> > Well, at the time of the sample, the other CPU indeed -seems- to be in > > an IRQ disabled section yes. > > This is not really a sample. The hardirqs enable/disable is actually tracked > using the TRACE_{EN,DIS}ABLE_INTS macros.
That's what I meant. IE. the hardirq state was updated by the stuck CPU but sampled by the non-stuck one. ie. the non-stuck one could have sampled a transcient value where it happened to have hard irq disabled... > For the decrementer, the interrupt code is generated by the > STD_EXCEPTION_COMMON_LITE() macro. Yeah, I know that :-) > Aha, none of the PPC interrupt handlers actually us TRACE_ENABLE_INTS (they do > use TRACE_DISABLE_INTS). So that's why it thinks decrementer_common disabled > interrupts, without enabling them again... Well, they aren't supposed to enable IRQs if they were disabled... Ben. > With kind regards, > > Geert Uytterhoeven > Software Architect > > Sony Techsoft Centre Europe > The Corporate Village · Da Vincilaan 7-D1 · B-1935 Zaventem · Belgium > > Phone: +32 (0)2 700 8453 > Fax: +32 (0)2 700 8622 > E-mail: [EMAIL PROTECTED] > Internet: http://www.sony-europe.com/ > > A division of Sony Europe (Belgium) N.V. > VAT BE 0413.825.160 · RPR Brussels > Fortis · BIC GEBABEBB · IBAN BE41293037680010 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev