5.6-### doesn't boot

5.6-### doesn't boot

[Jörg Otte]

Hi,
my notebook doesn't boot with current kernel. Booting stops right after
displaying "loading initial ramdisk..". No further displays.
Also nothing is wriiten to the logs.

last known good kernel is : vmlinuz-5.5.0-00849-gb0be0eff1a5a
first known bad kernel is : vmlinuz-5.5.0-01154-gc677124e631d

Thanks, Jörg

Re: 5.6-### doesn't boot

[Linus Torvalds]

On Thu, Jan 30, 2020 at 9:32 AM Jörg Otte <jrg.otte@gmail.com> wrote:
>
> my notebook doesn't boot with current kernel. Booting stops right after
> displaying "loading initial ramdisk..". No further displays.
> Also nothing is wriiten to the logs.
>
> last known good kernel is : vmlinuz-5.5.0-00849-gb0be0eff1a5a
> first known bad kernel is : vmlinuz-5.5.0-01154-gc677124e631d

It would be lovely if you can bisect a bit. But my merges in that
range are all from Ingo:

Ingo Molnar (7):
    header cleanup
    objtool updates
    RCU updates
    EFI updates
    locking updates
    perf updates
    scheduler updates

but not having any messages at all makes it hard to guess where it would be.

A few bisect runs would narrow it down a fair amount. Bisecting all
the way would be even better, of course,

            Linus

Re: 5.6-### doesn't boot

[Andy Lutomirski]

> On Jan 30, 2020, at 10:08 AM, Linus Torvalds <torvalds@linux-foundation.org> wrote:
> 
> On Thu, Jan 30, 2020 at 9:32 AM Jörg Otte <jrg.otte@gmail.com> wrote:
>> 
>> my notebook doesn't boot with current kernel. Booting stops right after
>> displaying "loading initial ramdisk..". No further displays.
>> Also nothing is wriiten to the logs.
>> 
>> last known good kernel is : vmlinuz-5.5.0-00849-gb0be0eff1a5a
>> first known bad kernel is : vmlinuz-5.5.0-01154-gc677124e631d
> 
> It would be lovely if you can bisect a bit. But my merges in that
> range are all from Ingo:
> 
> Ingo Molnar (7):
>    header cleanup
>    objtool updates
>    RCU updates
>    EFI updates
>    locking updates
>    perf updates
>    scheduler updates
> 
> but not having any messages at all makes it hard to guess where it would be.
> 
> A few bisect runs would narrow it down a fair amount. Bisecting all
> the way would be even better, of course,
> 
> 

It would also be nice to know: are you EFI-booting or BIOS-booting?  And are you using EFI mixed mode?  (That is, are you booting a 64-bit kernel using 32-bit EFI?)

Re: 5.6-### doesn't boot

[Ingo Molnar]

* Linus Torvalds <torvalds@linux-foundation.org> wrote:

> On Thu, Jan 30, 2020 at 9:32 AM Jörg Otte <jrg.otte@gmail.com> wrote:
> >
> > my notebook doesn't boot with current kernel. Booting stops right after
> > displaying "loading initial ramdisk..". No further displays.
> > Also nothing is wriiten to the logs.
> >
> > last known good kernel is : vmlinuz-5.5.0-00849-gb0be0eff1a5a
> > first known bad kernel is : vmlinuz-5.5.0-01154-gc677124e631d
>
> It would be lovely if you can bisect a bit. But my merges in that
> range are all from Ingo:
> 
> Ingo Molnar (7):
>     header cleanup
>     objtool updates
>     RCU updates
>     EFI updates
>     locking updates
>     perf updates
>     scheduler updates

If I had to guess then perhaps the EFI changes look the most dangerous 
ones from these trees - but in principle most of these trees could 
contain a boot crasher/hang bug.

> but not having any messages at all makes it hard to guess where it 
> would be.

To improve debug output:

Removing any 'fbcon' options in /boot/grub/grub.cfg and adding this to 
the boot options might improve the debug output:

  earlyprintk=vga initcall_debug ignore_loglevel debug panic_on_warn 

So for example if the relevant kernel boot entry in grub.cfg looks like 
this:

  linux   /vmlinuz-5.3.0-26-generic root=UUID=1bcxabe3-0b62-4x04-b456-47cd90c0e6x4 ro  splash $vt_handoff

Then editing it to the following could in principle produce (much) more 
verbose boot output:

  linux   /vmlinuz-5.3.0-26-generic root=UUID=1bcxabe3-0b62-4x04-b456-47cd90c0e6x4 ro earlyprintk=vga initcall_debug ignore_loglevel debug panic_on_warn $vt_handoff

If this produces more output than just "loading initial ramdisk..' then a 
photo of the hung screen would be sufficient, no need to transcribe it.

> A few bisect runs would narrow it down a fair amount. Bisecting all the 
> way would be even better, of course,

Agreed!

If compiling full kernels for bisections takes too long (for example 
because the .config is from a distro kernel) then running "make 
localmodconfig" to create a config tailored to the currently active 
modules will cut down significantly on build time.

Also, a warning: if the normal boot log contains spurious warnings then 
the new 'panic_on_warn' option will cause additional trouble on good 
kernels.

Thanks,

	Ingo

Re: 5.6-### doesn't boot

[Jörg Otte]

Am Fr., 31. Jan. 2020 um 07:43 Uhr schrieb Ingo Molnar <mingo@kernel.org>:
>
>
> * Linus Torvalds <torvalds@linux-foundation.org> wrote:
>
> > On Thu, Jan 30, 2020 at 9:32 AM Jörg Otte <jrg.otte@gmail.com> wrote:
> > >
> > > my notebook doesn't boot with current kernel. Booting stops right after
> > > displaying "loading initial ramdisk..". No further displays.
> > > Also nothing is wriiten to the logs.
> > >
> > > last known good kernel is : vmlinuz-5.5.0-00849-gb0be0eff1a5a
> > > first known bad kernel is : vmlinuz-5.5.0-01154-gc677124e631d
> >
> > It would be lovely if you can bisect a bit. But my merges in that
> > range are all from Ingo:
> >
> > Ingo Molnar (7):
> >     header cleanup
> >     objtool updates
> >     RCU updates
> >     EFI updates
> >     locking updates
> >     perf updates
> >     scheduler updates
>
> If I had to guess then perhaps the EFI changes look the most dangerous
> ones from these trees - but in principle most of these trees could
> contain a boot crasher/hang bug.
>
> > but not having any messages at all makes it hard to guess where it
> > would be.
>
> To improve debug output:
>
> Removing any 'fbcon' options in /boot/grub/grub.cfg and adding this to
> the boot options might improve the debug output:
>
>   earlyprintk=vga initcall_debug ignore_loglevel debug panic_on_warn
>
> So for example if the relevant kernel boot entry in grub.cfg looks like
> this:
>
>   linux   /vmlinuz-5.3.0-26-generic root=UUID=1bcxabe3-0b62-4x04-b456-47cd90c0e6x4 ro  splash $vt_handoff
>
> Then editing it to the following could in principle produce (much) more
> verbose boot output:
>
>   linux   /vmlinuz-5.3.0-26-generic root=UUID=1bcxabe3-0b62-4x04-b456-47cd90c0e6x4 ro earlyprintk=vga initcall_debug ignore_loglevel debug panic_on_warn $vt_handoff
>
> If this produces more output than just "loading initial ramdisk..' then a
> photo of the hung screen would be sufficient, no need to transcribe it.
>
> > A few bisect runs would narrow it down a fair amount. Bisecting all the
> > way would be even better, of course,
>
> Agreed!
>
> If compiling full kernels for bisections takes too long (for example
> because the .config is from a distro kernel) then running "make
> localmodconfig" to create a config tailored to the currently active
> modules will cut down significantly on build time.
>
> Also, a warning: if the normal boot log contains spurious warnings then
> the new 'panic_on_warn' option will cause additional trouble on good
> kernels.

It's bisected.
The first bad commit is :
1db91035d01aa8bfa2350c00ccb63d629b4041ad
efi: Add tracking for dynamically allocated memmaps

Unfortunately I can not revert because of compile errors!

In file included from /media/jojo/deftoshiba/kernel/linux/init/main.c:48:
/media/jojo/deftoshiba/kernel/linux/include/linux/efi.h:975:1: error:
version control conflict marker in file
<<<<<<< HEAD
^~~~~~~
/media/jojo/deftoshiba/kernel/linux/include/linux/efi.h:980:1: error:
version control conflict marker in file
=======
^~~~~~~
/media/jojo/deftoshiba/kernel/linux/include/linux/efi.h:982:1: error:
version control conflict marker in file
>>>>>>> parent of 1db91035d01a... efi: Add tracking for dynamically allocated memmaps


....

EFI boot crash regression (was: Re: 5.6-### doesn't boot)

[Ingo Molnar]

(Cc:ed Dan and Ard)

* Jörg Otte <jrg.otte@gmail.com> wrote:

> Am Fr., 31. Jan. 2020 um 07:43 Uhr schrieb Ingo Molnar <mingo@kernel.org>:
> >
> >
> > * Linus Torvalds <torvalds@linux-foundation.org> wrote:
> >
> > > On Thu, Jan 30, 2020 at 9:32 AM Jörg Otte <jrg.otte@gmail.com> wrote:
> > > >
> > > > my notebook doesn't boot with current kernel. Booting stops right after
> > > > displaying "loading initial ramdisk..". No further displays.
> > > > Also nothing is wriiten to the logs.
> > > >
> > > > last known good kernel is : vmlinuz-5.5.0-00849-gb0be0eff1a5a
> > > > first known bad kernel is : vmlinuz-5.5.0-01154-gc677124e631d
> > >
> > > It would be lovely if you can bisect a bit. But my merges in that
> > > range are all from Ingo:
> > >
> > > Ingo Molnar (7):
> > >     header cleanup
> > >     objtool updates
> > >     RCU updates
> > >     EFI updates
> > >     locking updates
> > >     perf updates
> > >     scheduler updates
> >
> > If I had to guess then perhaps the EFI changes look the most dangerous
> > ones from these trees - but in principle most of these trees could
> > contain a boot crasher/hang bug.
> >
> > > but not having any messages at all makes it hard to guess where it
> > > would be.
> >
> > To improve debug output:
> >
> > Removing any 'fbcon' options in /boot/grub/grub.cfg and adding this to
> > the boot options might improve the debug output:
> >
> >   earlyprintk=vga initcall_debug ignore_loglevel debug panic_on_warn
> >
> > So for example if the relevant kernel boot entry in grub.cfg looks like
> > this:
> >
> >   linux   /vmlinuz-5.3.0-26-generic root=UUID=1bcxabe3-0b62-4x04-b456-47cd90c0e6x4 ro  splash $vt_handoff
> >
> > Then editing it to the following could in principle produce (much) more
> > verbose boot output:
> >
> >   linux   /vmlinuz-5.3.0-26-generic root=UUID=1bcxabe3-0b62-4x04-b456-47cd90c0e6x4 ro earlyprintk=vga initcall_debug ignore_loglevel debug panic_on_warn $vt_handoff
> >
> > If this produces more output than just "loading initial ramdisk..' then a
> > photo of the hung screen would be sufficient, no need to transcribe it.
> >
> > > A few bisect runs would narrow it down a fair amount. Bisecting all the
> > > way would be even better, of course,
> >
> > Agreed!
> >
> > If compiling full kernels for bisections takes too long (for example
> > because the .config is from a distro kernel) then running "make
> > localmodconfig" to create a config tailored to the currently active
> > modules will cut down significantly on build time.
> >
> > Also, a warning: if the normal boot log contains spurious warnings then
> > the new 'panic_on_warn' option will cause additional trouble on good
> > kernels.
> 
> It's bisected.
> The first bad commit is :
> 1db91035d01aa8bfa2350c00ccb63d629b4041ad
> efi: Add tracking for dynamically allocated memmaps

Thanks a ton, that's very useful!

