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New: WARNING: at arch/x86/mm/ioremap.c:137 __ioremap+0x1d5/0x1f0() during bootup

Bugme-new Andrew Morton 3 participants 3 messages Feb 26, 2008 1 message not in the archive ACPI

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#1 lore raw
Quoted 18 lines · On Sat, 23 Feb 2008 09:09:25 -0800 (PST) [email protected] wrote:

http://bugzilla.kernel.org/show_bug.cgi?id=10072

           Summary: WARNING: at arch/x86/mm/ioremap.c:137
                    __ioremap+0x1d5/0x1f0() during bootup
           Product: Memory Management
           Version: 2.5
     KernelVersion: 2.6.25-rc2-00496-g39273b5
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: low
          Priority: P1
         Component: Other
        AssignedTo: [email protected]
        ReportedBy: [email protected]
Quoted 7 lines

Latest working kernel version:
Earliest failing kernel version:
Distribution: Slackware 12
Hardware Environment: AMD Duron 850MHz CPU, 512 MB RAM Software Environment:
Problem Description: WARNING section in bootup log (attached)

This is an acpi regression, I believe. And it was reported a week or two ago.

#2 lore raw
Quoted 28 lines · Andrew Morton
Quoted 18 lines · On Sat, 23 Feb 2008 09:09:25 -0800 (PST) [email protected] wrote:

http://bugzilla.kernel.org/show_bug.cgi?id=10072

           Summary: WARNING: at arch/x86/mm/ioremap.c:137
                    __ioremap+0x1d5/0x1f0() during bootup
           Product: Memory Management
           Version: 2.5
     KernelVersion: 2.6.25-rc2-00496-g39273b5
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: low
          Priority: P1
         Component: Other
        AssignedTo: [email protected]
        ReportedBy: [email protected]
Quoted 7 lines

Latest working kernel version:
Earliest failing kernel version:
Distribution: Slackware 12
Hardware Environment: AMD Duron 850MHz CPU, 512 MB RAM Software Environment:
Problem Description: WARNING section in bootup log (attached)

Quoted 2 lines

This is an acpi regression, I believe. And it was reported a week or two ago.

It's the same thing as http://bugzilla.kernel.org/show_bug.cgi?id=10104 , already on the regressions list.

Thanks,
Rafael

#3 lore raw
Quoted 29 lines · On Tue, 26 Feb 2008 01:19:29 +0100 "Rafael J. Wysocki" <[email protected]> wrote:
Quoted 28 lines · Andrew Morton
Quoted 25 lines · On Sat, 23 Feb 2008 09:09:25 -0800 (PST) [email protected] wrote:

http://bugzilla.kernel.org/show_bug.cgi?id=10072

           Summary: WARNING: at arch/x86/mm/ioremap.c:137
                    __ioremap+0x1d5/0x1f0() during bootup
           Product: Memory Management
           Version: 2.5
     KernelVersion: 2.6.25-rc2-00496-g39273b5
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: low
          Priority: P1
         Component: Other
        AssignedTo: [email protected]
        ReportedBy: [email protected]

Latest working kernel version:
Earliest failing kernel version:
Distribution: Slackware 12
Hardware Environment: AMD Duron 850MHz CPU, 512 MB RAM Software Environment:
Problem Description: WARNING section in bootup log (attached)

Quoted 6 lines
Quoted 2 lines

This is an acpi regression, I believe. And it was reported a week or two ago.

It's the same thing as http://bugzilla.kernel.org/show_bug.cgi?id=10104 , already on the regressions list.

my machine sees this.

BTW, what this warning does on my console is

ACPI: EC: Look up EC in DSDT

------------[ cut here ]------------
WARNING: at arch/x86/mm/ioremap.c:137 __ioremap+0xb1/0x16b()
Modules linked in:
.......................... VERY VERY LONG STACK DUMP
=======================
---[ end trace ca143223eefdc828 ]---

Final console image was

....
VERY VERY LONG STACK DUMP
=======================

---[ end trace ca143223eefdc828 ]---

...no information.

And nothing goes on (because the kernel is in very very slow path.) (takes several minutes.)

I have to remove stack dump to find this is just a warning. (I have no serial console.)

It seems show_stack() supports kstack=XX option.
Does it make sense to add same kind of option for limiting length of dump_trace() ?

Thanks,
-Kame