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The following patch from the PowerPC fixes 5.1-3 is responsible for the VLC issue.Code: Select all
diff --git a/arch/powerpc/include/asm/vdso_datapage.h b/arch/powerpc/include/asm/vdso_datapage.h
index 1afe90ade595..bbc06bd72b1f 100644
--- a/arch/powerpc/include/asm/vdso_datapage.h
+++ b/arch/powerpc/include/asm/vdso_datapage.h
@@ -82,10 +82,10 @@ struct vdso_data {
__u32 icache_block_size; /* L1 i-cache block size */
__u32 dcache_log_block_size; /* L1 d-cache log block size */
__u32 icache_log_block_size; /* L1 i-cache log block size */
- __s32 wtom_clock_sec; /* Wall to monotonic clock */
- __s32 wtom_clock_nsec;
- struct timespec stamp_xtime; /* xtime as at tb_orig_stamp */
- __u32 stamp_sec_fraction; /* fractional seconds of stamp_xtime */
+ __u32 stamp_sec_fraction; /* fractional seconds of stamp_xtime */
+ __s32 wtom_clock_nsec; /* Wall to monotonic clock nsec */
+ __s64 wtom_clock_sec; /* Wall to monotonic clock sec */
+ struct timespec stamp_xtime; /* xtime as at tb_orig_stamp */
__u32 syscall_map_64[SYSCALL_MAP_SIZE]; /* map of syscalls */
__u32 syscall_map_32[SYSCALL_MAP_SIZE]; /* map of syscalls */
};
Code: Select all
diff -rupN a/arch/powerpc/include/asm/vdso_datapage.h b/arch/powerpc/include/asm/vdso_datapage.h
--- a/arch/powerpc/include/asm/vdso_datapage.h 2019-04-03 22:56:44.560645936 +0200
+++ b/arch/powerpc/include/asm/vdso_datapage.h 2019-04-04 02:20:09.479361827 +0200
@@ -82,10 +82,10 @@ struct vdso_data {
__u32 icache_block_size; /* L1 i-cache block size */
__u32 dcache_log_block_size; /* L1 d-cache log block size */
__u32 icache_log_block_size; /* L1 i-cache log block size */
- __u32 stamp_sec_fraction; /* fractional seconds of stamp_xtime */
- __s32 wtom_clock_nsec; /* Wall to monotonic clock nsec */
- __s64 wtom_clock_sec; /* Wall to monotonic clock sec */
- struct timespec stamp_xtime; /* xtime as at tb_orig_stamp */
+ __s32 wtom_clock_sec; /* Wall to monotonic clock */
+ __s32 wtom_clock_nsec;
+ struct timespec stamp_xtime; /* xtime as at tb_orig_stamp */
+ __u32 stamp_sec_fraction; /* fractional seconds of stamp_xtime */
__u32 syscall_map_64[SYSCALL_MAP_SIZE]; /* map of syscalls */
__u32 syscall_map_32[SYSCALL_MAP_SIZE]; /* map of syscalls */
};
Christophe wrote: That change is part of the following commit:
https://git.kernel.org/pub/scm/linux/ke ... da32ecb60c
Just changing back the type of wtom_clock_sec to 32 bits without changing back the loading instruction is likely to give unexpected results on PPC64.
Are you using 32 bits or 64 bits powerpc ?
Can you please try below change:
Code: Select all
diff --git a/arch/powerpc/kernel/vdso32/gettimeofday.S b/arch/powerpc/kernel/vdso32/gettimeofday.S
index 1e0bc5955a40..afd516b572f8 100644
--- a/arch/powerpc/kernel/vdso32/gettimeofday.S
+++ b/arch/powerpc/kernel/vdso32/gettimeofday.S
@@ -98,7 +98,7 @@ V_FUNCTION_BEGIN(__kernel_clock_gettime)
* can be used, r7 contains NSEC_PER_SEC.
*/
- lwz r5,WTOM_CLOCK_SEC(r9)
+ lwz r5,(WTOM_CLOCK_SEC+LOPART)(r9)
lwz r6,WTOM_CLOCK_NSEC(r9)
/* We now have our offset in r5,r6. We create a fake dependency