I've Cc:-ed the EFI gents who are developing this code, maybe they'll 
spot the bug.

Thanks,

	Ingo

Re: EFI boot crash regression (was: Re: 5.6-### doesn't boot)

[Dan Williams]

On Fri, Jan 31, 2020 at 10:37 AM Ingo Molnar <mingo@kernel.org> wrote:
>
>
> (Cc:ed Dan and Ard)
>
> * Jörg Otte <jrg.otte@gmail.com> wrote:
>
> > Am Fr., 31. Jan. 2020 um 07:43 Uhr schrieb Ingo Molnar <mingo@kernel.org>:
> > >
> > >
> > > * Linus Torvalds <torvalds@linux-foundation.org> wrote:
> > >
> > > > On Thu, Jan 30, 2020 at 9:32 AM Jörg Otte <jrg.otte@gmail.com> wrote:
> > > > >
> > > > > my notebook doesn't boot with current kernel. Booting stops right after
> > > > > displaying "loading initial ramdisk..". No further displays.
> > > > > Also nothing is wriiten to the logs.
> > > > >
> > > > > last known good kernel is : vmlinuz-5.5.0-00849-gb0be0eff1a5a
> > > > > first known bad kernel is : vmlinuz-5.5.0-01154-gc677124e631d
> > > >
> > > > It would be lovely if you can bisect a bit. But my merges in that
> > > > range are all from Ingo:
> > > >
> > > > Ingo Molnar (7):
> > > >     header cleanup
> > > >     objtool updates
> > > >     RCU updates
> > > >     EFI updates
> > > >     locking updates
> > > >     perf updates
> > > >     scheduler updates
> > >
> > > If I had to guess then perhaps the EFI changes look the most dangerous
> > > ones from these trees - but in principle most of these trees could
> > > contain a boot crasher/hang bug.
> > >
> > > > but not having any messages at all makes it hard to guess where it
> > > > would be.
> > >
> > > To improve debug output:
> > >
> > > Removing any 'fbcon' options in /boot/grub/grub.cfg and adding this to
> > > the boot options might improve the debug output:
> > >
> > >   earlyprintk=vga initcall_debug ignore_loglevel debug panic_on_warn
> > >
> > > So for example if the relevant kernel boot entry in grub.cfg looks like
> > > this:
> > >
> > >   linux   /vmlinuz-5.3.0-26-generic root=UUID=1bcxabe3-0b62-4x04-b456-47cd90c0e6x4 ro  splash $vt_handoff
> > >
> > > Then editing it to the following could in principle produce (much) more
> > > verbose boot output:
> > >
> > >   linux   /vmlinuz-5.3.0-26-generic root=UUID=1bcxabe3-0b62-4x04-b456-47cd90c0e6x4 ro earlyprintk=vga initcall_debug ignore_loglevel debug panic_on_warn $vt_handoff
> > >
> > > If this produces more output than just "loading initial ramdisk..' then a
> > > photo of the hung screen would be sufficient, no need to transcribe it.
> > >
> > > > A few bisect runs would narrow it down a fair amount. Bisecting all the
> > > > way would be even better, of course,
> > >
> > > Agreed!
> > >
> > > If compiling full kernels for bisections takes too long (for example
> > > because the .config is from a distro kernel) then running "make
> > > localmodconfig" to create a config tailored to the currently active
> > > modules will cut down significantly on build time.
> > >
> > > Also, a warning: if the normal boot log contains spurious warnings then
> > > the new 'panic_on_warn' option will cause additional trouble on good
> > > kernels.
> >
> > It's bisected.
> > The first bad commit is :
> > 1db91035d01aa8bfa2350c00ccb63d629b4041ad
> > efi: Add tracking for dynamically allocated memmaps
>
> Thanks a ton, that's very useful!
>
> I've Cc:-ed the EFI gents who are developing this code, maybe they'll
> spot the bug.

I'll take a look. Jörg, can you paste a full dmesg from a good boot?

[TEST PATCH RFC] Revert the EFI leak fixes for now (was: Re: EFI boot crash regression (was: Re: 5.6-### doesn't boot))

[Ingo Molnar]

Jörg Otte wrote:

> It's bisected.
> The first bad commit is :
> 1db91035d01aa8bfa2350c00ccb63d629b4041ad
> efi: Add tracking for dynamically allocated memmaps

> Unfortunately I can not revert because of compile errors!
>
> In file included from /media/jojo/deftoshiba/kernel/linux/init/main.c:48:
> /media/jojo/deftoshiba/kernel/linux/include/linux/efi.h:975:1: error:
> version control conflict marker in file
> <<<<<<< HEAD

So 1db91035d0 doesn't revert cleanly, because 484a418d0754 depends on it, 
plus there a third commit (f0ef6523475f) that has a semantic dependency 
on 1db91035d01a.

But you can revert them all, if done in reverse chronological order:

  git revert f0ef6523475f # ("efi: Fix efi_memmap_alloc() leaks")
  git revert 484a418d0754 # ("efi: Fix handling of multiple efi_fake_mem= entries")
  git revert 1db91035d01a # ("efi: Add tracking for dynamically allocated memmaps")

You can paste those three lines into a shell as-is, or you can apply the 
patch below which is a combination of these three reverts.

Jörg, can you confirm that doing these reverts fixes booting on your 
system? If it does then a full dmesg from that kernel would be useful.

FWIW I reviewed the bisected commit and didn't find the bug but I also 
couldn't convince myself it's a 1:1 identity transformation and cleanup 
of the existing logic.

The size arithmethics transformation looks correct at first sight, but 
the data->flags handling in particular looks rather interwoven.

Thanks,

	Ingo

============================>

 arch/x86/platform/efi/efi.c     | 10 ++----
 arch/x86/platform/efi/quirks.c  | 23 +++++++------
 drivers/firmware/efi/fake_mem.c | 43 ++++++++++++------------
 drivers/firmware/efi/memmap.c   | 72 ++++++++++++-----------------------------
 include/linux/efi.h             | 13 +++-----
 5 files changed, 63 insertions(+), 98 deletions(-)

diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 59f7f6d60cf6..4e46d2d24352 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -304,16 +304,10 @@ static void __init efi_clean_memmap(void)
 	}
 
 	if (n_removal > 0) {
-		struct efi_memory_map_data data = {
-			.phys_map = efi.memmap.phys_map,
-			.desc_version = efi.memmap.desc_version,
-			.desc_size = efi.memmap.desc_size,
-			.size = data.desc_size * (efi.memmap.nr_map - n_removal),
-			.flags = 0,
-		};
+		u64 size = efi.memmap.nr_map - n_removal;
 
 		pr_warn("Removing %d invalid memory map entries.\n", n_removal);
-		efi_memmap_install(&data);
+		efi_memmap_install(efi.memmap.phys_map, size);
 	}
 }
 
diff --git a/arch/x86/platform/efi/quirks.c b/arch/x86/platform/efi/quirks.c
index 88d32c06cffa..86b44289ac55 100644
--- a/arch/x86/platform/efi/quirks.c
+++ b/arch/x86/platform/efi/quirks.c
@@ -244,7 +244,7 @@ EXPORT_SYMBOL_GPL(efi_query_variable_store);
  */
 void __init efi_arch_mem_reserve(phys_addr_t addr, u64 size)
 {
-	struct efi_memory_map_data data = { 0 };
+	phys_addr_t new_phys, new_size;
 	struct efi_mem_range mr;
 	efi_memory_desc_t md;
 	int num_entries;
@@ -272,21 +272,24 @@ void __init efi_arch_mem_reserve(phys_addr_t addr, u64 size)
 	num_entries = efi_memmap_split_count(&md, &mr.range);
 	num_entries += efi.memmap.nr_map;
 
-	if (efi_memmap_alloc(num_entries, &data) != 0) {
+	new_size = efi.memmap.desc_size * num_entries;
+
+	new_phys = efi_memmap_alloc(num_entries);
+	if (!new_phys) {
 		pr_err("Could not allocate boot services memmap\n");
 		return;
 	}
 
-	new = early_memremap(data.phys_map, data.size);
+	new = early_memremap(new_phys, new_size);
 	if (!new) {
 		pr_err("Failed to map new boot services memmap\n");
 		return;
 	}
 
 	efi_memmap_insert(&efi.memmap, new, &mr);
-	early_memunmap(new, data.size);
+	early_memunmap(new, new_size);
 
-	efi_memmap_install(&data);
+	efi_memmap_install(new_phys, num_entries);
 	e820__range_update(addr, size, E820_TYPE_RAM, E820_TYPE_RESERVED);
 	e820__update_table(e820_table);
 }
@@ -405,7 +408,7 @@ static void __init efi_unmap_pages(efi_memory_desc_t *md)
 
 void __init efi_free_boot_services(void)
 {
-	struct efi_memory_map_data data = { 0 };
+	phys_addr_t new_phys, new_size;
 	efi_memory_desc_t *md;
 	int num_entries = 0;
 	void *new, *new_md;
@@ -460,12 +463,14 @@ void __init efi_free_boot_services(void)
 	if (!num_entries)
 		return;
 
-	if (efi_memmap_alloc(num_entries, &data) != 0) {
+	new_size = efi.memmap.desc_size * num_entries;
+	new_phys = efi_memmap_alloc(num_entries);
+	if (!new_phys) {
 		pr_err("Failed to allocate new EFI memmap\n");
 		return;
 	}
 
-	new = memremap(data.phys_map, data.size, MEMREMAP_WB);
+	new = memremap(new_phys, new_size, MEMREMAP_WB);
 	if (!new) {
 		pr_err("Failed to map new EFI memmap\n");
 		return;
@@ -489,7 +494,7 @@ void __init efi_free_boot_services(void)
 
 	memunmap(new);
 
