Date: Tue, 25 Dec 2012 16:00:01 GMT From: Andriy Gapon <avg@FreeBSD.org> To: freebsd-amd64@FreeBSD.org Subject: Re: amd64/174409: stopping during resume caused by io_apic.c change(r243764) Message-ID: <201212251600.qBPG01aV090424@freefall.freebsd.org>
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The following reply was made to PR amd64/174409; it has been noted by GNATS. From: Andriy Gapon <avg@FreeBSD.org> To: KAHO Toshikazu <kaho@elam.kais.kyoto-u.ac.jp> Cc: bug-followup@FreeBSD.org Subject: Re: amd64/174409: stopping during resume caused by io_apic.c change(r243764) Date: Tue, 25 Dec 2012 17:54:09 +0200 on 25/12/2012 15:38 KAHO Toshikazu said the following: > Hello, > >> Could you please take 'vmstat -i' output twice between reboot and >> resume (a few minutes apart) and then twice after resume (also a few >> minutes apart) ? > > "irq 9" does not seem to increase. > ( vmstat -i && sleep 300 && vmstat -i ) shows Thank you. Could you please re-apply r243764 and then try the following _hack_? --- a/sys/x86/x86/io_apic.c +++ b/sys/x86/x86/io_apic.c @@ -493,7 +493,7 @@ ioapic_resume(struct pic *pic) mtx_lock_spin(&icu_lock); for (i = 0; i < io->io_numintr; i++) - ioapic_program_intpin(&io->io_pins[i]); + if (i != 9) ioapic_program_intpin(&io->io_pins[i]); mtx_unlock_spin(&icu_lock); } Also, not sure if I asked before the following questions related to debugging possibilities. Does this system have a serial port? Are you able to setup serial console access? Or the same for firewire port/console. Does this system preserve memory content across reboot/reset? In other words, can you see messages from the previous boot in dmesg after a reboot? -- Andriy Gapon
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