Bug 13736
| Summary: | Intel BIOS - Corrupted low memory at ffff880000004200 | ||
|---|---|---|---|
| Product: | Platform Specific/Hardware | Reporter: | Oleksij Rempel (fishor) (bug-track) |
| Component: | x86-64 | Assignee: | platform_x86_64 (platform_x86_64) |
| Status: | CLOSED CODE_FIX | ||
| Severity: | normal | CC: | aabonesml, alan, david, mikko.rantalainen, suresh.b.siddha |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 2.6.31-rc2 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: |
dmesg befor patch
dmesg after patch dmidecode dg45fc dmesg dg45fc with error |
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Created attachment 22244 [details]
dmesg befor patch
Created attachment 22245 [details]
dmesg after patch
Alexey, What is your bios version? Can you please check and confirm if the latest bios for this board (version 107 date 06/24/2009) still causes this corruption? For latest bios, go to "bios updates" at http://www.intel.com/support/motherboards/desktop/dg45id/ I use latest bios I'll reassign this to x86_64. Alexey, it would help if you were to email that patch please. At least the issue won't get forgotten about. Documentation/SubmittingPatches has some info. Suitable recipients are Andrew Morton <akpm@linux-foundation.org> "Siddha, Suresh B" <suresh.b.siddha@intel.com> Ingo Molnar <mingo@elte.hu> Thomas Gleixner <tglx@linutronix.de> "H. Peter Anvin" <hpa@zytor.com> linux-kernel@vger.kernel.org The DMI string "Intel Corp." seems awfully general. Hallo Andrew, this patch was applied linux-2.6-tip tree. http://git.kernel.org/?p=linux/kernel/git/x86/linux-2.6-tip.git;a=commitdiff;h=6aa542a694dc9ea4344a8a590d2628c33d1b9431 I changed DMI_BIOS_VENDOR, "Intel Corp." to DMI_BOARD_NAME, "DG45ID" As far as I know, the Intel DG45FC motherboard shares much of the hardware and has the exact same BIOS as the DG45ID. I haven't seen the above warnings in dmesg after suspend-to-ram and resume though. How can I know for sure if a similar patch is needed for the DG45FC? Grab latest git and compile kernel with CONFIG_X86_CHECK_BIOS_CORRUPTION=y CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK=y CONFIG_X86_RESERVE_LOW_64K=n after resume wait some time. I can confirm the same thing for the intel board DG45FC. please attach your dmidecode and dmesg with this message. Here is the dmidecode. I'll have to recompile my kernel to get you the dmesg with the error since I've already compiled in the patch with the change of "DG45ID" to "DG45FC", which fixed it. But in the mean time I've attached dmesg with my updated patch. -Tony On Wed, Sep 2, 2009 at 8:57 PM, <bugzilla-daemon@bugzilla.kernel.org> wrote: > > http://bugzilla.kernel.org/show_bug.cgi?id=13736 > > > > > > --- Comment #10 from Alexey Fisher <bug-track@fisher-privat.net> 2009-09-03 > 03:57:43 --- > please attach your dmidecode and dmesg with this message. > > -- > Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email > ------- You are receiving this mail because: ------- > You are on the CC list for the bug. I attached the files to the email, was that not right? Sry, I'm new here, just signed up. Should I attach via the form at the top of the issue instead? I'll make sure to purge the org email response from the email next time too. Created attachment 22992 [details]
dmidecode dg45fc
Created attachment 22993 [details]
dmesg dg45fc with error
Any progress with this issue? The fix for DG45FC is in both 2.6.33 and 2.6.32.X (can't remember which X exactly). Someone with the right permissions will have to mark the bug resolved... |
I'm getting "Corrupted low memory" trace with my Intel DG45ID board after resume. This board has different dmi-bios-vendor to ami or phonix... so probably it will be nice to have it in your patch. Here is trace after resume: =============================================== [ 600.816088] Corrupted low memory at ffff880000004200 (4200 phys) = 00420301 [ 600.816093] ------------[ cut here ]------------ [ 600.816100] WARNING: at arch/x86/kernel/check.c:134 check_for_bios_corruption+0xe4/0xf0() [ 600.816102] Hardware name: [ 600.816103] Memory corruption detected in low memory [ 600.816105] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat binfmt_misc kvm_intel kvm snd_hda_codec_intelhdmi snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device snd psmouse soundcore e1000e serio_raw iTCO_wdt iTCO_vendor_support snd_page_alloc [ 600.816129] Pid: 9, comm: events/0 Tainted: G W 2.6.31-rc1-25446-g1ae8c0a #1 [ 600.816131] Call Trace: [ 600.816136] [<ffffffff8104a8e8>] warn_slowpath_common+0x78/0xb0 [ 600.816139] [<ffffffff8104a97c>] warn_slowpath_fmt+0x3c/0x40 [ 600.816142] [<ffffffff8102aff4>] check_for_bios_corruption+0xe4/0xf0 [ 600.816145] [<ffffffff8102b000>] ? check_corruption+0x0/0x30 [ 600.816148] [<ffffffff8102b009>] check_corruption+0x9/0x30 [ 600.816152] [<ffffffff8105e4d4>] worker_thread+0x144/0x260 [ 600.816155] [<ffffffff810635c0>] ? autoremove_wake_function+0x0/0x40 [ 600.816158] [<ffffffff8105e390>] ? worker_thread+0x0/0x260 [ 600.816161] [<ffffffff810631e6>] kthread+0x96/0xa0 [ 600.816165] [<ffffffff8100c69a>] child_rip+0xa/0x20 [ 600.816168] [<ffffffff81063150>] ? kthread+0x0/0xa0 [ 600.816171] [<ffffffff8100c690>] ? child_rip+0x0/0x20 [ 600.816173] ---[ end trace 03ff161c20a96dae ]--- ===================================================================== result of "dmidecode -s bios-vendor" is "Intel Corp." here is patch against latest git. It's working fine with my board. diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index de2cab1..89d00e2 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -672,6 +672,13 @@ static struct dmi_system_id __initdata bad_bios_dmi_table[] = { DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies"), }, }, + { + .callback = dmi_low_memory_corruption, + .ident = "Intel BIOS", + .matches = { + DMI_MATCH(DMI_BIOS_VENDOR, "Intel Corp."), + }, + }, #endif {} };