Xingxing Su 5868347a19 MIPS: Do not use smp_processor_id() in preemptible code ... Use preempt_disable() to fix the following bug under CONFIG_DEBUG_PREEMPT. [ 21.915305] BUG: using smp_processor_id() in preemptible [00000000] code: qemu-system-mip/1056 [ 21.923996] caller is do_ri+0x1d4/0x690 [ 21.927921] CPU: 0 PID: 1056 Comm: qemu-system-mip Not tainted 5.8.0-rc2 #3 [ 21.934913] Stack : 0000000000000001 ffffffff81370000 ffffffff8071cd60 a80f926d5ac95694 [ 21.942984] a80f926d5ac95694 0000000000000000 98000007f0043c88 ffffffff80f2fe40 [ 21.951054] 0000000000000000 0000000000000000 0000000000000001 0000000000000000 [ 21.959123] ffffffff802d60cc 98000007f0043dd8 ffffffff81f4b1e8 ffffffff81f60000 [ 21.967192] ffffffff81f60000 ffffffff80fe0000 ffff000000000000 0000000000000000 [ 21.975261] fffffffff500cce1 0000000000000001 0000000000000002 0000000000000000 [ 21.983331] ffffffff80fe1a40 0000000000000006 ffffffff8077f940 0000000000000000 [ 21.991401] ffffffff81460000 98000007f0040000 98000007f0043c80 000000fffba8cf20 [ 21.999471] ffffffff8071cd60 0000000000000000 0000000000000000 0000000000000000 [ 22.007541] 0000000000000000 0000000000000000 ffffffff80212ab4 a80f926d5ac95694 [ 22.015610] ... [ 22.018086] Call Trace: [ 22.020562] [<ffffffff80212ab4>] show_stack+0xa4/0x138 [ 22.025732] [<ffffffff8071cd60>] dump_stack+0xf0/0x150 [ 22.030903] [<ffffffff80c73f5c>] check_preemption_disabled+0xf4/0x100 [ 22.037375] [<ffffffff80213b84>] do_ri+0x1d4/0x690 [ 22.042198] [<ffffffff8020b828>] handle_ri_int+0x44/0x5c [ 24.359386] BUG: using smp_processor_id() in preemptible [00000000] code: qemu-system-mip/1072 [ 24.368204] caller is do_ri+0x1a8/0x690 [ 24.372169] CPU: 4 PID: 1072 Comm: qemu-system-mip Not tainted 5.8.0-rc2 #3 [ 24.379170] Stack : 0000000000000001 ffffffff81370000 ffffffff8071cd60 a80f926d5ac95694 [ 24.387246] a80f926d5ac95694 0000000000000000 98001007ef06bc88 ffffffff80f2fe40 [ 24.395318] 0000000000000000 0000000000000000 0000000000000001 0000000000000000 [ 24.403389] ffffffff802d60cc 98001007ef06bdd8 ffffffff81f4b818 ffffffff81f60000 [ 24.411461] ffffffff81f60000 ffffffff80fe0000 ffff000000000000 0000000000000000 [ 24.419533] fffffffff500cce1 0000000000000001 0000000000000002 0000000000000000 [ 24.427603] ffffffff80fe0000 0000000000000006 ffffffff8077f940 0000000000000020 [ 24.435673] ffffffff81460020 98001007ef068000 98001007ef06bc80 000000fffbbbb370 [ 24.443745] ffffffff8071cd60 0000000000000000 0000000000000000 0000000000000000 [ 24.451816] 0000000000000000 0000000000000000 ffffffff80212ab4 a80f926d5ac95694 [ 24.459887] ... [ 24.462367] Call Trace: [ 24.464846] [<ffffffff80212ab4>] show_stack+0xa4/0x138 [ 24.470029] [<ffffffff8071cd60>] dump_stack+0xf0/0x150 [ 24.475208] [<ffffffff80c73f5c>] check_preemption_disabled+0xf4/0x100 [ 24.481682] [<ffffffff80213b58>] do_ri+0x1a8/0x690 [ 24.486509] [<ffffffff8020b828>] handle_ri_int+0x44/0x5c Signed-off-by: Xingxing Su <suxingxing@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>		2020-07-05 11:43:52 +02:00
..
