squid3 smp problem

[k simon]

  It’s worked when I create it manually.
  Thanks for your kindly guide.

Simon


On 2013年10月25日, at 下午10:22, Venkatesh Srinivas <me at endeavour.zapto.org> wrote:

> On Fri, Oct 25, 2013 at 5:59 AM, k simon <chio1990 at gmail.com> wrote:
>>    I adjust the squid configuration, now it report:
>> 
>>   “FATAL: Ipc::Mem::Segment::create failed to shm_open(/squid-squid-page-pool.shm): (13) Permission denied”
>> 
>>   Does anyone could give me some clue to workaroud it ?
>> 
>> 
>> Regards
>> Simon
> 
> squid's Ipc::Mem::Segment::create() uses shm_open to create a POSIX
> shared memory segment; on DragonFly, SHM segments are just files which
> live in the specified path. ('/squid-squid-page-pool.shm' in this
> case); your squid daemon's user likely does not have permission to use
> that file.
> 
> On some other platforms (Linux), shm segments appear as files also,
> but in a subtree of the namespace instead -- often /dev/shm. So your
> squid shm segment would be /dev/shm/squid-squid-page-pool.shm, in what
> is usually a tmpfs filesystem.
> 
> Some workarounds -- patch squid to create its shm file in /tmp/<...>
> or some other common path; or if the shm segment is opened w/o O_EXCL
> and you don't mind a file in /, create it manually and set permissions
> so squid can read/write it.
> 
> HTH,
> -- vs;