-	if (efi_memmap_install(&data) != 0) {
+	if (efi_memmap_install(new_phys, num_entries)) {
 		pr_err("Could not install new EFI memmap\n");
 		return;
 	}
diff --git a/drivers/firmware/efi/fake_mem.c b/drivers/firmware/efi/fake_mem.c
index 6e0f34a38171..bb9fc70d0cfa 100644
--- a/drivers/firmware/efi/fake_mem.c
+++ b/drivers/firmware/efi/fake_mem.c
@@ -34,45 +34,46 @@ static int __init cmp_fake_mem(const void *x1, const void *x2)
 	return 0;
 }
 
-static void __init efi_fake_range(struct efi_mem_range *efi_range)
+void __init efi_fake_memmap(void)
 {
-	struct efi_memory_map_data data = { 0 };
 	int new_nr_map = efi.memmap.nr_map;
 	efi_memory_desc_t *md;
+	phys_addr_t new_memmap_phy;
 	void *new_memmap;
+	int i;
+
+	if (!efi_enabled(EFI_MEMMAP) || !nr_fake_mem)
+		return;
 
 	/* count up the number of EFI memory descriptor */
-	for_each_efi_memory_desc(md)
-		new_nr_map += efi_memmap_split_count(md, &efi_range->range);
+	for (i = 0; i < nr_fake_mem; i++) {
+		for_each_efi_memory_desc(md) {
+			struct range *r = &efi_fake_mems[i].range;
+
+			new_nr_map += efi_memmap_split_count(md, r);
+		}
+	}
 
 	/* allocate memory for new EFI memmap */
-	if (efi_memmap_alloc(new_nr_map, &data) != 0)
+	new_memmap_phy = efi_memmap_alloc(new_nr_map);
+	if (!new_memmap_phy)
 		return;
 
 	/* create new EFI memmap */
-	new_memmap = early_memremap(data.phys_map, data.size);
+	new_memmap = early_memremap(new_memmap_phy,
+				    efi.memmap.desc_size * new_nr_map);
 	if (!new_memmap) {
-		__efi_memmap_free(data.phys_map, data.size, data.flags);
+		memblock_free(new_memmap_phy, efi.memmap.desc_size * new_nr_map);
 		return;
 	}
 
-	efi_memmap_insert(&efi.memmap, new_memmap, efi_range);
+	for (i = 0; i < nr_fake_mem; i++)
+		efi_memmap_insert(&efi.memmap, new_memmap, &efi_fake_mems[i]);
 
 	/* swap into new EFI memmap */
-	early_memunmap(new_memmap, data.size);
-
-	efi_memmap_install(&data);
-}
-
-void __init efi_fake_memmap(void)
-{
-	int i;
+	early_memunmap(new_memmap, efi.memmap.desc_size * new_nr_map);
 
-	if (!efi_enabled(EFI_MEMMAP) || !nr_fake_mem)
-		return;
-
-	for (i = 0; i < nr_fake_mem; i++)
-		efi_fake_range(&efi_fake_mems[i]);
+	efi_memmap_install(new_memmap_phy, new_nr_map);
 
 	/* print new EFI memmap */
 	efi_print_memmap();
diff --git a/drivers/firmware/efi/memmap.c b/drivers/firmware/efi/memmap.c
index 2ff1883dc788..4f98eb12c172 100644
--- a/drivers/firmware/efi/memmap.c
+++ b/drivers/firmware/efi/memmap.c
@@ -29,32 +29,9 @@ static phys_addr_t __init __efi_memmap_alloc_late(unsigned long size)
 	return PFN_PHYS(page_to_pfn(p));
 }
 
-void __init __efi_memmap_free(u64 phys, unsigned long size, unsigned long flags)
-{
-	if (flags & EFI_MEMMAP_MEMBLOCK) {
-		if (slab_is_available())
-			memblock_free_late(phys, size);
-		else
-			memblock_free(phys, size);
-	} else if (flags & EFI_MEMMAP_SLAB) {
-		struct page *p = pfn_to_page(PHYS_PFN(phys));
-		unsigned int order = get_order(size);
-
-		free_pages((unsigned long) page_address(p), order);
-	}
-}
-
-static void __init efi_memmap_free(void)
-{
-	__efi_memmap_free(efi.memmap.phys_map,
-			efi.memmap.desc_size * efi.memmap.nr_map,
-			efi.memmap.flags);
-}
-
 /**
  * efi_memmap_alloc - Allocate memory for the EFI memory map
  * @num_entries: Number of entries in the allocated map.
- * @data: efi memmap installation parameters
  *
  * Depending on whether mm_init() has already been invoked or not,
  * either memblock or "normal" page allocation is used.
@@ -62,29 +39,14 @@ static void __init efi_memmap_free(void)
  * Returns the physical address of the allocated memory map on
  * success, zero on failure.
  */
-int __init efi_memmap_alloc(unsigned int num_entries,
-		struct efi_memory_map_data *data)
+phys_addr_t __init efi_memmap_alloc(unsigned int num_entries)
 {
-	/* Expect allocation parameters are zero initialized */
-	WARN_ON(data->phys_map || data->size);
-
-	data->size = num_entries * efi.memmap.desc_size;
-	data->desc_version = efi.memmap.desc_version;
-	data->desc_size = efi.memmap.desc_size;
-	data->flags &= ~(EFI_MEMMAP_SLAB | EFI_MEMMAP_MEMBLOCK);
-	data->flags |= efi.memmap.flags & EFI_MEMMAP_LATE;
-
-	if (slab_is_available()) {
-		data->flags |= EFI_MEMMAP_SLAB;
-		data->phys_map = __efi_memmap_alloc_late(data->size);
-	} else {
-		data->flags |= EFI_MEMMAP_MEMBLOCK;
-		data->phys_map = __efi_memmap_alloc_early(data->size);
-	}
+	unsigned long size = num_entries * efi.memmap.desc_size;
 
-	if (!data->phys_map)
-		return -ENOMEM;
-	return 0;
+	if (slab_is_available())
+		return __efi_memmap_alloc_late(size);
+
+	return __efi_memmap_alloc_early(size);
 }
 
 /**
@@ -102,7 +64,8 @@ int __init efi_memmap_alloc(unsigned int num_entries,
  *
  * Returns zero on success, a negative error code on failure.
  */
-static int __init __efi_memmap_init(struct efi_memory_map_data *data)
+static int __init
+__efi_memmap_init(struct efi_memory_map_data *data)
 {
 	struct efi_memory_map map;
 	phys_addr_t phys_map;
@@ -122,9 +85,6 @@ static int __init __efi_memmap_init(struct efi_memory_map_data *data)
 		return -ENOMEM;
 	}
 
-	/* NOP if data->flags & (EFI_MEMMAP_MEMBLOCK | EFI_MEMMAP_SLAB) == 0 */
-	efi_memmap_free();
-
 	map.phys_map = data->phys_map;
 	map.nr_map = data->size / data->desc_size;
 	map.map_end = map.map + data->size;
@@ -224,7 +184,8 @@ int __init efi_memmap_init_late(phys_addr_t addr, unsigned long size)
 
 /**
  * efi_memmap_install - Install a new EFI memory map in efi.memmap
- * @ctx: map allocation parameters (address, size, flags)
+ * @addr: Physical address of the memory map
+ * @nr_map: Number of entries in the memory map
  *
  * Unlike efi_memmap_init_*(), this function does not allow the caller
  * to switch from early to late mappings. It simply uses the existing
@@ -232,11 +193,20 @@ int __init efi_memmap_init_late(phys_addr_t addr, unsigned long size)
  *
  * Returns zero on success, a negative error code on failure.
  */
-int __init efi_memmap_install(struct efi_memory_map_data *data)
+int __init efi_memmap_install(phys_addr_t addr, unsigned int nr_map)
 {
+	struct efi_memory_map_data data;
+	unsigned long flags;
+
 	efi_memmap_unmap();
 
-	return __efi_memmap_init(data);
+	data.phys_map = addr;
+	data.size = efi.memmap.desc_size * nr_map;
+	data.desc_version = efi.memmap.desc_version;
+	data.desc_size = efi.memmap.desc_size;
+	data.flags = efi.memmap.flags & EFI_MEMMAP_LATE;
+
+	return __efi_memmap_init(&data);
 }
 
 /**
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 7efd7072cca5..f117d68c314e 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -759,8 +759,8 @@ typedef union {
 
 /*
  * Architecture independent structure for describing a memory map for the
- * benefit of efi_memmap_init_early(), and for passing context between
- * efi_memmap_alloc() and efi_memmap_install().
+ * benefit of efi_memmap_init_early(), saving us the need to pass four
+ * parameters.
  */
 struct efi_memory_map_data {
 	phys_addr_t phys_map;
@@ -778,8 +778,6 @@ struct efi_memory_map {
 	unsigned long desc_version;
 	unsigned long desc_size;
 #define EFI_MEMMAP_LATE (1UL << 0)
-#define EFI_MEMMAP_MEMBLOCK (1UL << 1)
-#define EFI_MEMMAP_SLAB (1UL << 2)
 	unsigned long flags;
 };
 
@@ -974,14 +972,11 @@ static inline efi_status_t efi_query_variable_store(u32 attributes,
 #endif
 extern void __iomem *efi_lookup_mapped_addr(u64 phys_addr);
 
-extern int __init efi_memmap_alloc(unsigned int num_entries,
-				   struct efi_memory_map_data *data);
-extern void __efi_memmap_free(u64 phys, unsigned long size,
-			      unsigned long flags);
+extern phys_addr_t __init efi_memmap_alloc(unsigned int num_entries);
 extern int __init efi_memmap_init_early(struct efi_memory_map_data *data);
 extern int __init efi_memmap_init_late(phys_addr_t addr, unsigned long size);
 extern void __init efi_memmap_unmap(void);
-extern int __init efi_memmap_install(struct efi_memory_map_data *data);
+extern int __init efi_memmap_install(phys_addr_t addr, unsigned int nr_map);
 extern int __init efi_memmap_split_count(efi_memory_desc_t *md,
 					 struct range *range);
 extern void __init efi_memmap_insert(struct efi_memory_map *old_memmap,

Re: EFI boot crash regression (was: Re: 5.6-### doesn't boot)

[Jörg Otte]

[-- Attachment #1: Type: text/plain, Size: 3631 bytes --]