syscalls	vfs: add faccessat2 syscall	2020-05-14 16:44:25 +02:00
.gitignore	.gitignore: add SPDX License Identifier	2020-03-25 11:50:48 +01:00
asm-offsets.c	MIPS: Remove struct task_struct fpu state when CONFIG_MIPS_FP_SUPPORT=n	2018-11-09 10:23:19 -08:00
binfmt_elfn32.c	y2038: elfcore: Use __kernel_old_timeval for process times	2019-11-15 14:38:29 +01:00
binfmt_elfo32.c	y2038: elfcore: Use __kernel_old_timeval for process times	2019-11-15 14:38:29 +01:00
bmips_5xxx_init.S	MIPS: BCM5xxx: Remove dead init_fpu code	2018-11-08 11:20:57 -08:00
bmips_vec.S	MIPS: BMIPS: Add Whirlwind (BMIPS5200) initialization code	2016-05-09 12:00:01 +02:00
branch.c	MIPS: Use fallthrough for arch/mips	2020-05-07 11:55:47 +02:00
cacheinfo.c	mips: cacheinfo: report shared CPU map	2019-11-26 10:33:08 -08:00
cevt-bcm1480.c	MIPS: Replace setup_irq() by request_irq()	2020-03-05 16:47:35 +01:00
cevt-ds1287.c	MIPS: Replace setup_irq() by request_irq()	2020-03-05 16:47:35 +01:00
cevt-gt641xx.c	MIPS: Replace setup_irq() by request_irq()	2020-03-05 16:47:35 +01:00
cevt-r4k.c	mips: cevt-r4k: Update the r4k-clockevent frequency in sync with CPU	2020-05-22 09:14:32 +02:00
cevt-sb1250.c	MIPS: Replace setup_irq() by request_irq()	2020-03-05 16:47:35 +01:00
cevt-txx9.c	MIPS: Replace setup_irq() by request_irq()	2020-03-05 16:47:35 +01:00
cmpxchg.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
cps-vec-ns16550.S	mips: Add CPS_NS16550_WIDTH config	2020-05-22 09:12:52 +02:00
cps-vec.S	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
cpu-probe.c	KVM: MIPS: Enable KVM support for Loongson-3	2020-06-04 13:51:53 -04:00
crash_dump.c	mm: remove include/linux/bootmem.h	2018-10-31 08:54:16 -07:00
crash.c	mm: remove include/linux/bootmem.h	2018-10-31 08:54:16 -07:00
csrc-bcm1480.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
csrc-ioasic.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
csrc-r4k.c	mips: csrc-r4k: Mark R4K timer as unstable if CPU freq changes	2020-05-22 09:14:06 +02:00
csrc-sb1250.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
early_printk_8250.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1	2019-05-21 11:28:39 +02:00
early_printk.c	mips: unify prom_putchar() declarations	2018-07-17 09:40:17 -07:00
elf.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
entry.S	mips: Add MIPS Release 5 support	2020-05-22 09:09:01 +02:00
ftrace.c	MIPS: ftrace: Reword prepare_ftrace_return() comment block	2019-06-11 15:46:21 -07:00
genex.S	MIPS: Fix IRQ tracing when call handle_fpe() and handle_msa_fpe()	2020-05-27 13:11:49 +02:00
gpio_txx9.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
head.S	MIPS: Clear XContext at boot time	2020-04-24 18:37:23 +02:00
i8253.c	MIPS: Replace setup_irq() by request_irq()	2020-03-05 16:47:35 +01:00
idle.c	MIPS: Use fallthrough for arch/mips	2020-05-07 11:55:47 +02:00
irq_txx9.c
irq-gt641xx.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1	2019-05-21 11:28:39 +02:00
irq-msc01.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
irq-rm7000.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
irq.c	MIPS: irq: Allocate accurate order pages for irq stack	2019-02-19 12:45:01 -08:00
jump_label.c	MIPS: jump_label: Use compact branches for >= r6	2019-04-09 16:21:30 -07:00
kgdb.c	MIPS: KGDB: fix kgdb support for SMP platforms.	2019-03-28 11:35:58 -07:00
kprobes.c	mm, kprobes: generalize and rename notify_page_fault() as kprobe_page_fault()	2019-07-16 19:23:22 -07:00
linux32.c	MIPS: Delete unused code in linux32.c	2018-08-01 13:20:27 -07:00
machine_kexec.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 230	2019-06-19 17:09:06 +02:00
Makefile	MIPS: Remove not used 8250-platform.c	2020-05-17 10:25:26 +02:00
mcount.S	mips: ftrace: fix static function graph tracing	2018-06-19 15:00:12 -07:00
mips_machine.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
mips-cm.c	mips: cm: Add L2 ECC/parity errors reporting	2020-05-07 13:11:38 +02:00
mips-cpc.c	remove ioremap_nocache and devm_ioremap_nocache	2020-01-06 09:45:59 +01:00
mips-mt-fpaff.c	sched/core: Provide a pointer to the valid CPU mask	2019-06-03 11:49:37 +02:00
mips-mt.c	MIPS: MT: Remove norps command line parameter	2018-11-26 22:49:14 -08:00
mips-r2-to-r6-emul.c	MIPS: Use fallthrough for arch/mips	2020-05-07 11:55:47 +02:00
module.c	mm: don't include asm/pgtable.h if linux/mm.h is already included	2020-06-09 09:39:13 -07:00
octeon_switch.S	Kbuild: rename CC_STACKPROTECTOR[_STRONG] config variables	2018-06-14 12:21:18 +09:00
