问题描述（Issue Deion）在启动redis-shake之后crash, 报panic: runtime err

检查了一下，感觉我写的没有错误。你给的引用文档可能较老，没有 64 byte 的数值类型，参考 Redis 的代码： <div class="highlight h

panic: runtime error: makeslice: len out of range when parsing RDB file about redisshake HOT 2 CLOSED

yangtingting-ola commented on June 2, 2024

panic: runtime error: makeslice: len out of range when parsing RDB file

from redisshake.

Comments (2)

suxb201 commented on June 2, 2024

检查了一下，感觉我写的没有错误。你给的引用文档可能较老，没有 64 byte 的数值类型，参考 Redis 的代码：

int rdbLoadLenByRef(rio *rdb, int *isencoded, uint64_t *lenptr) {
    unsigned char buf[2];
    int type;

    if (isencoded) *isencoded = 0;
    if (rioRead(rdb,buf,1) == 0) return -1;
    type = (buf[0]&0xC0)>>6;
    if (type == RDB_ENCVAL) {
        /* Read a 6 bit encoding type. */
        if (isencoded) *isencoded = 1;
        *lenptr = buf[0]&0x3F;
    } else if (type == RDB_6BITLEN) {
        /* Read a 6 bit len. */
        *lenptr = buf[0]&0x3F;
    } else if (type == RDB_14BITLEN) {
        /* Read a 14 bit len. */
        if (rioRead(rdb,buf+1,1) == 0) return -1;
        *lenptr = ((buf[0]&0x3F)<<8)|buf[1];
    } else if (buf[0] == RDB_32BITLEN) {
        /* Read a 32 bit len. */
        uint32_t len;
        if (rioRead(rdb,&len,4) == 0) return -1;
        *lenptr = ntohl(len);
    } else if (buf[0] == RDB_64BITLEN) {
        /* Read a 64 bit len. */
        uint64_t len;
        if (rioRead(rdb,&len,8) == 0) return -1;
        *lenptr = ntohu64(len);
    } else {
        rdbReportCorruptRDB(
            "Unknown length encoding %d in rdbLoadLen()",type);
        return -1; /* Never reached. */
    }
    return 0;
}