I scanned five pages with simple-scan. No problem with the first four, but during the fifth page scanning, system crashed. No more keyboard, mouse, and so on. I had to brutally poweroff with the poweroff button. Below is the end of the syslog file after crash occured : Jan 9 14:21:09 localhost kernel: [ 1345.260006] INFO: rcu_sched detected stall on CPU 0 (t=6000 jiffies) Jan 9 14:21:09 localhost kernel: [ 1345.260007] Pid: 15510, comm: kworker/0:0 Tainted: G C 3.3.6-server-2.mga2 #1 Jan 9 14:21:09 localhost kernel: [ 1345.260007] Call Trace: Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<c04cab87>] ? printk+0x1d/0x1f Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<c01bcd59>] __rcu_pending+0x189/0x370 Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<c0171ab8>] ? account_process_tick+0x58/0x200 Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<c01bd340>] rcu_check_callbacks+0xa0/0x160 Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<c01533bb>] update_process_times+0x3b/0x70 Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<c0194a7e>] tick_sched_timer+0x5e/0xc0 Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<c0166390>] ? __remove_hrtimer+0x40/0xa0 Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<c01668dc>] __run_hrtimer+0x6c/0x1b0 Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<c0194a20>] ? tick_nohz_handler+0x100/0x100 Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<c0167535>] hrtimer_interrupt+0xe5/0x260 Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<c012e024>] smp_apic_timer_interrupt+0x54/0x90 Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<c04d26e5>] apic_timer_interrupt+0x31/0x38 Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<c015007b>] ? ptrace_request+0x44b/0x690 Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<f53254cb>] ? datai_run+0x6b/0x530 [aha152x_cs] Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<c015c5ea>] ? queue_delayed_work_on+0xea/0x100 Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<c015c61b>] ? schedule_delayed_work_on+0x1b/0x20 Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<f5322b79>] run+0x229/0x5e0 [aha152x_cs] Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<c015dd1f>] process_one_work+0xff/0x3a0 Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<c015b940>] ? do_work_for_cpu+0x20/0x20 Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<f5322950>] ? msgi_run+0x5f0/0x5f0 [aha152x_cs] Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<c015e94a>] worker_thread+0x12a/0x2e0 Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<c015e820>] ? manage_workers.isra.26+0x1f0/0x1f0 Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<c01627f2>] kthread+0x72/0x80 Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<c0162780>] ? kthread_freezable_should_stop+0x60/0x60 Jan 9 14:21:09 localhost kernel: [ 1345.260007] [<c04d923e>] kernel_thread_helper+0x6/0x10
CC: (none) => denis.prost
same with a more updated kernel like 3.3.8 or 3.4.24 ?
I just updated to 3.3.8. I'll let you know if it happens again (since it's a random problem, I cannot immediately reproduce it).
I scanned twelve pages without problem. That does not make sure that the problem is resolved, but it is probable, so I close it and will reopen if it happens again.
Status: NEW => RESOLVEDResolution: (none) => FIXED