perf_event_mipsxx.c	MIPS: perf: Remove unnecessary "fallthrough" pseudo keywords	2020-05-02 13:21:09 +02:00
perf_event.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
pm-cps.c	MIPS: barrier: Add __SYNC() infrastructure	2019-10-07 09:42:17 -07:00
pm.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
probes-common.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
proc.c	mips: Add MIPS Release 5 support	2020-05-22 09:09:01 +02:00
process.c	mm: don't include asm/pgtable.h if linux/mm.h is already included	2020-06-09 09:39:13 -07:00
prom.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
ptrace32.c	mm: don't include asm/pgtable.h if linux/mm.h is already included	2020-06-09 09:39:13 -07:00
ptrace.c	mm: don't include asm/pgtable.h if linux/mm.h is already included	2020-06-09 09:39:13 -07:00
r4k_fpu.S	mips: Add MIPS Release 5 support	2020-05-22 09:09:01 +02:00
r4k_switch.S	Kbuild: rename CC_STACKPROTECTOR[_STRONG] config variables	2018-06-14 12:21:18 +09:00
r4k-bugs64.c	MIPS: r4k-bugs64: Drop CONFIG_CPU_MIPSR6 checks	2019-10-07 09:38:54 -07:00
r2300_fpu.S	MIPS: Simplify FP context initialization	2018-11-09 10:23:13 -08:00
r2300_switch.S	Kbuild: rename CC_STACKPROTECTOR[_STRONG] config variables	2018-06-14 12:21:18 +09:00
relocate_kernel.S	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 230	2019-06-19 17:09:06 +02:00
relocate.c	MIPS: Remove no-op/identity casts	2018-08-31 11:49:20 -07:00
reset.c	MIPS: Hang more efficiently on halt/powerdown/restart	2018-03-09 11:22:43 +00:00
rtlx-cmp.c	MIPS: APRP: Fix an issue when device_create() fails.	2014-08-01 17:30:35 +02:00
rtlx-mt.c	MIPS: Replace setup_irq() by request_irq()	2020-03-05 16:47:35 +01:00
rtlx.c	vfs: do bulk POLL* -> EPOLL* replacement	2018-02-11 14:34:03 -08:00
scall32-o32.S	mips: remove nargs from __SYSCALL	2019-07-30 10:50:30 -07:00
scall64-n32.S	mips: remove nargs from __SYSCALL	2019-07-30 10:50:30 -07:00
scall64-n64.S	mips: remove nargs from __SYSCALL	2019-07-30 10:50:30 -07:00
scall64-o32.S	MIPS: asm: Rename some macros to avoid build errors	2020-05-07 13:20:05 +02:00
segment.c	mips: kernel: no need to check return value of debugfs_create functions	2019-01-22 11:17:20 -08:00
setup.c	MIPS: Remove useless parameter of bootcmdline_init()	2020-05-19 17:36:04 +02:00
signal32.c	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
signal_n32.c	Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2019-07-08 21:48:15 -07:00
signal_o32.c	signal: Remove task parameter from force_sig	2019-05-27 09:36:28 -05:00
signal-common.h	MIPS: Save MSA extended context around signals	2015-09-03 12:07:59 +02:00
signal.c	MIPS: Replace zero-length array with flexible-array	2020-05-08 12:01:02 +02:00
smp-bmips.c	mm: don't include asm/pgtable.h if linux/mm.h is already included	2020-06-09 09:39:13 -07:00
smp-cmp.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 182	2019-05-30 11:29:20 -07:00
smp-cps.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
smp-mt.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 182	2019-05-30 11:29:20 -07:00
smp-up.c	MIPS: SMP: Allow boot_secondary SMP op to return errors	2017-08-30 00:57:27 +02:00
smp.c	MIPS updates for v5.7:	2020-03-31 08:51:45 -07:00
spinlock_test.c	mips: kernel: no need to check return value of debugfs_create functions	2019-01-22 11:17:20 -08:00
spram.c	mips: Add CONFIG/CONFIG6/Cause reg fields macro	2020-05-22 09:12:22 +02:00
stacktrace.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
sync-r4k.c	MIPS: sync-r4k: do slave counter synchronization with disabled HW interrupts	2020-01-22 10:16:18 -08:00
syscall.c	MIPS: syscall: Emit Loongson3 sync workarounds within asm	2019-10-07 09:43:05 -07:00
sysrq.c	MIPS: constify sysrq_key_op	2020-05-15 14:53:19 +02:00
time.c	mips: Add udelay lpj numbers adjustment	2020-05-22 09:13:32 +02:00
topology.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
traps.c	MIPS: Do not use smp_processor_id() in preemptible code	2020-07-05 11:43:52 +02:00
unaligned.c	MIPS: Fix build warning about "PTR_STR" redefinition	2020-05-30 10:58:30 +02:00
uprobes.c	MIPS: uprobes: remove set but not used variable 'epc'	2019-05-29 13:20:30 -07:00
vdso.c	mmap locking API: use coccinelle to convert mmap_sem rwsem call sites	2020-06-09 09:39:14 -07:00
vmlinux.lds.S	MIPS: Truncate link address into 32bit for 32bit kernel	2020-05-07 10:31:01 +02:00
vpe-cmp.c
vpe-mt.c
vpe.c	MIPS: VPE: Fix a double free and a memory leak in 'release_vpe()'	2020-02-15 12:44:03 -08:00
watch.c	MIPS: Use fallthrough for arch/mips	2020-05-07 11:55:47 +02:00