ssl3_write_pending causes apache 1.3 httpd to crash/coredump

["Sailesh Krishnamurthy" <sailesh.krish@xxxxxxxxx>]

Hi, We have a production apache 1.3 instance on solaris, where of late one of the httpd processes has been crashing and
producing core dumps. This looks to be a known issue with large SSL file downloads happening over apache 1.3.
However what I" want to know is how can I debug this production issue further. How can I find the application/cgi 
causing the crash or how can it be remediated (without having to upgrade apache). The stack traces are as below.
Your inputs are appreciated. thanks

coredump1:

(dbx) where                                                                  
=>[1] ssl3_write_pending(0x3b52c0, 0x17, 0xfb1f4000, 0x4000, 0x0, 0x73736c00), a
t 0xfb5f38fc 
  [2] ssl3_write_bytes(0x3b52c0, 0x17, 0xfb1f0000, 0x8000, 0x0, 0x6), at 0xfb5f3
480 
  [3] ssl_io_hook_write(0xcfb80, 0xfb1f0000, 0x8000, 0x0, 0x69746500, 0x69746500
), at 0xfb5bbed8 
  [4] ap_hook_call_func(0xffbff190, 0xcc390, 0xce690, 0x0, 0x74657874, 0x6367692
d), at 0x6cb98 
  [5] ap_hook_call(0xbf3d0, 0xffbff1a8, 0xcfb80, 0xfb1f0000, 0x8000, 0x0), at 0x
6bed8 
  [6] ap_write(0xcfb80, 0xfb1f0000, 0x8000, 0x3c74b6, 0xa, 0x2c7366), at 0x39884
 
  [7] buff_write(0xcfb80, 0xfb1f0000, 0x8000, 0xffbff2ec, 0x2, 0x2e295c), at 0x3
9918 
  [8] write_with_errors(0xcfb80, 0xfb1f0000, 0x8000, 0x7efefeff, 0x81010100, 0xf
f00), at 0x3af00 
  [9] bcwrite(0xcfb80, 0xfb1f0000, 0x8000, 0x61, 0xc00d0, 0x4), at 0x3b028 
  [10] ap_bwrite(0xcfb80, 0xfb1f0000, 0x8000, 0x0, 0x0, 0x6), at 0x3b5e0 
  [11] ap_send_mmap(0xfb1d0000, 0x164628, 0x0, 0x4622d, 0xe, 0x0), at 0x54644 
  [12] default_handler(0x164628, 0xa27e4, 0xffffffff, 0x0, 0x74657874, 0x6367692
d), at 0x4732c 
  [13] ap_invoke_handler(0x164628, 0xa5f10, 0x0, 0x0, 0x3f, 0x3f), at 0x3cd08 
  [14] process_request_internal(0x164628, 0xfb221e1c, 0xffbff5f4, 0xffbff634, 0x
4, 0x1), at 0x5846c 
  [15] ap_process_request(0x164628, 0x4, 0x164628, 0xffbff6b4, 0xffbff6c4, 0x2f)
, at 0x584f8 
  [16] child_main(0x2f, 0x4b260, 0x0, 0x0, 0x0, 0x0), at 0x4cdf8 
  [17] make_child(0xc3b28, 0x2f, 0x47c2bbcf, 0x0, 0xffbff844, 0x0), at 0x4d0f4 
  [18] perform_idle_server_maintenance(0xffffffff, 0x0, 0x0, 0xc3b28, 0xa41b4, 0
xbfe9c), at 0x4d5a8 
  [19] standalone_main(0x2, 0xffbff9cc, 0xba630, 0x2f, 0xffbffb09, 0x0), at 0x4d
c74 
  [20] main(0x2, 0xffbff9cc, 0xffbff9d8, 0xb7800, 0x0, 0x0), at 0x4e54c 

coredump2:
=>[1] ssl3_write_pending(0x36d168, 0x17, 0xffbf93bc, 0x2000, 0x0, 0xffbf93c1), at 0xfb5f38fc 
  [2] ssl3_write_bytes(0x36d168, 0x17, 0xffbf93bc, 0x2000, 0x73736c00, 0x73736c00), at 0xfb5f3428 
  [3] SSL_writev(0x36d168, 0xffbf922c, 0x3, 0x0, 0x0, 0x0), at 0xfb5bc1a4 
  [4] ssl_io_hook_writev(0xcfb80, 0xffbf922c, 0x3, 0x0, 0x0, 0x0), at 0xfb5bc040 
  [5] ap_hook_call_func(0xffbf9190, 0xcc3b8, 0xce6a0, 0xffbf9104, 0xffbf9134, 0xf), at 0x6cb98 
  [6] ap_hook_call(0xbf3e0, 0xffbf91ac, 0xcfb80, 0xffbf922c, 0x3, 0xffbf921e), at 0x6bed8 
  [7] writev_it_all(0xcfb80, 0xffbf922c, 0x3, 0x2000, 0x0, 0x40), at 0x3ad18 
  [8] large_write(0xcfb80, 0xffbf93bc, 0x2000, 0xfba3f2c0, 0xffbf9338, 0xffffffff), at 0x3b250 
  [9] ap_bwrite(0xcfb80, 0xffbf93bc, 0x2000, 0x0, 0x0, 0xffbf93c1), at 0x3b360 
  [10] ap_send_fb_length(0x390e00, 0x1b, 0x2000, 0x0, 0x2000, 0x2000), at 0x543e8 
  [11] ap_send_fb(0x390e00, 0x164628, 0xffbfb48c, 0x2, 0xffbff4c4, 0xffbff4c0), at 0x540bc 
  [12] cgi_handler(0x164628, 0x9e8ba, 0xffffffff, 0x0, 0x74, 0x74), at 0x2eb78 
  [13] ap_invoke_handler(0x164628, 0xa5f10, 0x0, 0x0, 0x25, 0x25), at 0x3cc64 
  [14] process_request_internal(0x164628, 0xfb2233e4, 0xffbff5f4, 0x0, 0x0, 0x0), at 0x5846c 
  [15] ap_process_request(0x164628, 0x4, 0x164628, 0xffbff6b4, 0xffbff6c4, 0x51), at 0x584f8 
  [16] child_main(0x51, 0x4b260, 0x0, 0x0, 0x0, 0x0), at 0x4cdf8 
  [17] make_child(0xc3b28, 0x51, 0x47c5ba2b, 0x0, 0xffbff844, 0x8), at 0x4d0f4 
  [18] perform_idle_server_maintenance(0xffffffff, 0x0, 0x0, 0xc3b28, 0xa41b4, 0xbfe9c), at 0x4d5a8 
  [19] standalone_main(0x2, 0xffbff9cc, 0xba630, 0x2f, 0xffbffb09, 0x0), at 0x4dc74 
  [20] main(0x2, 0xffbff9cc, 0xffbff9d8, 0xb7800, 0x0, 0x0), at 0x4e54c