Re: Lockup in 2.4.2 kernel ADSL PCI card ATM driver module
I apologize to all for my first post! To partly answer my own poorly documented problem:- First, once the code added for the debugger (int3) was removed from the driver, the driver worked fine with kernel version 2.4.2-ac28 (but still not with 2.4.2-2rh or 2.4.2). Second, with sincere apologies to all (some suffer from brain lapses more than others), I neglected to mention that the system hangs, in both 2.4.2-2rh and 2.4.2 kernels, when the driver performs: ... save_flags(flags); cli(); ... TimeRemain = interruptible_sleep_on_timeout(>WaitQue, WaitTime); restore_flags(flags); ... Again note that there were not any code changes to the driver, with the results that the driver worked for 2.4.0 and 2.4.2-ac28 but did not work for 2.4.2-2rh or 2.4.2. Does anyone know if there was a bug introduced between 2.4.0 and 2.4.2 in the interruptible sleep area that was fixed by 2.4.2-ac28? If not, then there might still be a timing related problem in our driver (or possibly the kernel). Thanks again, Dan Davidson [EMAIL PROTECTED] Conexant Systems, Inc. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Lockup in 2.4.2 kernel ADSL PCI card ATM driver module
I apologize to all for my first post! To partly answer my own poorly documented problem:- First, once the code added for the debugger (int3) was removed from the driver, the driver worked fine with kernel version 2.4.2-ac28 (but still not with 2.4.2-2rh or 2.4.2). Second, with sincere apologies to all (some suffer from brain lapses more than others), I neglected to mention that the system hangs, in both 2.4.2-2rh and 2.4.2 kernels, when the driver performs: ... save_flags(flags); cli(); ... TimeRemain = interruptible_sleep_on_timeout(pEvent-WaitQue, WaitTime); restore_flags(flags); ... Again note that there were not any code changes to the driver, with the results that the driver worked for 2.4.0 and 2.4.2-ac28 but did not work for 2.4.2-2rh or 2.4.2. Does anyone know if there was a bug introduced between 2.4.0 and 2.4.2 in the interruptible sleep area that was fixed by 2.4.2-ac28? If not, then there might still be a timing related problem in our driver (or possibly the kernel). Thanks again, Dan Davidson [EMAIL PROTECTED] Conexant Systems, Inc. - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Lockup in 2.4.2 kernel ADSL PCI card ATM driver module
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
[EMAIL PROTECTED]
Thanks much (in advance of any help),
Dan Davidson
[EMAIL PROTECTED]
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:
CPU: 0
EIP: 0010:[]
EFLAGS: 0282
eax: c8854780 ebx: ecx: c02873e8 edx: c100df74
esi: edi: ebp: c14e5f28 esp: c14e5f20
Process insmod (pid: 1401, stackpage-c14e5000)
Stack: c884d000 0060 c0114c35 c0349000 000860a0
c034a000
0060 ffea 0007 c6979fdc 0060 c8845000 c884d060
000ae220
Call Trace: [] [] [] []
[] []
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
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Lockup in 2.4.2 kernel ADSL PCI card ATM driver module
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
[EMAIL PROTECTED]
Thanks much (in advance of any help),
Dan Davidson
[EMAIL PROTECTED]
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:
CPU: 0
EIP: 0010:[c885478b]
EFLAGS: 0282
eax: c8854780 ebx: ecx: c02873e8 edx: c100df74
esi: edi: ebp: c14e5f28 esp: c14e5f20
Process insmod (pid: 1401, stackpage-c14e5000)
Stack: c884d000 0060 c0114c35 c0349000 000860a0
c034a000
0060 ffea 0007 c6979fdc 0060 c8845000 c884d060
000ae220
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
-
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
