Messages in this thread | | | Subject | Re: tickle nmi watchdog whilst doing serial writes. | From | Andi Kleen <> | Date | Sun, 15 May 2005 13:38:02 +0200 |
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Dave Jones <davej@redhat.com> writes: > > #include <asm/io.h> > #include <asm/irq.h> > @@ -2099,8 +2100,10 @@ static inline void wait_for_xmitr(struct > if (up->port.flags & UPF_CONS_FLOW) { > tmout = 1000000; > while (--tmout && > - ((serial_in(up, UART_MSR) & UART_MSR_CTS) == 0)) > + ((serial_in(up, UART_MSR) & UART_MSR_CTS) == 0)) { > udelay(1); > + touch_nmi_watchdog();
Note that touch_nmi_watchdog is not exported on i386 - Linus vetoed that some time ago. The real fix of course is to use schedule_timeout(), but that might break printk() with interrupts off :/
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