[<0>] signalfd_dequeue+0xfb/0x180
[<0>] signalfd_read+0x76/0xc0
[<0>] vfs_read+0xa7/0x330
[<0>] ksys_read+0x5f/0xe0
[<0>] do_syscall_64+0x5c/0x90
[<0>] entry_SYSCALL_64_after_hwframe+0x77/0xe1
