Bug 1494
| Summary: | machine locks up while accessing NIC | ||
|---|---|---|---|
| Product: | Platform Specific/Hardware | Reporter: | Christian Kujau (kernel) |
| Component: | PPC-32 | Assignee: | Tom Rini (trini) |
| Status: | CLOSED CODE_FIX | ||
| Severity: | normal | CC: | bzkernel, paulus |
| Priority: | P2 | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Kernel Version: | 2.5.72...2.6-current | Subsystem: | |
| Regression: | --- | Bisected commit-id: | |
| Attachments: |
i posted the bug to lkml some time ago, but nobody cared :-(
changing 3 lines in arch/ppc/platforms/prep_pci.c does solve the issue. |
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Description
Christian Kujau
2003-11-05 12:26:28 UTC
Created attachment 1365 [details]
i posted the bug to lkml some time ago, but nobody cared :-(
Try alt+sysrq+t ... if that doesn't work, try nmi_watchdog. Google for info on how to use them ;-) Just to bring this bug entry up to date: 2.6.1 and 2.6.2-rc1 all show the same problem, loading of tulip.ko or de4x5.ko works fine, but when you try to configure the interface with ifconfig, the box freezes hard, even sysrq does _not_ work. And since the kdbg is a little bit out of order, I am not really able to provide any more input. Hopefully the patch from http://stop.crashing.org:16080/~trini/ for kdbg will shed some light onto the problem, if I am able to resolve the conflicts. i've checked again with a recent 2.6-BK kernel and the issue is still unresolved: the PReP i have does not have any harddisk any more, so nfsroot will the way to go here. but this the very problem: networking is not working since > 2.5.30 on PReP and i am only able to get netconsole running, sometimes a ping will get through to the machine. as stated earlier, the PReP has an on-board NIC, de4x5 or tulip did fine with 2.4 kernels. i can boot off the (openfirmware?)bootprompt, the kernel gets loaded, then i can try different drivers for the NIC: http://nerdbynature.de/bits/sheep/2.6.10-rc2/3c59x-boot.log http://nerdbynature.de/bits/sheep/2.6.10-rc2/8139too-boot.log -> more to come: http://nerdbynature.de/bits/sheep/2.6.10-rc2/ then the nfsroot is supposed to be mounted, the logs says "mount: server 192.168.10.10 not responding" but 192.168.10.10 *would* respond, but it does not even receive and requests (tcpdump teld me...) and i am not able to ping the machine. the only time i was able to ping the machine was with the 8139too driver, but reply-time went from 130ms to 32202ms... i've compile the kernels with gcc-3.4.2 and binutils-2.15 in a i386-crosscompile environment. if anybody cares, tell me if other information is needed / new patches are available to address this issue. thanks, Christian. oh, just to fullfill an old request from martin (yeah, i'm really late): > Try alt+sysrq+t ... if that doesn't work, try nmi_watchdog. > Google for info on how to use them ;-) http://nerdbynature.de/bits/sheep/2.6.10-rc2/3c59x-sysrq+t.log thanks, Christian. Created attachment 4235 [details] changing 3 lines in arch/ppc/platforms/prep_pci.c does solve the issue. Sebastian Heutling gave me the following hint: > It turned out that the pci slot numbering has changed > sometime and this wasn't reflected in arch/ppc/platforms/prep_pci.c. > After having set up the slot0...slot8 using the values of > slot10...slot18 (except for slot1 which got value 4 so IDE is usable out > of the box), the machine booted a 2.6 kernel (2.6.8). i only had to create an appropriate patch (attached) and now everything works. it's been a long time since 2.5.30.... now the patch has to reach mainline somehow to close this bug. (hint, hint!) thanks to all involved, Christian. Linus has applied this patch, closing. |