strace less mmc0.txt
execve("/usr/bin/less", ["less", "mmc0.txt"], 0xffffcc58c1a8 /* 51 vars */) = 0
brk(NULL) = 0xaaaaf2288000
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0xffff8b72a000
faccessat(AT_FDCWD, "/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or
directory)
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=20583, ...}, AT_EMPTY_PATH) =
0
mmap(NULL, 20583, PROT_READ, MAP_PRIVATE, 3, 0) = 0xffff8b724000
close(3) = 0
openat(AT_FDCWD, "/lib64/libtinfo.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0\267\0\1\0\0\0\0\0\0\0\0\0\0\0"...,
832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0755, st_size=231504, ...}, AT_EMPTY_PATH) =
0
mmap(NULL, 360832, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0xffff8b698000
mmap(0xffff8b6a0000, 295296, PROT_READ|PROT_EXEC,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0) = 0xffff8b6a0000
munmap(0xffff8b698000, 32768) = 0
munmap(0xffff8b6e9000, 29056) = 0
mprotect(0xffff8b6c9000, 90112, PROT_NONE) = 0
mmap(0xffff8b6df000, 40960, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2f000) = 0xffff8b6df000
close(3) = 0
openat(AT_FDCWD, "/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3,
"\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0\267\0\1\0\0\0\220\264\2\0\0\0\0\0"...,
832) = 832
pread64(3,
"\4\0\0\0\24\0\0\0\3\0\0\0GNU\0\305\350$SK\4\324\342\230\240\317b\vA3\260"...,
68, 768) = 68
newfstatat(3, "", {st_mode=S_IFREG|0755, st_size=2118080, ...}, AT_EMPTY_PATH)
= 0
mmap(NULL, 1895216, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0xffff8b4d1000
mmap(0xffff8b4e0000, 1829680, PROT_READ|PROT_EXEC,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0) = 0xffff8b4e0000
munmap(0xffff8b4d1000, 61440) = 0
munmap(0xffff8b69f000, 2864) = 0
mprotect(0xffff8b673000, 106496, PROT_NONE) = 0
mmap(0xffff8b68d000, 24576, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x19d000) = 0xffff8b68d000
mmap(0xffff8b693000, 47920, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xffff8b693000
close(3) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0xffff8b722000
set_tid_address(0xffff8b7220f0) = 6076
set_robust_list(0xffff8b722100, 24) = 0
rseq(0xffff8b7227c0, 0x20, 0, 0xd428bc00) = 0
mprotect(0xffff8b68d000, 12288, PROT_READ) = 0
mprotect(0xffff8b6df000, 4096, PROT_READ) = 0
mprotect(0xaaaabe98f000, 4096, PROT_READ) = 0
mprotect(0xffff8b72f000, 8192, PROT_READ) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024,
rlim_max=RLIM64_INFINITY}) = 0
munmap(0xffff8b724000, 20583) = 0
ioctl(1, TCGETS, {B1500000 opost isig icanon echo ...}) = 0
getrandom("\x63\x32\x32\x25\xf1\x9e\x1e\x9a", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0xaaaaf2288000
brk(0xaaaaf22a9000) = 0xaaaaf22a9000
openat(AT_FDCWD, "/usr/bin/.sysless", O_RDONLY) = -1 ENOENT (No such file or
directory)
openat(AT_FDCWD, "/etc/syslesskey", O_RDONLY) = -1 ENOENT (No such file or
directory)
openat(AT_FDCWD, "/etc/sysless", O_RDONLY) = -1 ENOENT (No such file or
directory)
openat(AT_FDCWD, "/root/.lesskey", O_RDONLY) = -1 ENOENT (No such file or
directory)
openat(AT_FDCWD, "/usr/etc/lesskey.bin", O_RDONLY) = 3
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=589, ...}, AT_EMPTY_PATH) = 0
lseek(3, 0, SEEK_SET) = 0
read(3, "\0M+Gc\33\2\33[A\0\2\33[B\0\f\33O5A\0\2\33O5B\0\f\33O5"..., 589) = 589
close(3) = 0
ioctl(1, TCGETS, {B1500000 opost isig icanon echo ...}) = 0
getuid() = 0
geteuid() = 0
getgid() = 0
getegid() = 0
getuid() = 0
newfstatat(AT_FDCWD, "/etc/terminfo", {st_mode=S_IFDIR|0755, st_size=4096,