Am Fr., 31. Jan. 2020 um 19:48 Uhr schrieb Dan Williams
<dan.j.williams@intel.com>:
>
> On Fri, Jan 31, 2020 at 10:37 AM Ingo Molnar <mingo@kernel.org> wrote:
> >
> >
> > (Cc:ed Dan and Ard)
> >
> > * Jörg Otte <jrg.otte@gmail.com> wrote:
> >
> > > Am Fr., 31. Jan. 2020 um 07:43 Uhr schrieb Ingo Molnar <mingo@kernel.org>:
> > > >
> > > >
> > > > * Linus Torvalds <torvalds@linux-foundation.org> wrote:
> > > >
> > > > > On Thu, Jan 30, 2020 at 9:32 AM Jörg Otte <jrg.otte@gmail.com> wrote:
> > > > > >
> > > > > > my notebook doesn't boot with current kernel. Booting stops right after
> > > > > > displaying "loading initial ramdisk..". No further displays.
> > > > > > Also nothing is wriiten to the logs.
> > > > > >
> > > > > > last known good kernel is : vmlinuz-5.5.0-00849-gb0be0eff1a5a
> > > > > > first known bad kernel is : vmlinuz-5.5.0-01154-gc677124e631d
> > > > >
> > > > > It would be lovely if you can bisect a bit. But my merges in that
> > > > > range are all from Ingo:
> > > > >
> > > > > Ingo Molnar (7):
> > > > >     header cleanup
> > > > >     objtool updates
> > > > >     RCU updates
> > > > >     EFI updates
> > > > >     locking updates
> > > > >     perf updates
> > > > >     scheduler updates
> > > >
> > > > If I had to guess then perhaps the EFI changes look the most dangerous
> > > > ones from these trees - but in principle most of these trees could
> > > > contain a boot crasher/hang bug.
> > > >
> > > > > but not having any messages at all makes it hard to guess where it
> > > > > would be.
> > > >
> > > > To improve debug output:
> > > >
> > > > Removing any 'fbcon' options in /boot/grub/grub.cfg and adding this to
> > > > the boot options might improve the debug output:
> > > >
> > > >   earlyprintk=vga initcall_debug ignore_loglevel debug panic_on_warn
> > > >
> > > > So for example if the relevant kernel boot entry in grub.cfg looks like
> > > > this:
> > > >
> > > >   linux   /vmlinuz-5.3.0-26-generic root=UUID=1bcxabe3-0b62-4x04-b456-47cd90c0e6x4 ro  splash $vt_handoff
> > > >
> > > > Then editing it to the following could in principle produce (much) more
> > > > verbose boot output:
> > > >
> > > >   linux   /vmlinuz-5.3.0-26-generic root=UUID=1bcxabe3-0b62-4x04-b456-47cd90c0e6x4 ro earlyprintk=vga initcall_debug ignore_loglevel debug panic_on_warn $vt_handoff
> > > >
> > > > If this produces more output than just "loading initial ramdisk..' then a
> > > > photo of the hung screen would be sufficient, no need to transcribe it.
> > > >
> > > > > A few bisect runs would narrow it down a fair amount. Bisecting all the
> > > > > way would be even better, of course,
> > > >
> > > > Agreed!
> > > >
> > > > If compiling full kernels for bisections takes too long (for example
> > > > because the .config is from a distro kernel) then running "make
> > > > localmodconfig" to create a config tailored to the currently active
> > > > modules will cut down significantly on build time.
> > > >
> > > > Also, a warning: if the normal boot log contains spurious warnings then
> > > > the new 'panic_on_warn' option will cause additional trouble on good
> > > > kernels.
> > >
> > > It's bisected.
> > > The first bad commit is :
> > > 1db91035d01aa8bfa2350c00ccb63d629b4041ad
> > > efi: Add tracking for dynamically allocated memmaps
> >
> > Thanks a ton, that's very useful!
> >
> > I've Cc:-ed the EFI gents who are developing this code, maybe they'll
> > spot the bug.
>
> I'll take a look. Jörg, can you paste a full dmesg from a good boot?

Here it is.

Thanks, Jörg

[-- Attachment #2: good-dmesg --]
[-- Type: application/octet-stream, Size: 50209 bytes --]

