合约变量写入异常 #882
Description
System information
Geth version: geth version
OS & Version: OSX
Commit hash : 0x557aae04475cfd47c1107b3a504490f438bc829f66d439ce913ba8be43c9ce33
Expected behaviour
合约地址：0x6a627aa43836ce66a4ee8767bfc432e1f9a94af6
合约 里同样的 算法
当最后一步设置为保存计算结果时，交易会出现很高评率的失败，并且失败的执行在 estimateGas 调用中并不会报错
经过上百笔的 生产测试后
我们明确 该问题仅出现在 合约 修改变量时执行报错
出现异常的接口
function upDateNet() public lock {
uint time = block.timestamp;
uint256 _min = minerPool.mining(time);
uint256 _newEarn = _min - beforeEarnTokenBalance;
(,,_newEarn) = minerRate(_newEarn);
if ( _newEarn > 0 ) {
uint _deRewards = (EPX_RATE - shareNetRateEPX_RATE) * _newEarn / EPX_RATE;
_newEarn -= _deRewards;
if ( totalDeposits > 0 ) {
uint mulD = EPX * _deRewards;
uint divD = mulD / totalDeposits;
// 这里 对 depositsNetEPX1 变量累加操作
// depositsNetEPX1 += divD;
_addDepositiNet(divD);
}
if ( totalShare > 0 ) {
_addShareNet(EPX * _newEarn / totalShare);
}
beforeEarnTokenBalance = _min;
}
}不会报错的接口
event UpDate(uint min, uint balance, uint time);
function upDateNet1() public returns(uint _depositsNetEPX1, uint _shareNet1) {
uint time = block.timestamp;
uint256 _min = minerPool.mining(time);
emit UpDate(_min, beforeEarnTokenBalance, time);
uint256 _newEarn = _min - beforeEarnTokenBalance;
(,,_newEarn) = minerRate(_newEarn);
if ( _newEarn > 0 ) {
uint _deRewards = (EPX_RATE - shareNetRateEPX_RATE) * _newEarn / EPX_RATE;
_newEarn -= _deRewards;
if ( totalDeposits > 0 ) {
_depositsNetEPX1 += EPX * _deRewards / totalDeposits;
}
if ( totalShare > 0 ) {
_shareNet1 += EPX * _newEarn / totalShare;
}
}
}两个接口的却别仅只是 对 变量 depositsNetEPX1 是否写入
该问题按一定概率出现 需要多次连续调用
这个问题再多个合约中都出现过，但概率很低，只有这个合约，在升级后合约后高频率出现该问题