On Sep 13, 2009, at 10:53 AM, Patrick May wrote:

I just got the following problem. I don't know if it's related to Clozure or to Hunchentoot (64-bit Linux): Welcome to Clozure Common Lisp Version 1.3-r12755M (LinuxX8664)! ? STRING-OUTPUT-STREAM #x300041AC43AD> is not of the expected tyexception in foreign context Exception occurred while executing foreign code at create_exception_callback_frame + 80 ? for help [5067] Clozure CL kernel debugger: ? (G) Set specified GPR to new value (R) Show raw GPR/SPR register values (L) Show Lisp values of tagged registers (F) Show FPU registers (S) Find and describe symbol matching specified name (B) Show backtrace (T) Show info about current thread (X) Exit from this debugger, asserting that any exception was handled (K) Kill Clozure CL process (?) Show this help [5067] Clozure CL kernel debugger: b current thread: tcr = 0x7fd6b38177b0, native thread ID = 0x1e96, interrupts disabled

[5067] Clozure CL kernel debugger: t Current Thread Context Record (tcr) = 0x7fd6b38177b0 Control (C) stack area: low = 0x7fd6b35c4000, high = 0x7fd6b3818000 Value (lisp) stack area: low = 0x7fd6b33a2000, high = 0x7fd6b35b3000 Exception stack pointer = 0x7fd6b35c3788 [5067] Clozure CL kernel debugger: k

Any idea what could be causing this? Is anyone here running a website with Clozure and Hunchentoot?

I finally managed to get a backtrace on this problem. I've reduced the deployment down to the latest Clozure running on 64-bit Linux with Hunchentoot 1.0.0 hosting only static files. These files are generated from Dreamweaver, so I put them in a directory named 'static' and configure Hunchentoot like this:

(push (hunchentoot:create-folder-dispatcher-and-handler "/" (make-pathname :directory (concatenate 'string *web-path* "/static"))) hunchentoot:*dispatch-table*)

;; (register-static-file "crossdomain.xml")

(defun display-home-page () "Display the home page." (hunchentoot:redirect "/index.html"))

(push (hunchentoot:create-regex-dispatcher "^/$" 'display-home-page) hunchentoot:*dispatch-table*)

I start the server like this:

(defparameter hunchentoot:*message-log-pathname* "/tmp/hunchentoot-message.log") (defparameter hunchentoot:*access-log-pathname* "/tmp/hunchentoot-access.log")

(defparameter *web-acceptor* (make-instance 'hunchentoot:acceptor :port 8080))

(hunchentoot:start *web-acceptor*)

This works for a random amount of time, then I get errors like this in the Hunchentoot message log:

[2009-09-13 15:35:16 [ERROR]] Error while processing connection: Input timeout o n #<BASIC-TCP-STREAM ISO-8859-1 (SOCKET/13) #x300041C5834D> [2009-09-13 15:35:16 [ERROR]] Error while processing connection: Input timeout o n #<BASIC-TCP-STREAM ISO-8859-1 (SOCKET/6) #x300041C5E9AD> [2009-09-13 15:35:16 [ERROR]] Error while processing connection: Input timeout o n #<BASIC-TCP-STREAM ISO-8859-1 (SOCKET/14) #x300041C599AD>

And this in the output log (I'm running via detachtty, if that makes a difference):

Welcome to Clozure Common Lisp Version 1.3-r12755M (LinuxX8664)! ? STRING-OUTPUT-STREAM #x300041A9E7CD> is not of the expected type STRUCTURE.#<STRING-OUTPUT-STREAM #x300041A9E7CD> is not of the expected type ST RUCTURE.Error: is not of the expected type STRUCTURE.

Error: value #<STRING-OUTPUT-STREAM #x30004197E41D> is not of the

expected ty pe STRUCTURE.

While executing: CCL::CREATE-STRING-OUTPUT-STREAM-IOBLOCK Error: value #<STRING-OUTPUT-STREAM #x30004197E41D> is not of the

expected ty pe STRUCTURE.

While executing: CCL::CREATE-STRING-OUTPUT-STREAM-IOBLOCK Error: value #<STRING-OUTPUT-STREAM #x30004197E41D> is not of the

expected ty pe STRUCTURE.

While executing: CCL::CREATE-STRING-OUTPUT-STREAM-IOBLOCK, in

process Hunchent oot worker (client: 67.86.101.207:62566)(28). , in process Hunchentoot worker (client: 67.86.101.207:62564)(26). , in process Hunchentoot listener (*:8080)(3).

