Date: Mon, 22 Sep 2003 18:09:22 +1200 From: Andrew Thompson <andy@fud.org.nz> To: Nate Lawson <nate@root.org> Cc: current@freebsd.org Subject: Re: ACPI and a Toshiba Tecra 8000 Message-ID: <03Sep22.060710nzst.336005@homer.fire.org.nz> In-Reply-To: <03Sep21.234726nzst.336010@homer.fire.org.nz> References: <20030916115255.A9706@root.org> <3F6763D3.8010007@fud.org.nz> <20030916122545.V9796@root.org> <03Sep16.233331nzst.336012@homer.fire.org.nz> <20030919152455.K23391@root.org> <03Sep21.234726nzst.336010@homer.fire.org.nz>
next in thread | previous in thread | raw e-mail | index | archive | help
Andrew Thompson wrote: > Nate Lawson wrote: > >> On Wed, 17 Sep 2003, Andrew Thompson wrote: >> >>> >>> It has helped and the laptop is able to suspend with the serial cable >>> attached (further than before). It now panics on the first resume with >>> the following (gdb output at bottom). >> >> >> >> You should do a quick grep through sys/dev/syscons for >> "= sc->cur_scp->index" and replace them all with the above NULL check. >> I'm interested if this will fix things. >> > > Hi, > > I fixed the other null derefernce in sc_bell() and the laptop is now > suspending with the serial console the same as without. > Hi again, again, I am a keen newbie kernel debugger but here is as far as I have got :) The first suspend it goes through the functions: acpi_SetSleepState() -> AcpiEnterSleepStatePrep() -> acpi_sleep_machdep() -> AcpiEnterSleepState() as it should, but the second suspend it only does acpi_SetSleepState() -> AcpiEnterSleepStatePrep() and then the laptop suspends itself. I am unsure why it is not getting as far the second time... db> b acpi_SetSleepState db> b AcpiEnterSleepStatePrep db> b acpi_sleep_machdep db> b AcpiEnterSleepState db> c <suspend #1> Breakpoint at acpi_SetSleepState: pushl %ebp db> c Breakpoint at AcpiEnterSleepStatePrep: pushl %ebp db> c Breakpoint at acpi_sleep_machdep: pushl %ebp db> c ======== acpi_printcpu() debug dump ======== gdt[0077:c04b94c0] idt[0407:c04b9860] ldt[0028] tr[0020] efl[00000096] eax[00001000] ebx[c1234d00] ecx[00000000] edx[bfc00004] esi[00000000] edi[c09f54b0] ebp[c62f3aa8] esp[c62f3a70] cr0[8005003b] cr2[280b0b40] cr3[01f8c000] cr4[00000091] cs[0008] ds[0010] es[0010] fs[0018] gs[002f] ss[0010] Breakpoint at AcpiEnterSleepState: pushl %ebp db> c <laptop suspends, resumes correctly> <suspend #2> Breakpoint at acpi_SetSleepState: pushl %ebp db> c Breakpoint at AcpiEnterSleepStatePrep: pushl %ebp db> c <laptop suspends here, reboots on resume>
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?03Sep22.060710nzst.336005>