[    0.000000] microcode: microcode updated early to revision 0x27, date = 2019-02-26
[    0.000000] Linux version 5.5.0-00849-gb0be0eff1a5a (jojo@fichte) (gcc version 8.3.0 (Ubuntu 8.3.0-6ubuntu1~18.04.1)) #9 SMP Tue Jan 28 15:58:33 CET 2020
[    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-5.5.0-00849-gb0be0eff1a5a root=UUID=9e8cf5b2-8d9b-464c-870f-3ffc818ef7db ro quiet splash lsm=apparmor spectre_v2=auto acpi_mask_gpe=0x13 libata.noacpi=1 vt.handoff=1
[    0.000000] KERNEL supported cpus:
[    0.000000]   Intel GenuineIntel
[    0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
[    0.000000] x86/fpu: xstate_offset[2]:  576, xstate_sizes[2]:  256
[    0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format.
[    0.000000] BIOS-provided physical RAM map:
[    0.000000] BIOS-e820: [mem 0x0000000000000000-0x0000000000057fff] usable
[    0.000000] BIOS-e820: [mem 0x0000000000058000-0x0000000000058fff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000000059000-0x0000000000068fff] usable
[    0.000000] BIOS-e820: [mem 0x0000000000069000-0x000000000006bfff] reserved
[    0.000000] BIOS-e820: [mem 0x000000000006c000-0x000000000008bfff] usable
[    0.000000] BIOS-e820: [mem 0x000000000008c000-0x00000000000bffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000895d4fff] usable
[    0.000000] BIOS-e820: [mem 0x00000000895d5000-0x00000000897d6fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000897d7000-0x00000000db02efff] usable
[    0.000000] BIOS-e820: [mem 0x00000000db02f000-0x00000000db22efff] type 20
[    0.000000] BIOS-e820: [mem 0x00000000db22f000-0x00000000dce8efff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000dce8f000-0x00000000dcf9efff] ACPI NVS
[    0.000000] BIOS-e820: [mem 0x00000000dcf9f000-0x00000000dcffefff] ACPI data
[    0.000000] BIOS-e820: [mem 0x00000000dcfff000-0x00000000dcffffff] usable
[    0.000000] BIOS-e820: [mem 0x00000000dd000000-0x00000000df9fffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000f80f8000-0x00000000f80f8fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021f5fffff] usable
[    0.000000] NX (Execute Disable) protection: active
[    0.000000] efi: EFI v2.31 by Phoenix Technologies Ltd.
[    0.000000] efi:  ACPI=0xdcffe000  ACPI 2.0=0xdcffe014  SMBIOS=0xdce80000 
[    0.000000] efi: [Firmware Bug]: Invalid EFI memory map entries:
[    0.000000] efi: mem48: [Reserved           |   |  |  |  |  |  |  |  |   |  |  |  |  ] range=[0x0000000000000000-0x0000000000000000] (invalid)
[    0.000000] efi: mem49: [Reserved           |   |  |  |  |  |  |  |  |   |  |  |  |  ] range=[0x0000000000000000-0x0000000000000000] (invalid)
[    0.000000] efi: mem50: [Reserved           |   |  |  |  |  |  |  |  |   |  |  |  |  ] range=[0x0000000000000000-0x0000000000000000] (invalid)
[    0.000000] efi: mem51: [Reserved           |   |  |  |  |  |  |  |  |   |  |  |  |  ] range=[0x0000000000000000-0x0000000000000000] (invalid)
[    0.000000] efi: mem52: [Reserved           |   |  |  |  |  |  |  |  |   |  |  |  |  ] range=[0x0000000000000000-0x0000000000000000] (invalid)
[    0.000000] efi: Removing 5 invalid memory map entries.
[    0.000000] SMBIOS 2.7 present.
[    0.000000] DMI: FUJITSU LIFEBOOK A544/FJNBB35 , BIOS Version 1.17 05/09/2014
[    0.000000] tsc: Fast TSC calibration using PIT
[    0.000000] tsc: Detected 2494.118 MHz processor
[    0.000008] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
[    0.000009] e820: remove [mem 0x000a0000-0x000fffff] usable
[    0.000014] last_pfn = 0x21f600 max_arch_pfn = 0x400000000
[    0.000017] MTRR default type: write-back
[    0.000018] MTRR fixed ranges enabled:
[    0.000019]   00000-9FFFF write-back
[    0.000019]   A0000-BFFFF uncachable
[    0.000020]   C0000-DFFFF write-through
[    0.000021]   E0000-FFFFF write-protect
[    0.000021] MTRR variable ranges enabled:
[    0.000022]   0 base 00E0000000 mask 7FE0000000 uncachable
[    0.000023]   1 base 00DE000000 mask 7FFE000000 uncachable
[    0.000023]   2 base 00DD000000 mask 7FFF000000 uncachable
[    0.000024]   3 disabled
[    0.000024]   4 disabled
[    0.000024]   5 disabled
[    0.000025]   6 disabled
[    0.000025]   7 disabled
[    0.000025]   8 disabled
[    0.000025]   9 disabled
[    0.000309] x86/PAT: Configuration [0-7]: WB  WC  UC- UC  WB  WP  UC- WT  
[    0.000381] last_pfn = 0xdd000 max_arch_pfn = 0x400000000
[    0.000395] Using GB pages for direct mapping
[    0.000396] BRK [0x202a01000, 0x202a01fff] PGTABLE
[    0.000398] BRK [0x202a02000, 0x202a02fff] PGTABLE
[    0.000398] BRK [0x202a03000, 0x202a03fff] PGTABLE
[    0.000429] BRK [0x202a04000, 0x202a04fff] PGTABLE
[    0.000430] BRK [0x202a05000, 0x202a05fff] PGTABLE
[    0.000567] BRK [0x202a06000, 0x202a06fff] PGTABLE
[    0.000592] BRK [0x202a07000, 0x202a07fff] PGTABLE
[    0.000621] BRK [0x202a08000, 0x202a08fff] PGTABLE
[    0.000652] BRK [0x202a09000, 0x202a09fff] PGTABLE
[    0.000684] BRK [0x202a0a000, 0x202a0afff] PGTABLE
[    0.000735] BRK [0x202a0b000, 0x202a0bfff] PGTABLE
[    0.000780] Secure boot could not be determined
[    0.000780] RAMDISK: [mem 0x36397000-0x371c2fff]
[    0.000784] ACPI: Early table checksum verification disabled
[    0.000786] ACPI: RSDP 0x00000000DCFFE014 000024 (v02 FUJ   )
[    0.000789] ACPI: XSDT 0x00000000DCFFE170 0000BC (v01 FUJ    PC       00111000 FUJ  00000001)
[    0.000793] ACPI: FACP 0x00000000DCFFA000 00010C (v05 FUJ    PC       00111000 FUJ  00000001)
[    0.000797] ACPI: DSDT 0x00000000DCFEB000 00BD62 (v02 FUJ    FJNBB35  00111000 INTL 20120711)
[    0.000799] ACPI: FACS 0x00000000DCF9B000 000040
[    0.000801] ACPI: SSDT 0x00000000DCFFD000 000880 (v01 FUJ    SataAhci 00000001 INTL 20120711)
[    0.000803] ACPI: ASF! 0x00000000DCFFC000 0000A5 (v32 FUJ    PC       00111000 FUJ  00000001)
[    0.000805] ACPI: HPET 0x00000000DCFF9000 000038 (v01 FUJ    PC       00111000 FUJ  00000001)
[    0.000807] ACPI: APIC 0x00000000DCFF8000 000098 (v01 FUJ    PC       00111000 FUJ  00000001)
[    0.000809] ACPI: MCFG 0x00000000DCFF7000 00003C (v01 FUJ    PC       00111000 FUJ  00000001)
[    0.000811] ACPI: SSDT 0x00000000DCFE8000 002028 (v01 FUJ    PtidDevc 00111000 INTL 20120711)
[    0.000813] ACPI: SSDT 0x00000000DCFE7000 000035 (v01 FUJ    Sata0Ide 00111000 INTL 20120711)
[    0.000815] ACPI: SSDT 0x00000000DCFE6000 000180 (v01 FUJ    Sata1Ide 00111000 INTL 20120711)
[    0.000817] ACPI: SSDT 0x00000000DCFE5000 000539 (v01 FUJ    Cpu0Ist  00111000 INTL 20120711)
[    0.000819] ACPI: SSDT 0x00000000DCFE4000 000AD8 (v01 FUJ    CpuPm    00111000 INTL 20120711)
[    0.000821] ACPI: SSDT 0x00000000DCFE0000 00341F (v01 FUJ    SaSsdt   00111000 INTL 20120711)
[    0.000823] ACPI: UEFI 0x00000000DCFDF000 000042 (v01 FUJ    PC       00111000 FUJ  00000001)
[    0.000825] ACPI: POAT 0x00000000DCF76000 000055 (v03 FUJ    PC       00111000 FUJ  00000001)
[    0.000827] ACPI: BATB 0x00000000DCFDE000 000046 (v01 FUJ    PC       00111000 FUJ  00000001)
[    0.000829] ACPI: FPDT 0x00000000DCFDD000 000064 (v01 FUJ    PC       00111000 FUJ  00000001)
[    0.000831] ACPI: SLIC 0x00000000DCFDC000 000176 (v01 FUJ    PC       01110000 FUJ  00000001)
[    0.000833] ACPI: UEFI 0x00000000DCFDB000 0002BA (v01 FUJ    PC       00111000 FUJ  00000001)
[    0.000835] ACPI: BGRT 0x00000000DCFDA000 000038 (v01 FUJ    PC       00111000 FUJ  00000001)
[    0.000841] ACPI: Local APIC address 0xfee00000
[    0.000855] Zone ranges:
[    0.000856]   DMA      [mem 0x0000000000001000-0x0000000000ffffff]
[    0.000857]   DMA32    [mem 0x0000000001000000-0x00000000ffffffff]
[    0.000858]   Normal   [mem 0x0000000100000000-0x000000021f5fffff]
[    0.000859] Movable zone start for each node
[    0.000859] Early memory node ranges
[    0.000860]   node   0: [mem 0x0000000000001000-0x0000000000057fff]
[    0.000860]   node   0: [mem 0x0000000000059000-0x0000000000068fff]
[    0.000861]   node   0: [mem 0x000000000006c000-0x000000000008bfff]
[    0.000861]   node   0: [mem 0x0000000000100000-0x00000000895d4fff]
[    0.000862]   node   0: [mem 0x00000000897d7000-0x00000000db02efff]
[    0.000863]   node   0: [mem 0x00000000dcfff000-0x00000000dcffffff]
[    0.000863]   node   0: [mem 0x0000000100000000-0x000000021f5fffff]
[    0.001063] Zeroed struct page in unavailable ranges: 21067 pages
[    0.001064] Initmem setup node 0 [mem 0x0000000000001000-0x000000021f5fffff]
[    0.001065] On node 0 totalpages: 2073525
[    0.001066]   DMA zone: 64 pages used for memmap
[    0.001066]   DMA zone: 70 pages reserved
[    0.001067]   DMA zone: 3975 pages, LIFO batch:0
[    0.001106]   DMA32 zone: 13945 pages used for memmap
[    0.001106]   DMA32 zone: 892462 pages, LIFO batch:63
[    0.012075]   Normal zone: 18392 pages used for memmap
[    0.012076]   Normal zone: 1177088 pages, LIFO batch:63
[    0.025729] Reserving Intel graphics memory at [mem 0xdda00000-0xdf9fffff]
[    0.025799] ACPI: PM-Timer IO Port: 0x1808
[    0.025800] ACPI: Local APIC address 0xfee00000
[    0.025806] ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
[    0.025806] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
[    0.025816] IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-23
[    0.025818] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    0.025819] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[    0.025820] ACPI: IRQ0 used by override.
[    0.025821] ACPI: IRQ9 used by override.
[    0.025822] Using ACPI (MADT) for SMP configuration information
[    0.025823] ACPI: HPET id: 0x8086a301 base: 0xfed00000
[    0.025826] smpboot: 8 Processors exceeds NR_CPUS limit of 4
[    0.025826] smpboot: Allowing 4 CPUs, 0 hotplug CPUs
[    0.025831] [mem 0xdfa00000-0xf80f7fff] available for PCI devices
[    0.025835] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns
[    0.025838] setup_percpu: NR_CPUS:4 nr_cpumask_bits:4 nr_cpu_ids:4 nr_node_ids:1
[    0.026104] percpu: Embedded 44 pages/cpu s142232 r8192 d29800 u524288
[    0.026108] pcpu-alloc: s142232 r8192 d29800 u524288 alloc=1*2097152
[    0.026108] pcpu-alloc: [0] 0 1 2 3 
[    0.026121] Built 1 zonelists, mobility grouping on.  Total pages: 2041054
[    0.026122] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-5.5.0-00849-gb0be0eff1a5a root=UUID=9e8cf5b2-8d9b-464c-870f-3ffc818ef7db ro quiet splash lsm=apparmor spectre_v2=auto acpi_mask_gpe=0x13 libata.noacpi=1 vt.handoff=1
[    0.026941] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, linear)
[    0.027297] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, linear)
[    0.027332] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.061216] Memory: 7848264K/8294100K available (12290K kernel code, 481K rwdata, 3496K rodata, 920K init, 544K bss, 445836K reserved, 0K cma-reserved)