Error: value #<STRING-OUTPUT-STREAM #x30004197E41D> is not of the

expected type STRUCTURE.

While executing: CCL::CREATE-STRING-OUTPUT-STREAM-IOBLOCK, in

process Hunchentoot worker (client: 67.86.101.207:62567)(29).

;;; ;;; #<PROCESS Hunchentoot listener (*:8080)(3) [Reset] #x30004193F0FD> requires access to Shared Terminal Input ;;; Type (:y 3) to yield control to this thread. ;;;

When I connect with attachtty and yield control to thread 3, I get this:

(:y 3)

;;; ;;; Shared Terminal Input is now owned by #<PROCESS Hunchentoot listener (*:8080 )(3) [Reset] #x30004193F0FD> ;;;

Type :POP to abort, :R for a list of available restarts. Type :? for other options.

1 > :r

Type (:C <n>) to invoke one of the following restarts:

0. Return to break level 1. 1. #<RESTART ABORT-BREAK #x7FC397FF6BDD> 2. Reset this thread 3. Kill this thread 1 > :b *(7FC398197CC0) : 0 (CREATE-STRING-OUTPUT-STREAM-IOBLOCK :STREAM #<STRING-OUTPUT -STREAM :CLOSED #x300042D1C64D> :STRING "" :ELEMENT-TYPE CHARACTER :WRITE-CHAR- FUNCTION CCL::STRING-OUTPUT-STREAM-IOBLOCK-WRITE-CHAR :WRITE-CHAR-WHEN- LOCKED-FU NCTION CCL::STRING-OUTPUT-STREAM-IOBLOCK-WRITE-CHAR :WRITE-SIMPLE- STRING-FUNCTIO N CCL::STRING-OUTPUT-STREAM-IOBLOCK-WRITE-SIMPLE-STRING :FORCE-OUTPUT- FUNCTION # <Compiled-function FALSE #x300040018DCF> :CLOSE-FUNCTION #<Compiled- function CCL ::%CLOSE-STRING-OUTPUT-STREAM #x3000403672CF>) 236 (7FC398197D50) : 1 (%%MAKE-STRING-OUTPUT-STREAM #<BUILT-IN-CLASS STRING-OUTPUT- STREAM> "" CCL::STRING-OUTPUT-STREAM-IOBLOCK-WRITE-CHAR CCL::STRING- OUTPUT-STREA M-IOBLOCK-WRITE-SIMPLE-STRING) 269

. . .

(7FC39824ADA8) : 7733 (FUNCALL #'#<#<STANDARD-METHOD HUNCHENTOOT:HANDLE-INCOMIN G-CONNECTION (HUNCHENTOOT:ONE-THREAD-PER-CONNECTION-TASKMASTER T)>> #<HUNCHENTOO T:ONE-THREAD-PER-CONNECTION-TASKMASTER #x30004194057D> #USOCKET:STREAM-USOCKET #x3000420BB88D) 181 (7FC39824ADD0) : 7734 (FUNCALL #'#<#<STANDARD-METHOD HUNCHENTOOT:ACCEPT-CONNECT IONS (HUNCHENTOOT:ACCEPTOR)>> #<ACCEPTOR (host *, port 8080)>) 1061 (7FC39824AE70) : 7735 (FUNCALL #'#<(:INTERNAL BORDEAUX- THREADS::BINDING-DEFAULT -SPECIALS)>) 805 (7FC39824AEB8) : 7736 (RUN-PROCESS-INITIAL-FORM #<PROCESS Hunchentoot listener (*:8080)(3) [Reset] #x30004193F0FD> (#<COMPILED-LEXICAL-CLOSURE # #x30004193F06F

)) 717

(7FC39824AF48) : 7737 (FUNCALL #'#<(:INTERNAL CCL::%PROCESS-PRESET- INTERNAL)> # <PROCESS Hunchentoot listener (*:8080)(3) [Reset] #x30004193F0FD> (#<COMPILED-LE XICAL-CLOSURE # #x30004193F06F>)) 389 (7FC39824AF98) : 7738 (FUNCALL #'#<(:INTERNAL CCL::THREAD-MAKE- STARTUP-FUNCTION )>) 301 1 >

The full backtrace is available at http://www.softwarematters.org/ccl64-dribble.gz .

Is this a Clozure or Hunchentoot issue?

Thanks,

Patrick