Benjamin Herrenschmidt wrote:
On Sat, 2013-03-02 at 15:40 +0100, Phileas Fogg wrote:
recently i got a PowerMac G5 and installed Debian Linux 2.6.32 on it.
Everything works so far and Debian boots properly.
Today i tried to boot Linux 3 on the machine and it doesn't boot.
The Linux 3 kernel was cross-compiled by me.
On Linux 3.8.1 it hangs after this line:
---
windfarm: Drive bay control loop started.
And then i'm getting RCU stall call traces.
On Linux 3.2 it hangs too but not at the same place.
It hangs after some SCSI message.
Have anyone tested Linux 3 kernels on PowerMac G5 recently ?
Hrm, this is odd. I do run pretty much every release on my G5's without
problems... Can you send me your .config and then try with a
g5_defconfig just to see if it makes a difference ?
There *might* have been a problem on those older machines vs. the 64T
address space patches, so maybe try back 3.6 and 3.7 and let me know,
I'm still trying to get the right fix in (I know it breaks PS/3 under
some circumstances).
Cheers,
Ben.
Reverted 64TB commit on Linux 3.8.1 and it didn't help, it still hangs.
Here is the RCU stall call trace:
BUG - soft lockup - CPU#1 stuck for 23s
Call trace:
padzero
load_elf_binary
search_binary_handler
load_script
search_binary_handler
do_execve_common
sys_execve
syscall_exit
Exception at kernel_execve
LR = run_init_process
regards
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