[    0.061316] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.061322] Kernel/User page tables isolation: enabled
[    0.061368] rcu: Hierarchical RCU implementation.
[    0.061369] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies.
[    0.061378] NR_IRQS: 4352, nr_irqs: 456, preallocated irqs: 16
[    0.061602] random: get_random_bytes called from start_kernel+0x2f6/0x4b2 with crng_init=0
[    0.061620] Console: colour dummy device 80x25
[    0.061625] printk: console [tty0] enabled
[    0.061628] ACPI: Core revision 20200110
[    0.061765] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 133484882848 ns
[    0.061778] APIC: Switch to symmetric I/O mode setup
[    0.062159] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[    0.081779] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x23f38549f16, max_idle_ns: 440795259171 ns
[    0.081783] Calibrating delay loop (skipped), value calculated using timer frequency.. 4988.23 BogoMIPS (lpj=9976472)
[    0.081785] pid_max: default: 32768 minimum: 301
[    0.090725] LSM: Security Framework initializing
[    0.090746] AppArmor: AppArmor initialized
[    0.090778] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, linear)
[    0.090800] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, linear)
[    0.090813] *** VALIDATE tmpfs ***
[    0.090921] *** VALIDATE proc ***
[    0.090961] *** VALIDATE cgroup1 ***
[    0.090963] *** VALIDATE cgroup2 ***
[    0.090999] mce: CPU0: Thermal monitoring enabled (TM1)
[    0.091010] process: using mwait in idle threads
[    0.091012] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024
[    0.091012] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4
[    0.091015] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization
[    0.091017] Spectre V2 : auto selected on command line.
[    0.091018] Spectre V2 : Mitigation: Full generic retpoline
[    0.091018] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch
[    0.091019] Spectre V2 : Enabling Restricted Speculation for firmware calls
[    0.091020] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier
[    0.091021] Spectre V2 : User space: Mitigation: STIBP via seccomp and prctl
[    0.091022] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl and seccomp
[    0.091024] MDS: Mitigation: Clear CPU buffers
[    0.091181] Freeing SMP alternatives memory: 36K
[    0.091327] TSC deadline timer enabled
[    0.091330] smpboot: CPU0: Intel(R) Core(TM) i5-4200M CPU @ 2.50GHz (family: 0x6, model: 0x3c, stepping: 0x3)
[    0.091401] Performance Events: PEBS fmt2+, Haswell events, 16-deep LBR, full-width counters, Intel PMU driver.
[    0.091418] ... version:                3
[    0.091419] ... bit width:              48
[    0.091419] ... generic registers:      4
[    0.091420] ... value mask:             0000ffffffffffff
[    0.091420] ... max period:             00007fffffffffff
[    0.091420] ... fixed-purpose events:   3
[    0.091421] ... event mask:             000000070000000f
[    0.091452] rcu: Hierarchical SRCU implementation.
[    0.091507] smp: Bringing up secondary CPUs ...
[    0.091561] x86: Booting SMP configuration:
[    0.091561] .... node  #0, CPUs:      #1
[    0.092505] MDS CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details.
[    0.092505]  #2 #3
[    0.092505] smp: Brought up 1 node, 4 CPUs
[    0.092505] smpboot: Max logical packages: 2
[    0.092505] smpboot: Total of 4 processors activated (19952.94 BogoMIPS)
[    0.093960] devtmpfs: initialized
[    0.093962] PM: Registering ACPI NVS region [mem 0xdce8f000-0xdcf9efff] (1114112 bytes)
[    0.093962] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.093962] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
[    0.093962] thermal_sys: Registered thermal governor 'step_wise'
[    0.093962] thermal_sys: Registered thermal governor 'user_space'
[    0.093963] NET: Registered protocol family 16
[    0.094052] audit: initializing netlink subsys (disabled)
[    0.094060] audit: type=2000 audit(1580567367.032:1): state=initialized audit_enabled=0 res=1
[    0.094060] cpuidle: using governor menu
[    0.094060] ACPI: bus type PCI registered
[    0.094060] dca service started, version 1.12.1
[    0.094060] PCI: MMCONFIG for domain 0000 [bus 00-3f] at [mem 0xf8000000-0xfbffffff] (base 0xf8000000)
[    0.094060] PCI: not using MMCONFIG
[    0.094060] PCI: Using configuration type 1 for base access
[    0.094060] core: PMU erratum BJ122, BV98, HSD29 worked around, HT is on
[    0.094060] ENERGY_PERF_BIAS: Set to 'normal', was 'performance'
[    0.095091] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[    0.095091] cryptd: max_cpu_qlen set to 1000
[    0.095091] ACPI: Added _OSI(Module Device)
[    0.095091] ACPI: Added _OSI(Processor Device)
[    0.095091] ACPI: Added _OSI(3.0 _SCP Extensions)
[    0.095091] ACPI: Added _OSI(Processor Aggregator Device)
[    0.095091] ACPI: Added _OSI(Linux-Dell-Video)
[    0.095091] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio)
[    0.095091] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics)
[    0.107383] ACPI: 8 ACPI AML tables successfully acquired and loaded
[    0.107383] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
[    0.107469] ACPI: Dynamic OEM Table Load:
[    0.107475] ACPI: SSDT 0xFFFF9FB0D6328C00 0003D3 (v01 FUJ    Cpu0Cst  00003001 INTL 20120711)
[    0.108216] ACPI: Dynamic OEM Table Load:
[    0.108221] ACPI: SSDT 0xFFFF9FB0D62CE800 0005AA (v01 PmRef  ApIst    00003000 INTL 20120711)
[    0.108986] ACPI: Dynamic OEM Table Load:
[    0.108990] ACPI: SSDT 0xFFFF9FB0D62C6800 000119 (v01 PmRef  ApCst    00003000 INTL 20120711)
[    0.110139] ACPI: EC: EC started
[    0.110140] ACPI: EC: interrupt blocked
[    0.110395] ACPI: \_SB_.PCI0.LPCB.H_EC: Used as first EC
[    0.110397] ACPI: \_SB_.PCI0.LPCB.H_EC: GPE=0x17, IRQ=-1, EC_CMD/EC_SC=0x66, EC_DATA=0x62
[    0.110398] ACPI: \_SB_.PCI0.LPCB.H_EC: Boot DSDT EC used to handle transactions
[    0.110399] ACPI: Interpreter enabled
[    0.110424] ACPI: (supports S0 S3 S5)
[    0.110425] ACPI: Using IOAPIC for interrupt routing
[    0.110446] PCI: MMCONFIG for domain 0000 [bus 00-3f] at [mem 0xf8000000-0xfbffffff] (base 0xf8000000)
[    0.110830] PCI: MMCONFIG at [mem 0xf8000000-0xfbffffff] reserved in ACPI motherboard resources
[    0.110836] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[    0.111037] ACPI: Masking GPE 0x13.
[    0.111052] ACPI: Enabled 8 GPEs in block 00 to 3F
[    0.117939] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-3e])
[    0.117943] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig Segments MSI HPX-Type3]
[    0.118067] acpi PNP0A08:00: _OSC failed (AE_ERROR)
[    0.118259] PCI host bridge to bus 0000:00
[    0.118261] pci_bus 0000:00: root bus resource [io  0x0000-0x0cf7 window]
[    0.118262] pci_bus 0000:00: root bus resource [io  0x0d00-0xffff window]
[    0.118263] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
[    0.118264] pci_bus 0000:00: root bus resource [mem 0xdfa00000-0xfeafffff window]
[    0.118265] pci_bus 0000:00: root bus resource [mem 0xff700100-0xff7001ff window]
[    0.118266] pci_bus 0000:00: root bus resource [bus 00-3e]
[    0.118274] pci 0000:00:00.0: [8086:0c04] type 00 class 0x060000
[    0.118425] pci 0000:00:01.0: [8086:0c01] type 01 class 0x060400
[    0.118461] pci 0000:00:01.0: PME# supported from D0 D3hot D3cold
[    0.118631] pci 0000:00:02.0: [8086:0416] type 00 class 0x030000
[    0.118640] pci 0000:00:02.0: reg 0x10: [mem 0xf0000000-0xf03fffff 64bit]
[    0.118645] pci 0000:00:02.0: reg 0x18: [mem 0xe0000000-0xefffffff 64bit pref]
[    0.118649] pci 0000:00:02.0: reg 0x20: [io  0x4000-0x403f]
[    0.118792] pci 0000:00:03.0: [8086:0c0c] type 00 class 0x040300
[    0.118800] pci 0000:00:03.0: reg 0x10: [mem 0xf0710000-0xf0713fff 64bit]
[    0.118967] pci 0000:00:14.0: [8086:8c31] type 00 class 0x0c0330
[    0.118986] pci 0000:00:14.0: reg 0x10: [mem 0xf0700000-0xf070ffff 64bit]
[    0.119042] pci 0000:00:14.0: PME# supported from D3hot D3cold
[    0.119178] pci 0000:00:16.0: [8086:8c3a] type 00 class 0x078000
[    0.119197] pci 0000:00:16.0: reg 0x10: [mem 0xf0719000-0xf071900f 64bit]
[    0.119256] pci 0000:00:16.0: PME# supported from D0 D3hot D3cold
[    0.119391] pci 0000:00:1b.0: [8086:8c20] type 00 class 0x040300
[    0.119408] pci 0000:00:1b.0: reg 0x10: [mem 0xf0714000-0xf0717fff 64bit]
[    0.119474] pci 0000:00:1b.0: PME# supported from D0 D3hot D3cold
[    0.119608] pci 0000:00:1c.0: [8086:8c10] type 01 class 0x060400
[    0.119678] pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold
[    0.119847] pci 0000:00:1c.2: [8086:8c14] type 01 class 0x060400
[    0.119918] pci 0000:00:1c.2: PME# supported from D0 D3hot D3cold
[    0.120085] pci 0000:00:1c.5: [8086:8c1a] type 01 class 0x060400
[    0.120156] pci 0000:00:1c.5: PME# supported from D0 D3hot D3cold
[    0.120324] pci 0000:00:1f.0: [8086:8c49] type 00 class 0x060100
[    0.120554] pci 0000:00:1f.2: [8086:8c03] type 00 class 0x010601
[    0.120569] pci 0000:00:1f.2: reg 0x10: [io  0x4088-0x408f]
[    0.120576] pci 0000:00:1f.2: reg 0x14: [io  0x4094-0x4097]
[    0.120583] pci 0000:00:1f.2: reg 0x18: [io  0x4080-0x4087]
[    0.120590] pci 0000:00:1f.2: reg 0x1c: [io  0x4090-0x4093]
[    0.120597] pci 0000:00:1f.2: reg 0x20: [io  0x4060-0x407f]
[    0.120604] pci 0000:00:1f.2: reg 0x24: [mem 0xf071c000-0xf071c7ff]
[    0.120638] pci 0000:00:1f.2: PME# supported from D3hot
[    0.120767] pci 0000:00:1f.3: [8086:8c22] type 00 class 0x0c0500
[    0.120783] pci 0000:00:1f.3: reg 0x10: [mem 0xf0718000-0xf07180ff 64bit]
[    0.120802] pci 0000:00:1f.3: reg 0x20: [io  0xefa0-0xefbf]
[    0.120949] pci 0000:00:1f.6: [8086:8c24] type 00 class 0x118000
[    0.120969] pci 0000:00:1f.6: reg 0x10: [mem 0xf071b000-0xf071bfff 64bit]
[    0.121159] pci 0000:00:01.0: PCI bridge to [bus 01]
[    0.121193] pci 0000:00:1c.0: PCI bridge to [bus 02]
[    0.121265] pci 0000:03:00.0: [8086:08b1] type 00 class 0x028000
[    0.121337] pci 0000:03:00.0: reg 0x10: [mem 0xf0600000-0xf0601fff 64bit]
[    0.121599] pci 0000:03:00.0: PME# supported from D0 D3hot D3cold
[    0.121704] pci 0000:00:1c.2: PCI bridge to [bus 03]
[    0.121709] pci 0000:00:1c.2:   bridge window [mem 0xf0600000-0xf06fffff]
[    0.121759] pci 0000:04:00.0: [10ec:8168] type 00 class 0x020000
[    0.121786] pci 0000:04:00.0: reg 0x10: [io  0x3000-0x30ff]
[    0.121814] pci 0000:04:00.0: reg 0x18: [mem 0xf0500000-0xf0500fff 64bit]
[    0.121831] pci 0000:04:00.0: reg 0x20: [mem 0xf0400000-0xf0403fff 64bit pref]
