Hi! On Mon, 10 Sep 2012, Frederic Weisbecker wrote: > > AFAICT, schedule_preempt_disabled() was only introduced in 3.4 > > and thus needs to be backported for 3.3. > > Please try with this instead: > > preempt_enable_no_resched(); > schedule(); > preempt_disable(); > > Thanks. While it does compile, it hits the usual Alpha snag (3.3 onwards) on boot: PCI host bridge to bus 0000:00 pci_bus 0000:00: root bus resource [io 0x0000-0xffff] pci_bus 0000:00: root bus resource [mem 0x00000000-0xffffffffffffffff] pci 0000:00:11.0: quirk: [io 0x4000-0x403f] claimed by ali7101 ACPI pci 0000:00:11.0: quirk: [io 0x5000-0x501f] claimed by ali7101 SMB Unable to handle kernel paging request at virtual address 0000000000000000 swapper(1): Oops 1 pc = [<fffffc00008667bc>] ra = [<fffffc0000866794>] ps = 0000 Not tainted pc is at nautilus_init_pci+0xd4/0x218 ra is at nautilus_init_pci+0xac/0x218 v0 = 0000000000000001 t0 = 0000000000000000 t1 = 000000000000ffff t2 = 00000000ffffffff t3 = fffffc0000896810 t4 = 0000000001000000 t5 = 0000000000080000 t6 = 000000000fffffff t7 = fffffc00bf890000 s0 = fffffc00bf8b4800 s1 = 0000000000ffffff s2 = 000000000007fffa s3 = 0000000000000000 s4 = 0000000000000000 s5 = 0000000000002ab5 s6 = 5800000000000701 a0 = fffffc0000896b88 a1 = 0000000000000000 a2 = 0000000000000000 a3 = 000000000e000000 a4 = 0000000002000000 a5 = 0000000000000001 t8 = 0000000000000000 t9 = 0000000000000000 t10= 0000000000000001 t11= 0000000000000000 pv = fffffc000032bdc0 at = 000000000d0e4600 gp = fffffc00008e34a8 sp = fffffc00bf893e28 Disabling lock debugging due to kernel taint Trace: [<fffffc0000310088>] do_one_initcall+0x38/0x200 [<fffffc0000311338>] kernel_thread+0x28/0x90 This is not an RCU problem, though. AFAICT. I tried the patches with 3.2.28 (the latest vanilla kernel that works on this machine _at all_) but those don't have an RCU implementation and thus, the compile fails: CC arch/alpha/kernel/process.o arch/alpha/kernel/process.c: In function 'cpu_idle': arch/alpha/kernel/process.c:59: error: implicit declaration of function 'rcu_idle_enter' arch/alpha/kernel/process.c:63: error: implicit declaration of function 'rcu_idle_exit' make[1]: *** [arch/alpha/kernel/process.o] Error 1 make: *** [arch/alpha/kernel] Error 2 Regards, Tobias -- To unsubscribe from this list: send the line "unsubscribe linux-alpha" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
