>On Fri, 14 Mar 2014 21:22:35 +0100 >Richard Z <r...@linux-m68k.org> wrote:
> I have meanwhile got a few more of those crashes, mine happen always > in offline mode. It was trigered by logrotate because polipo was > accidentally put into offline mode for logrotation I have been looking at the code in client.c, I think I see the problem. Let's start with httpClientNoticeRequest(). It gets passed the request (whatever that is), it parses it and gets (1) the handle for the object contained within and (2) some sort of a reference to a "connection". It then fills the object from disk (using objectFillFromDisk()) and calls httpServeObject() with the above connection. httpServeObject() then proceeds to extract the request from the connection, extracts the object from the request, fills it up from disk for the second time and then proceeds to deallocate it, allocate a new object that it "attaches" to the request and proceeds to call httpClientNoticeRequest() with that request. So, a bit of memory gets allocated, filled with data twice and then deallocated all the while the stack keeps on growing. This hypothesis is testable. If it won't inconvenience you too much (and you still have at least one coredump around), can you please test the following values: A. from the httpClientNoticeRequest() stack: 1. request 2. request->connection B. from the httpServeObject() stack: 1. connection 2. connection->request If ((A1 == B2) && (B1 == A2)), then we have successfully isolated the infinite loop for at least one of the two crashes. If that truly *is* the loop, then it is obvious the problem is in the defective data structure. We would then need to study the data structures and see where, why and how do they get deformed. -- Svi moji e-mailovi su kriptografski potpisani. Proverite ih. All of my e-mails are cryptographically signed. Verify them. -- You don't need an AI for a robot uprising. Humans will do just fine.
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