[    0.121926] pci 0000:04:00.0: supports D1 D2
[    0.121927] pci 0000:04:00.0: PME# supported from D0 D1 D2 D3hot D3cold
[    0.122000] pci 0000:00:1c.5: PCI bridge to [bus 04]
[    0.122003] pci 0000:00:1c.5:   bridge window [io  0x3000-0x3fff]
[    0.122006] pci 0000:00:1c.5:   bridge window [mem 0xf0500000-0xf05fffff]
[    0.122011] pci 0000:00:1c.5:   bridge window [mem 0xf0400000-0xf04fffff 64bit pref]
[    0.122029] pci_bus 0000:00: on NUMA node 0
[    0.122522] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[    0.122562] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[    0.122600] ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[    0.122638] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[    0.122675] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[    0.122713] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[    0.122750] ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[    0.122787] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[    0.123011] ACPI: EC: interrupt unblocked
[    0.123018] ACPI: EC: event unblocked
[    0.123025] ACPI: \_SB_.PCI0.LPCB.H_EC: GPE=0x17, IRQ=-1, EC_CMD/EC_SC=0x66, EC_DATA=0x62
[    0.123026] ACPI: \_SB_.PCI0.LPCB.H_EC: Boot DSDT EC used to handle transactions and events
[    0.123061] iommu: Default domain type: Translated 
[    0.123121] SCSI subsystem initialized
[    0.123127] libata version 3.00 loaded.
[    0.123138] ACPI: bus type USB registered
[    0.123149] usbcore: registered new interface driver usbfs
[    0.123154] usbcore: registered new interface driver hub
[    0.125783] usbcore: registered new device driver usb
[    0.125784] Registered efivars operations
[    0.125784] Advanced Linux Sound Architecture Driver Initialized.
[    0.125784] PCI: Using ACPI for IRQ routing
[    0.125784] PCI: pci_cache_line_size set to 64 bytes
[    0.125784] e820: reserve RAM buffer [mem 0x00058000-0x0005ffff]
[    0.125784] e820: reserve RAM buffer [mem 0x00069000-0x0006ffff]
[    0.125784] e820: reserve RAM buffer [mem 0x0008c000-0x0008ffff]
[    0.125784] e820: reserve RAM buffer [mem 0x895d5000-0x8bffffff]
[    0.125784] e820: reserve RAM buffer [mem 0xdb02f000-0xdbffffff]
[    0.125784] e820: reserve RAM buffer [mem 0xdd000000-0xdfffffff]
[    0.125784] e820: reserve RAM buffer [mem 0x21f600000-0x21fffffff]
[    0.125784] NetLabel: Initializing
[    0.125784] NetLabel:  domain hash size = 128
[    0.125784] NetLabel:  protocols = UNLABELED CIPSOv4 CALIPSO
[    0.125784] NetLabel:  unlabeled traffic allowed by default
[    0.125784] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0, 0, 0, 0, 0, 0
[    0.125784] hpet0: 8 comparators, 64-bit 14.318180 MHz counter
[    0.129782] clocksource: Switched to clocksource tsc-early
[    0.129788] *** VALIDATE ramfs ***
[    0.129788] *** VALIDATE hugetlbfs ***
[    0.129788] AppArmor: AppArmor Filesystem Enabled
[    0.129788] pnp: PnP ACPI init
[    0.129788] system 00:00: [io  0x0680-0x069f] has been reserved
[    0.129788] system 00:00: [io  0xffff] has been reserved
[    0.129788] system 00:00: [io  0xffff] has been reserved
[    0.129788] system 00:00: [io  0xffff] has been reserved
[    0.129788] system 00:00: [io  0x1800-0x18fe] has been reserved
[    0.129788] system 00:00: [io  0x164e-0x164f] has been reserved
[    0.129788] system 00:00: Plug and Play ACPI device, IDs PNP0c02 (active)
[    0.129788] system 00:01: [io  0x0800-0x087f] has been reserved
[    0.129788] system 00:01: Plug and Play ACPI device, IDs PNP0c02 (active)
[    0.129788] pnp 00:02: Plug and Play ACPI device, IDs PNP0b00 (active)
[    0.129788] system 00:03: [io  0x1854-0x1857] has been reserved
[    0.129788] system 00:03: Plug and Play ACPI device, IDs INT3f0d PNP0c02 (active)
[    0.129788] pnp 00:04: Plug and Play ACPI device, IDs FUJ0300 PNP0303 (active)
[    0.129788] pnp 00:05: Plug and Play ACPI device, IDs SYN1f08 PNP0f13 (active)
[    0.129788] system 00:06: [mem 0xfed1c000-0xfed1ffff] has been reserved
[    0.129788] system 00:06: [mem 0xfed10000-0xfed17fff] has been reserved
[    0.129788] system 00:06: [mem 0xfed18000-0xfed18fff] has been reserved
[    0.129788] system 00:06: [mem 0xfed19000-0xfed19fff] has been reserved
[    0.129788] system 00:06: [mem 0xf8000000-0xfbffffff] could not be reserved
[    0.129788] system 00:06: [mem 0xfed20000-0xfed3ffff] has been reserved
[    0.129788] system 00:06: [mem 0xfed90000-0xfed93fff] has been reserved
[    0.129788] system 00:06: [mem 0xfed45000-0xfed8ffff] has been reserved
[    0.129788] system 00:06: [mem 0xff000000-0xffffffff] could not be reserved
[    0.129788] system 00:06: [mem 0xfee00000-0xfeefffff] has been reserved
[    0.129788] system 00:06: [mem 0xdfa10000-0xdfa1ffff] has been reserved
[    0.129788] system 00:06: Plug and Play ACPI device, IDs PNP0c02 (active)
[    0.129788] pnp: PnP ACPI: found 7 devices
[    0.136050] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns
[    0.136057] pci 0000:00:01.0: PCI bridge to [bus 01]
[    0.136063] pci 0000:00:1c.0: PCI bridge to [bus 02]
[    0.136072] pci 0000:00:1c.2: PCI bridge to [bus 03]
[    0.136077] pci 0000:00:1c.2:   bridge window [mem 0xf0600000-0xf06fffff]
[    0.136084] pci 0000:00:1c.5: PCI bridge to [bus 04]
[    0.136086] pci 0000:00:1c.5:   bridge window [io  0x3000-0x3fff]
[    0.136090] pci 0000:00:1c.5:   bridge window [mem 0xf0500000-0xf05fffff]
[    0.136094] pci 0000:00:1c.5:   bridge window [mem 0xf0400000-0xf04fffff 64bit pref]
[    0.136100] pci_bus 0000:00: resource 4 [io  0x0000-0x0cf7 window]
[    0.136101] pci_bus 0000:00: resource 5 [io  0x0d00-0xffff window]
[    0.136102] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window]
[    0.136103] pci_bus 0000:00: resource 7 [mem 0xdfa00000-0xfeafffff window]
[    0.136104] pci_bus 0000:00: resource 8 [mem 0xff700100-0xff7001ff window]
[    0.136105] pci_bus 0000:03: resource 1 [mem 0xf0600000-0xf06fffff]
[    0.136106] pci_bus 0000:04: resource 0 [io  0x3000-0x3fff]
[    0.136107] pci_bus 0000:04: resource 1 [mem 0xf0500000-0xf05fffff]
[    0.136108] pci_bus 0000:04: resource 2 [mem 0xf0400000-0xf04fffff 64bit pref]
[    0.136191] NET: Registered protocol family 2
[    0.136269] tcp_listen_portaddr_hash hash table entries: 4096 (order: 4, 65536 bytes, linear)
[    0.136281] TCP established hash table entries: 65536 (order: 7, 524288 bytes, linear)
[    0.136357] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes, linear)
[    0.136510] TCP: Hash tables configured (established 65536 bind 65536)
[    0.136534] UDP hash table entries: 4096 (order: 5, 131072 bytes, linear)
[    0.136554] UDP-Lite hash table entries: 4096 (order: 5, 131072 bytes, linear)
[    0.136604] NET: Registered protocol family 1
[    0.136712] Unpacking initramfs...
[    0.300568] Freeing initrd memory: 14512K
[    0.300576] PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
[    0.300577] software IO TLB: mapped [mem 0xc9907000-0xcd907000] (64MB)
[    0.300879] Initialise system trusted keyrings
[    0.300914] workingset: timestamp_bits=46 max_order=21 bucket_order=0
[    0.301776] fuse: init (API version 7.31)
[    0.301791] *** VALIDATE fuse ***
[    0.301793] *** VALIDATE fuse ***
[    0.306893] Key type asymmetric registered
[    0.306894] Asymmetric key parser 'x509' registered
[    0.306903] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
[    0.307459] intel_idle: MWAIT substates: 0x42120
[    0.307460] intel_idle: v0.4.1 model 0x3C
[    0.307619] intel_idle: lapic_timer_reliable_states 0xffffffff
[    0.307769] ACPI: AC Adapter [ADP1] (on-line)
[    0.307826] input: Lid Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input0
[    0.307839] ACPI: Lid Switch [LID0]
[    0.307861] input: Power Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input1
[    0.307874] ACPI: Power Button [PWRB]
[    0.307896] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input2
[    0.307921] ACPI: Power Button [PWRF]
[    0.308352] ACPI: Invalid active0 threshold
[    0.308419] thermal LNXTHERM:00: registered as thermal_zone0
[    0.308420] ACPI: Thermal Zone [TZ00] (28 C)
[    0.308580] thermal LNXTHERM:01: registered as thermal_zone1
[    0.308581] ACPI: Thermal Zone [TZ01] (30 C)
[    0.308607] ioatdma: Intel(R) QuickData Technology Driver 5.00
[    0.308856] Linux agpgart interface v0.103
[    0.309344] battery: ACPI: Battery Slot [BAT0] (battery present)
[    0.317843] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    0.317844] [drm] Driver supports precise vblank timestamp query.
[    0.339055] [drm] Initialized i915 1.6.0 20191101 for 0000:00:02.0 on minor 0
[    0.342905] ACPI: Video Device [GFX0] (multi-head: yes  rom: no  post: no)
[    0.343120] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input3
[    0.344042] loop: module loaded
[    0.344052] usbcore: registered new interface driver rtsx_usb
[    0.344093] ACPI Warning: SystemIO range 0x0000000000001828-0x000000000000182F conflicts with OpRegion 0x0000000000001800-0x000000000000187F (\PMIO) (20200110/utaddress-213)
[    0.344097] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[    0.344099] ACPI Warning: SystemIO range 0x0000000000000840-0x000000000000084F conflicts with OpRegion 0x0000000000000800-0x0000000000000BFF (\GPR) (20200110/utaddress-213)
[    0.344102] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[    0.344102] ACPI Warning: SystemIO range 0x0000000000000830-0x000000000000083F conflicts with OpRegion 0x0000000000000800-0x000000000000083F (\GPRL) (20200110/utaddress-213)
[    0.344104] ACPI Warning: SystemIO range 0x0000000000000830-0x000000000000083F conflicts with OpRegion 0x0000000000000800-0x0000000000000BFF (\GPR) (20200110/utaddress-213)
[    0.344106] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[    0.344106] ACPI Warning: SystemIO range 0x0000000000000800-0x000000000000082F conflicts with OpRegion 0x0000000000000800-0x000000000000083F (\GPRL) (20200110/utaddress-213)
[    0.344108] ACPI Warning: SystemIO range 0x0000000000000800-0x000000000000082F conflicts with OpRegion 0x0000000000000800-0x0000000000000BFF (\GPR) (20200110/utaddress-213)
[    0.344110] ACPI Warning: SystemIO range 0x0000000000000800-0x000000000000082F conflicts with OpRegion 0x0000000000000810-0x0000000000000813 (\IO_D) (20200110/utaddress-213)
[    0.344112] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[    0.344112] lpc_ich: Resource conflict(s) found affecting gpio_ich
[    0.344167] ahci 0000:00:1f.2: version 3.0
[    0.344296] ahci 0000:00:1f.2: SSS flag set, parallel bus scan disabled
[    0.344319] ahci 0000:00:1f.2: AHCI 0001.0300 32 slots 4 ports 3 Gbps 0x34 impl SATA mode
