Please forget the previus post: it was a defective DIMM. Booting with 12GB is OK and using another 2GB couple has fixed the issue. I'm sorry for the false alarm. Simone Mannori - ITALY On 14 April 2016 at 10:46, Simone Mannori <simone.mannori@xxxxxxxxx> wrote: > Dear All, > > after upgrading the RAM to 16GB (8 x 2GB modules), the kernel hangs > just after the "nouveau" module loading. > With X1 ATI video card, the "radeon" driver has the very same behaviour. > Booting without ANY video card is OK and the c8000 works perfectly > (this exlude any memory realted issues like memory > errors/defective/unmatched DIMM) > > With "nouveau" the serial console dump is: > > [ OK ] Reached target Graphical Interface. > [ 73.932000] nuveau 0000:80:00.0: DRM: 0xABCE: Parsing digital > output script table > Starting Update UTMP about Syste[ 74.104000] nouveau > 0000:80:00.0: DRM: 0xABCE: Parsing digital output script table > m Runlevel Changes... > [ OK ] Started Update UTMP about System Runlevel Changes. > [ 95.616000] INFO: rcu_sched detected stalls on CPUs/tasks: > [ 95.680000] (detected by 1, t=5272 jiffies, g=2108, c=2107, q=121) > [ 95.756000] All QSes seen, last rcu_sched kthread activity 5284 > (4294916235-4294910951), jiffies_till_next_fqs=1, root ->qsmask 0x0 > [ 95.896000] dpkg R running task 0 941 938 0x00000014 > [ 95.984000] Backtrace: > [ 96.012000] [<0000000040215bc0>] show_stack+0x20/0x38 > [ 96.072000] [<00000000402756e4>] sched_show_task+0x134/0x1d0 > [ 96.140000] [<00000000402adc04>] rcu_check_callbacks+0x9bc/0x9c8 > [ 96.216000] [<00000000402b2494>] update_process_times+0x74/0xd8 > [ 96.288000] [<0000000040216edc>] timer_interrupt+0x1bc/0x220 > [ 96.356000] [<000000004029d714>] handle_irq_event_percpu+0xb4/0x250 > [ 96.432000] [<00000000402a3028>] handle_percpu_irq+0xa8/0xe8 > [ 96.500000] [<000000004029c99c>] generic_handle_irq+0x4c/0x68 > [ 96.568000] [<0000000040205308>] call_on_stack+0x18/0x24 > [ 96.636000] > [ 96.652000] rcu_sched kthread starved for 5508 jiffies! g2108 c2107 > f0x2 s3 ->state=0x100 > [ 96.752000] timer_interrupt(CPU 1): delayed! cycles 4370CCA7 rem > 82659 next/now 5AA779EC42/5AA771C5E9 > > Simone Mannori - ITALY -- To unsubscribe from this list: send the line "unsubscribe linux-parisc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
