On Wed, Mar 26, 2008 at 10:20:35AM -0600, Grant Grundler wrote:
> Another gcc problem report:
>
> That past weekend I built the latest parisc-2.6-25-rc6 kernel from
> Kyle's tree using gcc-4.1, gcc-4.2, and gcc-4.3. All three kernels
> booted but the networking only worked for gcc-4.1 kernel.
Followup: gcc-42 is working too now and I'm not sure why.
I upgraded gcc-4.3 package from 4.3.0-rcX to 4.3.1 AND all of it's
dependencies as well.
I looked at gcc-43 build output to check warnings related to networking
as suggest by John David Anglin.
I ignored the couple of warnings in drivers/net/wireless/.
CC [M] drivers/net/fealnx.o
drivers/net/fealnx.c:896:2: warning: #warning Processor architecture undefined!
No clue what this driver is for. Ignored.
CC [M] drivers/net/lasi_82596.o
drivers/net/lasi_82596.c: In function ‘lan_init_chip’:
drivers/net/lasi_82596.c:164: warning: format ‘%lx’ expects type ‘long unsigned int’, but argument 3 has type ‘resource_size_t’
drivers/net/lasi_82596.c:169: warning: format ‘%lx’ expects type ‘long unsigned int’, but argument 2 has type ‘resource_size_t’
That's just printk format strings.
overshot and found this one in drivers/scsi/ interesting too:
drivers/scsi/initio.c:2585: warning: large integer implicitly truncated to unsigned type
matching code is:
cblk->senselen = cpu_to_le32(SENSE_SIZE);
grundler@j6k:~/parisc-2.6-gcc43$ fgrep senselen drivers/scsi/*.h
drivers/scsi/aha1740.h: u8 senselen; /* Sense Length */
drivers/scsi/initio.h: u8 senselen; /*31 Sense Allocation Length */
drivers/scsi/megaraid.h: u8 reqsenselen;
The code at first glance looks wrong here. Patch submitted to linux-scsi
and Alan Cox (who appears to have taken on this driver last year).
Nothing else in the drivers/net.
A bit more in net/ though:
CC net/sunrpc/svc.o
net/sunrpc/svc.c: In function ‘__svc_create_thread’:
net/sunrpc/svc.c:587: warning: ‘oldmask.bits[0u]’ may be used uninitialized in this function
Don't care since I'm not using rpc.
This is probably a false positive anyway. I've found several.
And that was it. So no warnings that seem to be related to this networking problem. It was worth checking though.
> I just realized it's possible the 100BT switch is dropping the packets.
> I'll try to capture a tcpdump from the omnibook 500 side using a
> crossover cable tonight or tomorrow since without that, I don't see
> how this can be debugged.
Still need to try the cross-over cable.
grant
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