System errors are defined here

$ cat /usr/include/asm-generic/errno.h

#ifndef _ASM_GENERIC_ERRNO_H
#define _ASM_GENERIC_ERRNO_H

#include <asm-generic/errno-base.h>

#define EDEADLK   35  /* Resource deadlock would occur */
#define ENAMETOOLONG  36  /* File name too long */
#define ENOLCK    37  /* No record locks available */
#define ENOSYS    38  /* Function not implemented */
#define ENOTEMPTY 39  /* Directory not empty */
#define ELOOP   40  /* Too many symbolic links encountered */
#define EWOULDBLOCK EAGAIN  /* Operation would block */
#define ENOMSG    42  /* No message of desired type */
#define EIDRM   43  /* Identifier removed */
#define ECHRNG    44  /* Channel number out of range */
#define EL2NSYNC  45  /* Level 2 not synchronized */
#define EL3HLT    46  /* Level 3 halted */
#define EL3RST    47  /* Level 3 reset */
#define ELNRNG    48  /* Link number out of range */
#define EUNATCH   49  /* Protocol driver not attached */
#define ENOCSI    50  /* No CSI structure available */
#define EL2HLT    51  /* Level 2 halted */
#define EBADE   52  /* Invalid exchange */
#define EBADR   53  /* Invalid request descriptor */
#define EXFULL    54  /* Exchange full */
#define ENOANO    55  /* No anode */
#define EBADRQC   56  /* Invalid request code */
#define EBADSLT   57  /* Invalid slot */

#define EDEADLOCK EDEADLK

#define EBFONT    59  /* Bad font file format */
#define ENOSTR    60  /* Device not a stream */
#define ENODATA   61  /* No data available */
#define ETIME   62  /* Timer expired */
#define ENOSR   63  /* Out of streams resources */
#define ENONET    64  /* Machine is not on the network */
#define ENOPKG    65  /* Package not installed */
#define EREMOTE   66  /* Object is remote */
#define ENOLINK   67  /* Link has been severed */
#define EADV    68  /* Advertise error */
#define ESRMNT    69  /* Srmount error */
#define ECOMM   70  /* Communication error on send */
#define EPROTO    71  /* Protocol error */
#define EMULTIHOP 72  /* Multihop attempted */
#define EDOTDOT   73  /* RFS specific error */
#define EBADMSG   74  /* Not a data message */
#define EOVERFLOW 75  /* Value too large for defined data type */
#define ENOTUNIQ  76  /* Name not unique on network */
#define EBADFD    77  /* File descriptor in bad state */
#define EREMCHG   78  /* Remote address changed */
#define ELIBACC   79  /* Can not access a needed shared library */
#define ELIBBAD   80  /* Accessing a corrupted shared library */
#define ELIBSCN   81  /* .lib section in a.out corrupted */
#define ELIBMAX   82  /* Attempting to link in too many shared libraries */
#define ELIBEXEC  83  /* Cannot exec a shared library directly */
#define EILSEQ    84  /* Illegal byte sequence */
#define ERESTART  85  /* Interrupted system call should be restarted */
#define ESTRPIPE  86  /* Streams pipe error */
#define EUSERS    87  /* Too many users */
#define ENOTSOCK  88  /* Socket operation on non-socket */
#define EDESTADDRREQ  89  /* Destination address required */
#define EMSGSIZE  90  /* Message too long */
#define EPROTOTYPE  91  /* Protocol wrong type for socket */
#define ENOPROTOOPT 92  /* Protocol not available */
#define EPROTONOSUPPORT 93  /* Protocol not supported */
#define ESOCKTNOSUPPORT 94  /* Socket type not supported */
#define EOPNOTSUPP  95  /* Operation not supported on transport endpoint */
#define EPFNOSUPPORT  96  /* Protocol family not supported */
#define EAFNOSUPPORT  97  /* Address family not supported by protocol */
#define EADDRINUSE  98  /* Address already in use */
#define EADDRNOTAVAIL 99  /* Cannot assign requested address */
#define ENETDOWN  100 /* Network is down */
#define ENETUNREACH 101 /* Network is unreachable */
#define ENETRESET 102 /* Network dropped connection because of reset */
#define ECONNABORTED  103 /* Software caused connection abort */
#define ECONNRESET  104 /* Connection reset by peer */
#define ENOBUFS   105 /* No buffer space available */
#define EISCONN   106 /* Transport endpoint is already connected */
#define ENOTCONN  107 /* Transport endpoint is not connected */
#define ESHUTDOWN 108 /* Cannot send after transport endpoint shutdown */
#define ETOOMANYREFS  109 /* Too many references: cannot splice */
#define ETIMEDOUT 110 /* Connection timed out */
#define ECONNREFUSED  111 /* Connection refused */
#define EHOSTDOWN 112 /* Host is down */
#define EHOSTUNREACH  113 /* No route to host */
#define EALREADY  114 /* Operation already in progress */
#define EINPROGRESS 115 /* Operation now in progress */
#define ESTALE    116 /* Stale NFS file handle */
#define EUCLEAN   117 /* Structure needs cleaning */
#define ENOTNAM   118 /* Not a XENIX named type file */
#define ENAVAIL   119 /* No XENIX semaphores available */
#define EISNAM    120 /* Is a named type file */
#define EREMOTEIO 121 /* Remote I/O error */
#define EDQUOT    122 /* Quota exceeded */

#define ENOMEDIUM 123 /* No medium found */
#define EMEDIUMTYPE 124 /* Wrong medium type */
#define ECANCELED 125 /* Operation Canceled */
#define ENOKEY    126 /* Required key not available */
#define EKEYEXPIRED 127 /* Key has expired */
#define EKEYREVOKED 128 /* Key has been revoked */
#define EKEYREJECTED  129 /* Key was rejected by service */

/* for robust mutexes */
#define EOWNERDEAD  130 /* Owner died */
#define ENOTRECOVERABLE 131 /* State not recoverable */

#define ERFKILL   132 /* Operation not possible due to RF-kill */

#define EHWPOISON 133 /* Memory page has hardware error */

#endif