If you were to run that test again with "streams -d0x03" the trace might help sort out what is going on.
-- Dave


At 10:59 AM 10/10/2003 Friday, David Lehmann wrote:
David Grothe wrote:
At 10:05 AM 10/10/2003 Friday, David Grothe wrote:
You can compile your driver against 2.16.13 headers and then run it under 2.16.*14*.

I tried 2.16.14 with the same results. See messages below.


BTW, I placed the check for the NULL q_ptr.  However, that check does
not seem to work any more.

--

David Lehmann                          Ulticom, Inc.
AOL/Yahoo IM: davidULCM                1020 Briggs Road
1-856-787-2729                         Mt. Laurel, NJ 08054   USA

Oct 10 11:43:48 iceman kernel: DEBUG ulcm: m2pa_driver.c 94: entered m2pa_open
Oct 10 11:43:48 iceman kernel: DEBUG ulcm: m2pa_data.c 151: Created link instance
Oct 10 11:43:48 iceman kernel: DEBUG ulcm: m2pa_driver.c 124: left m2pa_open
Oct 10 11:43:48 iceman kernel: DEBUG ulcm: m2pa_driver.c 150: entered m2pa_close
Oct 10 11:43:48 iceman kernel: DEBUG ulcm: m2pa_driver.c 158: before m2pa_link_free
Oct 10 11:43:48 iceman kernel: DEBUG ulcm: m2pa_driver.c 162: left m2pa_close
Oct 10 11:43:48 iceman kernel: DEBUG ulcm: m2pa_driver.c 150: entered m2pa_close
Oct 10 11:43:48 iceman kernel: DEBUG ulcm: m2pa_driver.c 158: before m2pa_link_free
Oct 10 11:43:48 iceman kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000770
Oct 10 11:43:48 iceman kernel: printing eip:
Oct 10 11:43:48 iceman kernel: d8931364
Oct 10 11:43:48 iceman kernel: *pde = 00000000
Oct 10 11:43:48 iceman kernel: Oops: 0000
Oct 10 11:43:48 iceman kernel: streams agpgart parport_pc lp parport nfs lockd sunrpc autofs e100 microcode keybdev mousedev hid input usb-uhci usbcore ext3 jbd
Oct 10 11:43:48 iceman kernel: CPU: 0
Oct 10 11:43:48 iceman kernel: EIP: 0060:[<d8931364>] Tainted: P Oct 10 11:43:48 iceman kernel: EFLAGS: 00010017
Oct 10 11:43:48 iceman kernel: Oct 10 11:43:48 iceman kernel: EIP is at m2pa_link_free [streams] 0x34 (2.4.20-8smp)



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