/dev/urandom and image dumping

[hemml]

I'm using postmodern which uses ironclad to make authentication.
The problem is when I'm saving lisp image with save-lisp-and-die, the first attempt to reconnect to the database produces the following error:

Database error: #<SB-SYS:FD-STREAM for "file /dev/urandom" {1001CF02F3}> was closed by SB-EXT:SAVE-LISP-AND-DIE
   [Condition of type CL-POSTGRES:DATABASE-SOCKET-ERROR]
Restarts: 
  0: [RECONNECT] Try again.
  1: [RETRY] Retry SLIME REPL evaluation request.
  2: [*ABORT] Return to SLIME's top level.
  3: [ABORT] abort thread (#<THREAD "repl-thread" RUNNING {1005968433}>)
Stack Trace: 
  0: ((FLET CL-POSTGRES::ADD-RESTART :IN CL-POSTGRES::INITIATE-CONNECTION) #<SB-INT:CLOSED-SAVED-STREAM-ERROR {1008A5D1D3}>)
  1: (CL-POSTGRES::INITIATE-CONNECTION #<CL-POSTGRES:DATABASE-CONNECTION {1008A5C013}> 0)
  2: (CL-POSTGRES:OPEN-DATABASE "dbmail" "dbmail_admin" "" "mail-database" 5432 :NO "postgres" "" NIL)
  3: (POSTMODERN:CONNECT-TOPLEVEL "dbmail" "dbmail_admin" "" "mail-database" :PORT 5432 :USE-SSL NIL :APPLICATION-NAME "" :USE-BINARY NIL)
  4: (SB-INT:SIMPLE-EVAL-IN-LEXENV (POSTMODERN:CONNECT-TOPLEVEL "dbmail" "dbmail_admin" "" "mail-database") #<NULL-LEXENV>)
  5: (EVAL (POSTMODERN:CONNECT-TOPLEVEL "dbmail" "dbmail_admin" "" "mail-database"))
  6: (SWANK::EVAL-REGION "(postmodern:connect-toplevel \"dbmail\" \"dbmail_admin\" \"\" \"mail-database\")")
  7: ((LAMBDA NIL :IN SWANK-REPL::REPL-EVAL))
  8: (SWANK-REPL::TRACK-PACKAGE #<FUNCTION (LAMBDA NIL :IN SWANK-REPL::REPL-EVAL) {1008A5BDAB}>)
  9: (SWANK::CALL-WITH-RETRY-RESTART "Retry SLIME REPL evaluation request." #<FUNCTION (LAMBDA NIL :IN SWANK-REPL::REPL-EVAL) {1008A5BD4B}>)
  10: (SWANK::CALL-WITH-BUFFER-SYNTAX NIL #<FUNCTION (LAMBDA NIL :IN SWANK-REPL::REPL-EVAL) {1008A5BD2B}>)
  11: (SWANK-REPL::REPL-EVAL "(postmodern:connect-toplevel \"dbmail\" \"dbmail_admin\" \"\" \"mail-database\")")
  12: (SB-INT:SIMPLE-EVAL-IN-LEXENV (SWANK-REPL:LISTENER-EVAL "(postmodern:connect-toplevel \"dbmail\" \"dbmail_admin\" \"\" \"mail-database\")") #<NULL-LEXENV>)
  13: (EVAL (SWANK-REPL:LISTENER-EVAL "(postmodern:connect-toplevel \"dbmail\" \"dbmail_admin\" \"\" \"mail-database\")"))
  14: (SWANK:EVAL-FOR-EMACS (SWANK-REPL:LISTENER-EVAL "(postmodern:connect-toplevel \"dbmail\" \"dbmail_admin\" \"\" \"mail-database\")") "CL-USER" 9912)
  15: (SWANK::PROCESS-REQUESTS NIL)
  16: ((LAMBDA NIL :IN SWANK::HANDLE-REQUESTS))
  17: ((LAMBDA NIL :IN SWANK::HANDLE-REQUESTS))
  18: (SWANK/SBCL::CALL-WITH-BREAK-HOOK #<FUNCTION SWANK:SWANK-DEBUGGER-HOOK> #<FUNCTION (LAMBDA NIL :IN SWANK::HANDLE-REQUESTS) {100597802B}>)
  19: ((FLET SWANK/BACKEND:CALL-WITH-DEBUGGER-HOOK :IN "/home/omg/quicklisp/dists/quicklisp/software/slime-v2.27/swank/sbcl.lisp") #<FUNCTION SWANK:SWANK-DEBUGGER-HOOK> #<FUNCTION (LAMBDA NIL :IN SWANK::HAN..
  20: (SWANK::CALL-WITH-BINDINGS ((*STANDARD-INPUT* . #<SWANK/GRAY::SLIME-INPUT-STREAM {10060F6883}>)) #<FUNCTION (LAMBDA NIL :IN SWANK::HANDLE-REQUESTS) {100597804B}>)
  21: (SWANK::HANDLE-REQUESTS #<SWANK::MULTITHREADED-CONNECTION {1005D57D03}> NIL)
  22: ((FLET SB-UNIX::BODY :IN SB-THREAD::RUN))
  23: ((FLET "WITHOUT-INTERRUPTS-BODY-11" :IN SB-THREAD::RUN))
  24: ((FLET SB-UNIX::BODY :IN SB-THREAD::RUN))
  25: ((FLET "WITHOUT-INTERRUPTS-BODY-4" :IN SB-THREAD::RUN))
  26: (SB-THREAD::RUN)
  27: ("foreign function: call_into_lisp")
  28: ("foreign function: funcall1")

I found a workaround: (setf ironclad::*os-prng-stream* nil) before first connection attempt fixes the problem.

[luismbo]

Seems like a duplicate of #45.