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| author | Heiko Schocher <hs@denx.de> | 2010-11-22 21:30:33 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-12-09 15:35:31 +1100 |
| commit | 364a1246522f99cbe58040e99af007ada31034ed (patch) | |
| tree | 1b37c5a9dfbf6bd566c2476d7f2e781bcfbb495a /arch/powerpc | |
| parent | bee376ff4c1fc178031dad51ba38ff18a98a39c8 (diff) | |
| download | linux-3.10-364a1246522f99cbe58040e99af007ada31034ed.tar.gz linux-3.10-364a1246522f99cbe58040e99af007ada31034ed.tar.bz2 linux-3.10-364a1246522f99cbe58040e99af007ada31034ed.zip | |
powerpc/time: printk time stamp init not correct
problem:
I see sometimes on my mpc5200 based board such printk timing
information:
[ 0.000000] NR_IRQS:512 nr_irqs:512 16
[ 0.000000] MPC52xx PIC is up and running!
[ 0.000000] clocksource: timebase mult[79364d9] shift[22] registered
[ 0.000000] console [ttyPSC0] enabled
[ 130.300633] pid_max: default: 32768 minimum: 301
[ 130.305647] Mount-cache hash table entries: 512
[ 130.315818] NET: Registered protocol family 16
reason:
if the tbu not starts from 0 when linux boots, boot_tb
maybe could not store the real 64 bit tbu value, because
boot_tp is only a 32 bit unsigned long.
solution:
change boot_tb to u64
[BenH: Made it u64 instead of unsigned long long]
Signed-off-by: Heiko Schocher <hs@denx.de>
cc: Wolfgang Denk <wd@denx.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/time.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 010406958d9..09e4dea4a85 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -155,7 +155,7 @@ EXPORT_SYMBOL_GPL(rtc_lock); static u64 tb_to_ns_scale __read_mostly; static unsigned tb_to_ns_shift __read_mostly; -static unsigned long boot_tb __read_mostly; +static u64 boot_tb __read_mostly; extern struct timezone sys_tz; static long timezone_offset; |