Guenter Roeck 7c6a4f3b16 powerpc/mm: Call flush_tlb_kernel_range with interrupts enabled ... flush_tlb_kernel_range() may call smp_call_function_many() which expects interrupts to be enabled. This results in a traceback. WARNING: CPU: 0 PID: 1 at kernel/smp.c:416 smp_call_function_many+0xcc/0x2fc CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.14.0-rc1-00009-g0666f56 #1 task: cf830000 task.stack: cf82e000 NIP: c00a93c8 LR: c00a9634 CTR: 00000001 REGS: cf82fde0 TRAP: 0700 Not tainted (4.14.0-rc1-00009-g0666f56) MSR: 00021000 <CE,ME> CR: 24000082 XER: 00000000 GPR00: c00a9634 cf82fe90 cf830000 c050ad3c c0015a54 00000000 00000001 00000001 GPR08: 00000001 00000000 00000000 cf82e000 24000084 00000000 c0003150 00000000 GPR16: 00000000 00000000 00000000 00000000 00000000 00000001 00000000 c0510000 GPR24: 00000000 c0015a54 00000000 c050ad3c c051823c c050ad3c 00000025 00000000 NIP [c00a93c8] smp_call_function_many+0xcc/0x2fc LR [c00a9634] smp_call_function+0x3c/0x50 Call Trace: [cf82fe90] [00000010] 0x10 (unreliable) [cf82fed0] [c00a9634] smp_call_function+0x3c/0x50 [cf82fee0] [c0015d2c] flush_tlb_kernel_range+0x20/0x38 [cf82fef0] [c001524c] mark_initmem_nx+0x154/0x16c [cf82ff20] [c001484c] free_initmem+0x20/0x4c [cf82ff30] [c000316c] kernel_init+0x1c/0x108 [cf82ff40] [c000f3a8] ret_from_kernel_thread+0x5c/0x64 Instruction dump: 7c0803a6 7d808120 38210040 4e800020 3d20c052 812981a0 2f890000 40beffac 3d20c051 8929ac64 2f890000 40beff9c <0fe00000> 4bffff94 7fc3f378 7f64db78 Fixes: 3184cc4b6f ("powerpc/mm: Fix kernel RAM protection after freeing ...") Fixes: e611939fc8 ("powerpc/mm: Ensure change_page_attr() doesn't ...") Cc: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>		2017-10-04 22:15:30 +11:00
..
boot	powerpc: conditionally compile platform-specific serial drivers	2017-08-31 14:26:48 +10:00
configs	powerpc/configs: Update for CONFIG_SND changes	2017-09-20 13:30:09 +10:00
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2017-05-02 15:53:46 -07:00
include	Merge branch 'akpm' (patches from Andrew)	2017-09-09 10:30:07 -07:00
kernel	powerpc/4xx: Fix compile error with 64K pages on 40x, 44x	2017-10-03 21:59:48 +11:00
kvm	kvm,powerpc: Serialize wq active checks in ops->vcpu_kick	2017-09-15 16:57:13 +02:00
lib	powerpc/sstep: mullw should calculate a 64 bit signed result	2017-09-20 13:30:09 +10:00
math-emu	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
mm	powerpc/mm: Call flush_tlb_kernel_range with interrupts enabled	2017-10-04 22:15:30 +11:00
net	powerpc updates for 4.14	2017-09-07 10:15:40 -07:00
oprofile	ktime: Cleanup ktime_set() usage	2016-12-25 17:21:22 +01:00
perf	powerpc/sysrq: Fix oops whem ppmu is not registered	2017-09-20 13:30:09 +10:00
platforms	powerpc/pseries: Fix parent_dn reference leak in add_dt_node()	2017-09-21 19:33:16 +10:00
purgatory	powerpc/asm: Convert .llong directives to .8byte	2017-08-31 14:26:47 +10:00
sysdev	powerpc/xive: Clear XIVE internal structures when a CPU is removed	2017-10-04 22:01:57 +11:00
tools	powerpc/64: Tool to check head sections location sanity	2017-05-30 14:59:51 +10:00
xmon	powerpc/xmon: Add ISA v3.0 SPRs to SPR dump	2017-08-31 14:26:45 +10:00
Kconfig	powerpc updates for 4.14	2017-09-07 10:15:40 -07:00
Kconfig.debug	powerpc/xmon: Enable disassembly files (compilation changes)	2017-02-15 20:02:42 +11:00
Makefile	Merge branch 'fixes' into next	2017-08-23 22:20:10 +10:00
Makefile.postlink	powerpc/64: Tool to check head sections location sanity	2017-05-30 14:59:51 +10:00