RFR: JDK-8115868: 32-bit JVM failed to start from a large network filesystem

[Kumar Srinivasan]

On 12/16/2015 1:24 AM, Mikael Gerdin wrote:
> On 2015-12-16 09:24, Mikael Gerdin wrote:
>> Hi Kumar,
>>
>> On 2015-12-15 16:54, Kumar Srinivasan wrote:
>>> Hello,
>>>
>>> Please review fix for: JDK-8115868
>>>
>>> The webrev is here:
>>> http://cr.openjdk.java.net/~ksrini/8115868/webrev.0/
>>
>> Since I don't feel qualified to comment on the actual code changes I
>> don't consider this a code review but I looked at the diffs and they
>> make sense to me.
>>
>> I have however tested this fix and verified that it resolves the issues
>> in the launcher.
>
> And as for the changes required for the VM, would it be appropriate to 
> clone 8115868 and move it to hotspot/runtime instead of pushing the VM 
> fix under the same bug number?

Right, since this issue exists in HotSpot you should file a bug on Runtime,
linking this and the JDK bug, this issue will likely exist elsewhere in 
the JDK
code base as well.

Thanks

Kumar


>
> /Mikael
>
>>
>> /Mikael
>>
>>>
>>> The background:
>>> The launcher uses stat(2) to check for the existence of a file,
>>> unfortunately
>>> on 32-bit system with large file systems causes the inode storage to
>>> overflow
>>> causing the syscall to return EOVERFLOW.
>>>
>>> Solution:
>>> * stat(2)  replaced with access(3), in most cases.
>>> * jbs is marked noreg-hard hard to replicate the problem
>>>
>>> Thanks
>>> Kumar
>>>
>>>
>>>
>>>
>>>
>>
>