Messages in this thread | | | From | dan.davidson@conexant ... | Subject | Lockup in 2.4.2 kernel ADSL PCI card ATM driver module | Date | Thu, 14 Jun 2001 11:37:50 -0500 |
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Kernel community,
Sorry for intrusion, but I could use some guidance and/or direction in tracking down the source of a problem. None of the messages I have seen in the archives quite seem to match this problem (if there is one please let me know). I am looking for where or how to dig (deeper) to find the source of the problem (described below). Please CC me with any responses at dan.davidson@conexant.com
Thanks much (in advance of any help), Dan Davidson dan.davidson@conexant.com Conexant Systems, Inc.
SUBJECT: Lockup in 2.4.2 kernel ADSL PCI card ATM driver module
DRIVER RESULTS: Works fine in 2.4.0 kernel. Locks up system (no messages/oops/etc.) in 2.4.2-2 kernel (rh 7.1). Locks up system (no messages/oops/etc.) in 2.4.2 kernel (w/ or w/o kgdb). Locks up system with "int 3" ??????? message in 2.4.2-ac28 kernel.
PROBLEM: We are developing reference design Linux drivers for our PCI ADSL reference design hardware. We have had drivers working (not crashing and able to transfer data) for kernel version 2.4.0. Yet the same source code for the driver, compiled with each kernel version, (and working fine for 2.4.0 kernel) causes system lockup on 2.4.2 kernel versions. The driver is a kernel module ATM driver for a Conexant PCI ADSL card.
SYSTEM: Dell Dimension XPS 300 Pentium II 300 MHz 128MB RAM Maxtor 31024H2 (ATA) HD CDROM (ATAPI) Iomega Zip100 (ATAPI) 1.44 FD 3COM PCI ethernet Conexant PCI ADSL
FILES: Several of the patch files, ".config" files, partial "System.map", and output of dmesg can be found at "http://home.hiwaay.net/~rss1/linux" and within the "2.4.0" and "2.4.2" subdirectories and the subdirectories of "2.4.2" ("2", "ac28", and "kgdb").
2.4.0 KERNEL: Start with Red Hat Linux 6.2 release. Upgrade to kernel 2.4.0 (lilo for both 2.2.14-5 and 2.4.0) applying patches "br2684-001212-against2.4.0.dif" and "atm-hdlc-patch" and using "config.gz" as ".config". Build kernel. Install rpm "modutils-2.4.0-1.i386.rpm". Install rpm "atm-0.78-1.i386.rpm". Install Conexant ADSL driver.
2.4.2-2 (rh) KERNEL: Start with Red Hat Linux 7.1 release. Apply patches "br2684-001212-against2.4.2.dif" and "atm-hdlc-patch". Configure kernel for: code maturity - experimental loadable module support - enable loadable and kernel module support networking options - enable ATM and classical IP over ATM and set to module enable LAN Emulation, multi-protocol over ATM, and RFC1483/2684 bridged protocols network device support - module enable PPP and PPPoATM Build kernel. Install rpm "atm-0.78-1.i386.rpm". Install Conexant ADSL driver.
2.4.2-kgdb KERNEL: Start with Red Hat Linux 7.1 release. Add kernel 2.4.2 (lilo for both 2.4.2-2 and 2.4.2-kgdb) Apply patch "linux-2.4.2-kgdb.patch". Apply patches "br2684-001212-against2.4.2.dif" and "atm-hdlc-patch". Configure kernel for: code maturity - experimental loadable module support - enable loadable and kernel module support networking options - enable ATM and classical IP over ATM and set to module enable LAN Emulation, multi-protocol over ATM, and RFC1483/2684 bridged protocols network device support - module enable PPP and PPPoATM Build kernel. Previously installed rpm "atm-0.78-1.i386.rpm". Install Conexant ADSL driver.
2.4.2-ac28 KERNEL: Start with Red Hat Linux 7.1 release. Add kernel 2.4.2 (lilo for both 2.4.2-2, 2.4.2-kgdb, and 2.4.2-ac28) Apply patch "patch-2.4.2-ac28". Apply patches "br2684-001212-against2.4.2.dif" and "atm-hdlc-patch". Configure kernel for: code maturity - experimental loadable module support - enable loadable and kernel module support networking options - enable ATM and classical IP over ATM and set to module enable LAN Emulation, multi-protocol over ATM, and RFC1483/2684 bridged protocols network device support - module enable PPP and PPPoATM Build kernel. Previously installed rpm "atm-0.78-1.i386.rpm". Install Conexant ADSL driver.
MESSAGE GENERATED IN 2.4.2-ac28: int 3: 0000 CPU: 0 EIP: 0010:[<c885478b>] EFLAGS: 00000282 eax: c8854780 ebx: 00000000 ecx: c02873e8 edx: c100df74 esi: 00000000 edi: 00000000 ebp: c14e5f28 esp: c14e5f20 Process insmod (pid: 1401, stackpage-c14e5000) Stack: c884d000 00000000 00000060 c0114c35 00000000 c0349000 000860a0 c034a000 00000060 ffffffea 00000007 c6979fdc 00000060 c8845000 c884d060 000ae220 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Call Trace: [<c884d000>] [<c0114c35>] [<c8845000>] [<c884d060>] [<c0106ffb>] [<c 010002b>]
Code: 83 ec 0c 68 d0 17 8b c8 e8 e8 f6 8b f7 c7 04 24 00 18 8b c8 make[1]: *** [start] Segmentation fault
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