588   ioctl(3, NS_GET_USERNS) = 4
596   ioctl(-1, BLKBSZGET, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(1, TIOCGWINSZ, 0xbfef2684) = -1 ENOTTY (Not a tty)
596   ioctl(-1, BLKBSZSET, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKFRAGET, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKGETSIZE, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKGETSIZE64, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKPG, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKRAGET, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKROGET, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKROSET, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKSECTGET, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKSECTGET, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKSSZGET, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKALIGNOFF, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKDISCARD, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKDISCARDZEROES, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKIOMIN, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKIOOPT, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKPBSZGET, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKROTATIONAL, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKSECDISCARD, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKZEROOUT, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKGETDISKSEQ, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKTRACESETUP, NULL) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKRASET, 3134983661) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKFRASET, 3134983661) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKROSET, [-559038737]) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKBSZSET, [-559038737]) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKDISCARD, [16045690984232390125, 18072662651950788621]) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKSECDISCARD, [16045690984232390125, 18072662651950788621]) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKZEROOUT, [16045690984232390125, 18072662651950788621]) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKPG, {op=BLKPG_RESIZE_PARTITION, flags=-559038737, datalen=-1159983635, data=0xfffffeed}) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKPG, {op=BLKPG_ADD_PARTITION, flags=-559038737, datalen=-1159983635, data={start=-377740712154513676, length=-376614795067539720, pno=-559038737, devname="AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"..., volname="BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB"...}}) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKTRACESETUP, {act_mask=41376, buf_size=2812716452, buf_nr=2880088488, start_lba=12948607251063418284, end_lba=13527328633768031668, pid=596}) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKRRPART) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKFLSBUF) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKTRACESTART) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKTRACESTOP) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, BLKTRACETEARDOWN) = -1 EBADF (Bad file descriptor)
596   ioctl(-1, _IOC(_IOC_READ, 0x12, 0xfe, 0xff), 0xbadc0ded) = -1 EBADF (Bad file descriptor)
596   +++ exited with 0 +++
588   --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=596, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
609   ioctl(-1, BLKBSZGET, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(1, TIOCGWINSZ, 0xbfef2684) = -1 ENOTTY (Not a tty)
609   ioctl(-1, BLKBSZSET, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKFRAGET, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKGETSIZE, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKGETSIZE64, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKPG, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKRAGET, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKROGET, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKROSET, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKSECTGET, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKSECTGET, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKSSZGET, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKALIGNOFF, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKDISCARD, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKDISCARDZEROES, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKIOMIN, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKIOOPT, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKPBSZGET, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKROTATIONAL, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKSECDISCARD, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKZEROOUT, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKGETDISKSEQ, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKTRACESETUP, NULL) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKRASET, 3134983661) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKFRASET, 3134983661) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKROSET, [-559038737]) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKBSZSET, [-559038737]) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKDISCARD, [16045690984232390125, 18072662651950788621]) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKSECDISCARD, [16045690984232390125, 18072662651950788621]) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKZEROOUT, [16045690984232390125, 18072662651950788621]) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKPG, {op=BLKPG_RESIZE_PARTITION, flags=-559038737, datalen=-1159983635, data=0xfffffeed}) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKPG, {op=BLKPG_ADD_PARTITION, flags=-559038737, datalen=-1159983635, data={start=-377740712154513676, length=-376614795067539720, pno=-559038737, devname="AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"..., volname="BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB"...}}) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKTRACESETUP, {act_mask=41376, buf_size=2812716452, buf_nr=2880088488, start_lba=12948607251063418284, end_lba=13527328633768031668, pid=2 /* 609 in strace's PID NS */}) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKRRPART) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKFLSBUF) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKTRACESTART) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKTRACESTOP) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, BLKTRACETEARDOWN) = -1 EBADF (Bad file descriptor)
609   ioctl(-1, _IOC(_IOC_READ, 0x12, 0xfe, 0xff), 0xbadc0ded) = -1 EBADF (Bad file descriptor)
609   +++ exited with 0 +++
588   --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=609, si_uid=65534, si_status=0, si_utime=0, si_stime=0} ---
626   ioctl(-1, BLKBSZGET, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(1, TIOCGWINSZ, 0xbfef2684) = -1 ENOTTY (Not a tty)
626   ioctl(-1, BLKBSZSET, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKFRAGET, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKGETSIZE, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKGETSIZE64, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKPG, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKRAGET, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKROGET, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKROSET, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKSECTGET, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKSECTGET, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKSSZGET, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKALIGNOFF, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKDISCARD, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKDISCARDZEROES, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKIOMIN, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKIOOPT, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKPBSZGET, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKROTATIONAL, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKSECDISCARD, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKZEROOUT, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKGETDISKSEQ, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKTRACESETUP, NULL) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKRASET, 3134983661) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKFRASET, 3134983661) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKROSET, [-559038737]) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKBSZSET, [-559038737]) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKDISCARD, [16045690984232390125, 18072662651950788621]) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKSECDISCARD, [16045690984232390125, 18072662651950788621]) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKZEROOUT, [16045690984232390125, 18072662651950788621]) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKPG, {op=BLKPG_RESIZE_PARTITION, flags=-559038737, datalen=-1159983635, data=0xfffffeed}) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKPG, {op=BLKPG_ADD_PARTITION, flags=-559038737, datalen=-1159983635, data={start=-377740712154513676, length=-376614795067539720, pno=-559038737, devname="AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"..., volname="BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB"...