...}, 0) = 0
newfstatat(AT_FDCWD, "/usr/share/terminfo", {st_mode=S_IFDIR|0755,
st_size=4096, ...}, 0) = 0
faccessat(AT_FDCWD, "/etc/terminfo/s/screen", R_OK) = -1 ENOENT (No such file
or directory)
faccessat(AT_FDCWD, "/usr/share/terminfo/s/screen", R_OK) = 0
openat(AT_FDCWD, "/usr/share/terminfo/s/screen", O_RDONLY) = 3
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=1607, ...}, AT_EMPTY_PATH) = 0
read(3, "\32\0011\0+\0\20\0i\1\265\2screen|VT 100/ANSI X"..., 32768) = 1607
read(3, "", 28672) = 0
close(3) = 0
ioctl(1, TCGETS, {B1500000 opost isig icanon echo ...}) = 0
ioctl(1, TCGETS, {B1500000 opost isig icanon echo ...}) = 0
ioctl(1, TCGETS, {B1500000 opost isig icanon echo ...}) = 0
ioctl(1, TCGETS, {B1500000 opost isig icanon echo ...}) = 0
ioctl(1, TIOCGWINSZ, {ws_row=41, ws_col=157, ws_xpixel=0, ws_ypixel=0}) = 0
ioctl(2, TIOCGWINSZ, {ws_row=41, ws_col=157, ws_xpixel=0, ws_ypixel=0}) = 0
openat(AT_FDCWD, "/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = -1
ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/locale.alias", O_RDONLY|O_CLOEXEC) = 3
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=2940, ...}, AT_EMPTY_PATH) = 0
read(3, "# Locale name alias data base.\n#"..., 4096) = 2940
read(3, "", 4096) = 0
close(3) = 0
openat(AT_FDCWD, "/usr/lib/locale/en_US.UTF-8/LC_CTYPE", O_RDONLY|O_CLOEXEC) =
-1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/locale/en_US.utf8/LC_CTYPE", O_RDONLY|O_CLOEXEC) = 3
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=353616, ...}, AT_EMPTY_PATH) =
0
mmap(NULL, 353616, PROT_READ, MAP_PRIVATE, 3, 0) = 0xffff8b489000
close(3) = 0
openat(AT_FDCWD, "/usr/lib64/gconv/gconv-modules.cache", O_RDONLY) = 3
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=26988, ...}, AT_EMPTY_PATH) =
0
mmap(NULL, 26988, PROT_READ, MAP_SHARED, 3, 0) = 0xffff8b71b000
close(3) = 0
futex(0xffff8b69236c, FUTEX_WAKE_PRIVATE, 2147483647) = 0
openat(AT_FDCWD, "/root/.lesshst", O_RDONLY) = 3
close(3) = 0
openat(AT_FDCWD, "/root/.lesshst", O_RDONLY) = 3
newfstatat(3, "", {st_mode=S_IFREG|0600, st_size=20, ...}, AT_EMPTY_PATH) = 0
read(3, ".less-history-file:\n", 4096) = 20
read(3, "", 4096) = 0
close(3) = 0
getcwd("/root", 1024) = 6
readlinkat(AT_FDCWD, "/root/mmc0.txt", 0xfffff3f0b0f0, 1023) = -1 EINVAL
(Invalid argument)
getcwd("/root", 1024) = 6
readlinkat(AT_FDCWD, "/root/mmc0.txt", 0xfffff3f0b0f0, 1023) = -1 EINVAL
(Invalid argument)
ioctl(2, TCGETS, {B1500000 opost isig icanon echo ...}) = 0
ioctl(2, TCGETS, {B1500000 opost isig icanon echo ...}) = 0
newfstatat(2, "", {st_mode=S_IFCHR|0620, st_rdev=makedev(0x4, 0x42), ...},
AT_EMPTY_PATH) = 0
readlinkat(AT_FDCWD, "/proc/self/fd/2", "/dev/ttyS2", 4095) = 10
newfstatat(AT_FDCWD, "/dev/ttyS2", {st_mode=S_IFCHR|0620, st_rdev=makedev(0x4,
0x42), ...}, 0) = 0
openat(AT_FDCWD, "/dev/ttyS2", O_RDONLY
cat /proc/6076/stack
[<0>] tty_port_block_til_ready+0x124/0x344
[<0>] tty_port_open+0xc8/0x26c
[<0>] uart_open+0x28/0x40
[<0>] tty_open+0x140/0x670
[<0>] chrdev_open+0xcc/0x21c
[<0>] do_dentry_open+0x1c0/0x38c
[<0>] vfs_open+0x38/0x44
[<0>] path_openat+0xa50/0x108c
[<0>] do_filp_open+0x8c/0x140
[<0>] do_sys_openat2+0xbc/0x174
[<0>] __arm64_sys_openat+0x70/0xb0
[<0>] invoke_syscall+0x78/0x100
[<0>] el0_svc_common.constprop.0+0x18c/0x190
[<0>] do_el0_svc+0x30/0x90
[<0>] el0_svc+0x34/0x130
[<0>] el0t_64_sync_handler+0x10c/0x140
[<0>] el0t_64_sync+0x1a0/0x1a4
Linux PinebookPro 5.18.9-1-default #1 SMP PREEMPT_DYNAMIC Sun Jul 3 08:04:03
UTC 2022 (0e67dc1) aarch64 aarch64 aarch64 GNU/Linux