: 00000000018df940 R13: 0000000000000000 R14: 000000000000022a R15: 000000000001da33 random: crng init done xprt_adjust_timeout: rq_timeout = 0! tmpfs: No value for mount option 'âÄ,8' tmpfs: No value for mount option 'âÄ,8' gfs2: gfs2 mount does not exist “‘hMþ=ôå=²¨: renamed from lo autofs4:pid:11825:autofs4_fill_super: called with bogus options gfs2: gfs2 mount does not exist IPVS: ftp: loaded support on port[0] = 21 xprt_adjust_timeout: rq_timeout = 0! xprt_adjust_timeout: rq_timeout = 0! gfs2: gfs2 mount does not exist “‘hMþ=ôå=²¨: renamed from lo gfs2: gfs2 mount does not exist