}}) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKTRACESETUP, {act_mask=41376, buf_size=2812716452, buf_nr=2880088488, start_lba=12948607251063418284, end_lba=13527328633768031668, pid=3 /* 626 in strace's PID NS */}) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKRRPART) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKFLSBUF) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKTRACESTART) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKTRACESTOP) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, BLKTRACETEARDOWN) = -1 EBADF (Bad file descriptor)
626   ioctl(-1, _IOC(_IOC_READ, 0x12, 0xfe, 0xff), 0xbadc0ded) = -1 EBADF (Bad file descriptor)
626   +++ exited with 0 +++
588   --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=626, si_uid=65534, si_status=0, si_utime=0, si_stime=0} ---
635   ioctl(-1, BLKBSZGET, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(1, TIOCGWINSZ, 0xbfef2684) = -1 ENOTTY (Not a tty)
635   ioctl(-1, BLKBSZSET, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKFRAGET, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKGETSIZE, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKGETSIZE64, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKPG, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKRAGET, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKROGET, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKROSET, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKSECTGET, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKSECTGET, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKSSZGET, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKALIGNOFF, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKDISCARD, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKDISCARDZEROES, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKIOMIN, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKIOOPT, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKPBSZGET, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKROTATIONAL, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKSECDISCARD, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKZEROOUT, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKGETDISKSEQ, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKTRACESETUP, NULL) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKRASET, 3134983661) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKFRASET, 3134983661) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKROSET, [-559038737]) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKBSZSET, [-559038737]) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKDISCARD, [16045690984232390125, 18072662651950788621]) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKSECDISCARD, [16045690984232390125, 18072662651950788621]) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKZEROOUT, [16045690984232390125, 18072662651950788621]) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKPG, {op=BLKPG_RESIZE_PARTITION, flags=-559038737, datalen=-1159983635, data=0xfffffeed}) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKPG, {op=BLKPG_ADD_PARTITION, flags=-559038737, datalen=-1159983635, data={start=-377740712154513676, length=-376614795067539720, pno=-559038737, devname="AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"..., volname="BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB"...}}) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKTRACESETUP, {act_mask=41376, buf_size=2812716452, buf_nr=2880088488, start_lba=12948607251063418284, end_lba=13527328633768031668, pid=4 /* 635 in strace's PID NS */}) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKRRPART) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKFLSBUF) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKTRACESTART) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKTRACESTOP) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, BLKTRACETEARDOWN) = -1 EBADF (Bad file descriptor)
635   ioctl(-1, _IOC(_IOC_READ, 0x12, 0xfe, 0xff), 0xbadc0ded) = -1 EBADF (Bad file descriptor)
635   +++ exited with 0 +++
588   --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=635, si_uid=65534, si_status=0, si_utime=0, si_stime=0} ---
647   ioctl(-1, BLKBSZGET, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(1, TIOCGWINSZ, 0xbfef2684) = -1 ENOTTY (Not a tty)
647   ioctl(-1, BLKBSZSET, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKFRAGET, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKGETSIZE, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKGETSIZE64, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKPG, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKRAGET, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKROGET, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKROSET, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKSECTGET, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKSECTGET, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKSSZGET, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKALIGNOFF, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKDISCARD, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKDISCARDZEROES, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKIOMIN, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKIOOPT, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKPBSZGET, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKROTATIONAL, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKSECDISCARD, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKZEROOUT, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKGETDISKSEQ, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKTRACESETUP, NULL) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKRASET, 3134983661) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKFRASET, 3134983661) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKROSET, [-559038737]) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKBSZSET, [-559038737]) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKDISCARD, [16045690984232390125, 18072662651950788621]) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKSECDISCARD, [16045690984232390125, 18072662651950788621]) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKZEROOUT, [16045690984232390125, 18072662651950788621]) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKPG, {op=BLKPG_RESIZE_PARTITION, flags=-559038737, datalen=-1159983635, data=0xfffffeed}) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKPG, {op=BLKPG_ADD_PARTITION, flags=-559038737, datalen=-1159983635, data={start=-377740712154513676, length=-376614795067539720, pno=-559038737, devname="AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"..., volname="BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB"...}}) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKTRACESETUP, {act_mask=41376, buf_size=2812716452, buf_nr=2880088488, start_lba=12948607251063418284, end_lba=13527328633768031668, pid=5 /* 647 in strace's PID NS */}) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKRRPART) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKFLSBUF) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKTRACESTART) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKTRACESTOP) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, BLKTRACETEARDOWN) = -1 EBADF (Bad file descriptor)
647   ioctl(-1, _IOC(_IOC_READ, 0x12, 0xfe, 0xff), 0xbadc0ded) = -1 EBADF (Bad file descriptor)
647   +++ exited with 0 +++
588   --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=647, si_uid=65534, si_status=0, si_utime=0, si_stime=0} ---
588   +++ exited with 0 +++
606   +++ exited with 0 +++
