Re: Can't get polipo to create a disk cache on OpenWrt (r41777)

Steve,

Sorry, coding is a bit beyond me, and I couldn't comment on the code block
with any authority!

However, I /am/ building polipo myself using a standard OpenWrt build
environment running on Ubuntu.

I /have not/ made any changes to the compiler optimizations, just selecting
targets & packages, and a few optimizations for busybox (trading size for
speed), example:
  CONFIG_TARGET_ar71xx_generic_UBNTRSPRO=y
  CONFIG_BUSYBOX_CONFIG_MD5_SMALL
  CONFIG_PACKAGE_luci-ssl=y

Then:
  make -j 3

I guess I could test with the current RC for Barrier Breaker, or the
current release of Attitude Adjustment, in which case I would be using
their pre-compiled polipo package (I dont know if AA uses v1.1.1, though).

(I am including your response in my email because I CC'd you directly
rather than via the list)



On 28 July 2014 15:55, Steve D <[email protected]> wrote:

> 0 means success, which is just downright weird! The relevant polipo code
> is:
>
> static int
> checkRoot(AtomPtr root)
> {
>     struct stat ss;
>     int rc;
>
>     if(!root || root->length == 0)
>         return 0;
>
>     if(root->string[0] != '/') {
>         return -2;
>     }
>
>     rc = stat(root->string, &ss);
>     if(rc < 0)
>         return -1;
>     else if(!S_ISDIR(ss.st_mode)) {
>         errno = ENOTDIR;
>         return -1;
>     }
>     return 1;
> }
>
> My only guess here is either (a) compiler optimization bug, or (b) stack
> corruption. I did wonder if the kernel and userspace are disagreeing about
> the
> size of struct stat, but even then rc should be initialized after any
> writes to
> ss. Did you build polipo for OpenWRT yourself, or are you using a packaged
> version??
>
> Steve
>
> <<SNIP>>
>
>
>

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