[hunchentoot-devel] Intermittent proble while uploading a file

[Edi Weitz]

On Fri, 6 Apr 2007 09:25:52 -0400, "Andrei Stebakov" <lispercat at gmail.com> wrote:

> Since I switched to latest SBCL sometimes I got following error:
>
> Internal Server Error
>
> The value NIL is not of type STRING.
>
> 0: (BACKTRACE 536870911 #<SB-IMPL::STRING-OUTPUT-STREAM {CD0F3C9}>)
> 1: (HUNCHENTOOT:GET-BACKTRACE #<unavailable argument>)
> 2: ((LAMBDA (COND)) #<TYPE-ERROR {CD0F2A9}>)
> 3: ((LAMBDA (COND)) #<TYPE-ERROR {CD0F2A9}>)
> 4: (SIGNAL #<TYPE-ERROR {CD0F2A9}>)
> 5: (ERROR TYPE-ERROR)
> 6: (SB-KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER
>     #<unavailable argument>
>     #.(SB-SYS:INT-SAP #XB505254C)
>     #<SB-ALIEN-INTERNALS:ALIEN-VALUE :SAP #XB505223C :TYPE (*
>                                                             (STRUCT
>
> SB-VM::OS-CONTEXT-T-STRUCT))>
>     (142 14))
> 7: (SB-KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER
>     #<unavailable argument>
>     #.(SB-SYS:INT-SAP #XB505254C)
>     #<SB-ALIEN-INTERNALS:ALIEN-VALUE :SAP #XB505223C :TYPE (*
>                                                             (STRUCT
>
> SB-VM::OS-CONTEXT-T-STRUCT))>
>     (142 14))
> 8: (SB-KERNEL:INTERNAL-ERROR
>     #.(SB-SYS:INT-SAP #XB505223C)
>     #<unavailable argument>)
> 9: ("foreign function: call_into_lisp")
> 10: ("foreign function: funcall2")
> 11: ("foreign function: interrupt_internal_error")
> 12: ("foreign function: sigtrap_handler")
> 13: (MAKE-STRING-INPUT-STREAM NIL 0)
> 14: (NIL NIL)
> 15: (CP-API::UPLOAD-FILE
>      "10f14f8c-016c-479a-9709-ce62b2027149"
>      #P"/tmp/upload/6E5824411F6BBA0248441CFCDF13D765-text.png"
>      "Customers")
> 16: (CP-API::SESSION-GENERATE-DESIGN)
> 17: (CP-API::CP-PRODUCT)
> 18: (HUNCHENTOOT::PROCESS-REQUEST
>      ((:HOST . "127.0.0.1:3001")
>       (:ACCEPT
>        . "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg,
> application/x-shockwave-flash, */*")
>       (:ACCEPT-ENCODING . "gzip, deflate") (:ACCEPT-LANGUAGE . "en-us")
>       (:COOKIE . "sessionid=52%3A6E5824411F6BBA0248441CFCDF13D765")
>       (:UA-CPU . "x86")
>       (:USER-AGENT
>        . "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR
> 1.0.3705; .NET CLR 1.1.4322; .NET CLR 2.0.50727; Media Center PC
> 4.0)")
>       (:X-FORWARDED-FOR . "192.168.1.1")
>       (:X-FORWARDED-HOST . "www.greenpixeldesign.com")
>       (:X-FORWARDED-SERVER . "www.greenpixeldesign.com")
>       (:CONNECTION . "close"))
>      #<FLEXI-STREAMS::FLEXI-LATIN-1-IO-STREAM {CBCADE9}>
>      :GET
>      "/cphandler/product.html"
>      :HTTP/1.1)
> 19: (HUNCHENTOOT::PROCESS-CONNECTION
>      #<HUNCHENTOOT::SERVER {A96A0C9}>
>      #<SB-BSD-SOCKETS:INET-SOCKET descriptor 14 {CBC2559}>)
> 20: ((LAMBDA ()))
> 21: ("foreign function: call_into_lisp")
> 22: ("foreign function: funcall0")
> 23: ("foreign function: new_thread_trampoline")
> 24: ("foreign function: #xB7FD5B63")

Between stack frame 15 (CP-API::UPLOAD-FILE) and the top of the stack
I don't see any Hunchentoot function involved which could have caused
the error.  (MAKE-STRING-INPUT-STREAM NIL 0) is certainly wrong,
though.

Regarding the "(NIL NIL)" stack frame see the SBCL mailing list a
weeks back.  You should probably employ *CATCH-ERRORS-P* to diagnose
the problem.