ssl_callback_SSLVerify re-negotiation handshake crash

Hello,

We are running 2.8.25-1.3.34 with openssl 0.9.7g. When using
client authentication we have crashes in ssl_callback_SSLVerify
relasted calls. Please see backtrace below.

The last entires in the log before the child httpd starts crashing is:

Awaiting re-negotiation handshake

Have anyone seen problems like this before and have a solution ?
If not, we'll go ahead and add more logging and do more debugging of
the problem.

Love


(gdb) bt
#0  CRYPTO_get_ex_data (ad=0xe8, idx=137019688) at ex_data.c:628
#1  0x4035c035 in SSL_get_ex_data (s=0x1, idx=296) at ssl_lib.c:2220
#2  0x4031cf08 in ssl_callback_SSLVerify (ok=1, ctx=0xbfffed20)
     at ssl_engine_kernel.c:1507
#3  0x404125ec in internal_verify (ctx=0x87f55e0) at x509_vfy.c:880
#4  0x40411e66 in X509_verify_cert (ctx=0xbfffed20) at x509_vfy.c:306
#5  0x00000002 in ?? ()
(gdb) print *ssl
Cannot access memory at address 0x0
(gdb) print *ctx
$19 = {
   ctx = 0x82aa680,
   current_method = 0,
   cert = 0x87f9740,
   untrusted = 0x881e2e8,
   purpose = 1,
   trust = 2,
   check_time = 0,
   flags = 0,
   other_ctx = 0x0,
   verify = 0x40412440 <internal_verify>,
   verify_cb = 0x4031cecd <ssl_callback_SSLVerify>,
   get_issuer = 0x40416750 <X509_STORE_CTX_get1_issuer>,
   check_issued = 0x40413200 <check_issued>,
   check_revocation = 0x40413270 <check_revocation>,
   get_crl = 0x40413410 <get_crl>,
   check_crl = 0x40413460 <check_crl>,
   cert_crl = 0x40413700 <cert_crl>,
   cleanup = 0,
   depth = 9,
   valid = 0,
   last_untrusted = 2,
   chain = 0x87f55e0,
   error_depth = 2,
   error = 0,
   current_cert = 0x82ac028,
   current_issuer = 0x82ac028,
   current_crl = 0x0,
   ex_data = {
     sk = 0x881bd10,
     dummy = 142729960
   }