[    0.344321] ahci 0000:00:1f.2: flags: 64bit ncq stag led clo pio slum part ems sxs apst 
[    0.366269] scsi host0: ahci
[    0.366469] scsi host1: ahci
[    0.366570] scsi host2: ahci
[    0.366643] scsi host3: ahci
[    0.366708] scsi host4: ahci
[    0.366781] scsi host5: ahci
[    0.366811] ata1: DUMMY
[    0.366812] ata2: DUMMY
[    0.366814] ata3: SATA max UDMA/133 abar m2048@0xf071c000 port 0xf071c200 irq 29
[    0.366815] ata4: DUMMY
[    0.366817] ata5: SATA max UDMA/133 abar m2048@0xf071c000 port 0xf071c300 irq 29
[    0.366819] ata6: SATA max UDMA/133 abar m2048@0xf071c000 port 0xf071c380 irq 29
[    0.366973] r8169 0000:04:00.0: Mem-Wr-Inval unavailable
[    0.368285] libphy: r8169: probed
[    0.368497] r8169 0000:04:00.0 eth0: RTL8168evl/8111evl, e0:18:77:c1:80:1d, XID 2c9, IRQ 30
[    0.368498] r8169 0000:04:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
[    0.368512] Intel(R) Wireless WiFi driver for Linux
[    0.368513] Copyright(c) 2003- 2015 Intel Corporation
[    0.368871] xhci_hcd 0000:00:14.0: can't derive routing for PCI INT A
[    0.368872] xhci_hcd 0000:00:14.0: PCI INT A: not connected
[    0.368896] xhci_hcd 0000:00:14.0: xHCI Host Controller
[    0.368900] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 1
[    0.369972] xhci_hcd 0000:00:14.0: hcc params 0x200077c1 hci version 0x100 quirks 0x0000000000009810
[    0.370275] iwlwifi 0000:03:00.0: loaded firmware version 17.3216344376.0 op_mode iwlmvm
[    0.370287] iwlwifi 0000:03:00.0: Detected Intel(R) Wireless N 7260, REV=0x144
[    0.370347] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.05
[    0.370349] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.370350] usb usb1: Product: xHCI Host Controller
[    0.370352] usb usb1: Manufacturer: Linux 5.5.0-00849-gb0be0eff1a5a xhci-hcd
[    0.370353] usb usb1: SerialNumber: 0000:00:14.0
[    0.370461] hub 1-0:1.0: USB hub found
[    0.370482] hub 1-0:1.0: 14 ports detected
[    0.371768] xhci_hcd 0000:00:14.0: xHCI Host Controller
[    0.371772] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 2
[    0.371774] xhci_hcd 0000:00:14.0: Host supports USB 3.0 SuperSpeed
[    0.371804] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.05
[    0.371805] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.371806] usb usb2: Product: xHCI Host Controller
[    0.371807] usb usb2: Manufacturer: Linux 5.5.0-00849-gb0be0eff1a5a xhci-hcd
[    0.371808] usb usb2: SerialNumber: 0000:00:14.0
[    0.371876] hub 2-0:1.0: USB hub found
[    0.371886] hub 2-0:1.0: 4 ports detected
[    0.372163] usbcore: registered new interface driver usblp
[    0.372173] usbcore: registered new interface driver usb-storage
[    0.372194] i8042: PNP: PS/2 Controller [PNP0303:PS2K,PNP0f13:PS2M] at 0x60,0x64 irq 1,12
[    0.374964] serio: i8042 KBD port at 0x60,0x64 irq 1
[    0.374966] serio: i8042 AUX port at 0x60,0x64 irq 12
[    0.375038] mousedev: PS/2 mouse device common for all mice
[    0.375399] intel_pstate: Intel P-state driver initializing
[    0.375580] EFI Variables Facility v0.08 2004-May-17
[    0.379693] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input4
[    0.381805] hid: raw HID events driver (C) Jiri Kosina
[    0.381835] usbcore: registered new interface driver usbhid
[    0.381836] usbhid: USB HID core driver
[    0.381897] fujitsu_laptop: ACPI: Fujitsu FUJ02E3 [FEXT]
[    0.382098] ACPI: \_SB_.FEXT: BTNI: [0x80001]
[    0.382121] input: Fujitsu FUJ02E3 as /devices/LNXSYSTM:00/LNXSYBUS:00/FUJ02E3:00/input/input6
[    0.382282] fujitsu_laptop: driver 0.6.0 successfully loaded
[    0.382526] usbcore: registered new interface driver snd-usb-audio
[    0.382641] NET: Registered protocol family 10
[    0.382781] Segment Routing with IPv6
[    0.382793] NET: Registered protocol family 17
[    0.382941] microcode: sig=0x306c3, pf=0x10, revision=0x27
[    0.382970] microcode: Microcode Update Driver: v2.2.
[    0.382972] IPI shorthand broadcast: enabled
[    0.382975] sched_clock: Marking stable (382745443, 222120)->(397472925, -14505362)
[    0.383006] Loading compiled-in X.509 certificates
[    0.386339] Loaded X.509 cert 'Build time autogenerated kernel key: 127e5e955fcf701bb9078627dd40f1f2d1736007'
[    0.386350] Key type ._fscrypt registered
[    0.386351] Key type .fscrypt registered
[    0.386362] AppArmor: AppArmor sha1 policy hashing enabled
[    0.386599] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[    0.388785] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[    0.388787] ALSA device list:
[    0.388788]   No soundcards found.
[    0.389846] iwlwifi 0000:03:00.0: base HW address: 80:19:34:4d:31:40
[    0.401637] snd_hda_codec_realtek hdaudioC1D0: ALC269VC: SKU not ready 0x909701f0
[    0.401890] snd_hda_codec_realtek hdaudioC1D0: autoconfig for ALC269VC: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker
[    0.401891] snd_hda_codec_realtek hdaudioC1D0:    speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[    0.401892] snd_hda_codec_realtek hdaudioC1D0:    hp_outs=1 (0x15/0x0/0x0/0x0/0x0)
[    0.401893] snd_hda_codec_realtek hdaudioC1D0:    mono: mono_out=0x0
[    0.401893] snd_hda_codec_realtek hdaudioC1D0:    inputs:
[    0.401894] snd_hda_codec_realtek hdaudioC1D0:      Mic=0x18
[    0.401895] snd_hda_codec_realtek hdaudioC1D0:      Internal Mic=0x12
[    0.407467] random: fast init done
[    0.408193] input: HDA Intel PCH Mic as /devices/pci0000:00/0000:00:1b.0/sound/card1/input8
[    0.408221] input: HDA Intel PCH Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card1/input9
[    0.593997] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
[    0.705855] usb 1-2: new low-speed USB device number 2 using xhci_hcd
[    0.862083] usb 1-2: New USB device found, idVendor=258a, idProduct=0001, bcdDevice= 1.00
[    0.862085] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[    0.862086] usb 1-2: Product: USB KEYBOARD
[    0.862087] usb 1-2: Manufacturer: SINO WEALTH
[    0.866939] input: SINO WEALTH USB KEYBOARD as /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.0/0003:258A:0001.0001/input/input10
[    0.926122] hid-generic 0003:258A:0001.0001: input,hidraw0: USB HID v1.10 Keyboard [SINO WEALTH USB KEYBOARD] on usb-0000:00:14.0-2/input0
[    0.932950] input: SINO WEALTH USB KEYBOARD System Control as /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.1/0003:258A:0001.0002/input/input11
[    0.990008] input: SINO WEALTH USB KEYBOARD Consumer Control as /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.1/0003:258A:0001.0002/input/input12
[    0.990327] hid-generic 0003:258A:0001.0002: input,hiddev0,hidraw1: USB HID v1.10 Device [SINO WEALTH USB KEYBOARD] on usb-0000:00:14.0-2/input1
[    1.117855] usb 1-5: new high-speed USB device number 3 using xhci_hcd
[    1.138261] usb 1-5: New USB device found, idVendor=0bda, idProduct=0129, bcdDevice=39.60
[    1.138262] usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    1.138263] usb 1-5: Product: USB2.0-CRW
[    1.138264] usb 1-5: Manufacturer: Generic
[    1.138265] usb 1-5: SerialNumber: 20100201396000000
[    1.265854] usb 1-6: new high-speed USB device number 4 using xhci_hcd
[    1.288336] usb 1-6: New USB device found, idVendor=05e3, idProduct=0605, bcdDevice= 6.0b
[    1.288338] usb 1-6: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[    1.288339] usb 1-6: Product: USB2.0 Hub
[    1.289425] hub 1-6:1.0: USB hub found
[    1.289730] hub 1-6:1.0: 4 ports detected
[    1.309853] tsc: Refined TSC clocksource calibration: 2494.227 MHz
[    1.309859] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x23f3ec29a0f, max_idle_ns: 440795214066 ns
[    1.309876] clocksource: Switched to clocksource tsc
[    1.313898] input: PS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input7
[    1.417856] usb 1-8: new full-speed USB device number 5 using xhci_hcd
[    1.502915] Console: switching to colour frame buffer device 170x48
[    1.502929] snd_hda_intel 0000:00:03.0: bound 0000:00:02.0 (ops 0xffffffff99c64ac0)
[    1.505732] snd_hda_codec_generic hdaudioC0D0: autoconfig for Generic: line_outs=0 (0x0/0x0/0x0/0x0/0x0) type:line
[    1.505734] snd_hda_codec_generic hdaudioC0D0:    speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[    1.505735] snd_hda_codec_generic hdaudioC0D0:    hp_outs=0 (0x0/0x0/0x0/0x0/0x0)
[    1.505736] snd_hda_codec_generic hdaudioC0D0:    mono: mono_out=0x0
[    1.505737] snd_hda_codec_generic hdaudioC0D0:    dig-out=0x3/0x0
[    1.505737] snd_hda_codec_generic hdaudioC0D0:    inputs:
[    1.506191] input: HDA Intel HDMI HDMI as /devices/pci0000:00/0000:00:03.0/sound/card0/input13
[    1.521691] i915 0000:00:02.0: fb0: i915drmfb frame buffer device
[    1.571128] usb 1-8: New USB device found, idVendor=8087, idProduct=07dc, bcdDevice= 0.01
[    1.571130] usb 1-8: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[    1.649856] usb 1-6.4: new full-speed USB device number 6 using xhci_hcd
[    1.752632] usb 1-6.4: New USB device found, idVendor=1130, idProduct=1620, bcdDevice= 1.40
[    1.752634] usb 1-6.4: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[    1.752635] usb 1-6.4: Product: USB  AUDIO  
[    1.759782] usb 1-6.4: Warning! Unlikely big volume range (=17152), cval->res is probably wrong.
[    1.759785] usb 1-6.4: [2] FU [PCM Playback Volume] ch = 2, val = 0/17152/1
[    1.760587] input: USB  AUDIO   as /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6.4/1-6.4:1.2/0003:1130:1620.0003/input/input14
[    1.817943] hid-generic 0003:1130:1620.0003: input,hidraw2: USB HID v1.10 Device [USB  AUDIO  ] on usb-0000:00:14.0-6.4/input2
[    1.837010] ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[    1.841683] ata3.00: ATAPI: TSSTcorp CDDVDW SU-208CB, FU01, max UDMA/100
[    1.846679] ata3.00: configured for UDMA/100
[    1.856713] scsi 2:0:0:0: CD-ROM            TSSTcorp CDDVDW SU-208CB  FU01 PQ: 0 ANSI: 5
[    1.919545] sr 2:0:0:0: [sr0] scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray
[    1.919547] cdrom: Uniform CD-ROM driver Revision: 3.20
[    1.919642] sr 2:0:0:0: Attached scsi CD-ROM sr0
[    1.919690] sr 2:0:0:0: Attached scsi generic sg0 type 5
[    2.233209] ata5: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[    2.349800] ata5.00: ATA-9: ST500LM000-1EJ162, SM36, max UDMA/133
[    2.349802] ata5.00: 976773168 sectors, multi 0: LBA48 NCQ (depth 32), AA
[    2.394181] ata5.00: configured for UDMA/133
[    2.394299] scsi 4:0:0:0: Direct-Access     ATA      ST500LM000-1EJ16 SM36 PQ: 0 ANSI: 5
[    2.394419] sd 4:0:0:0: Attached scsi generic sg1 type 0
[    2.394433] sd 4:0:0:0: [sda] 976773168 512-byte logical blocks: (500 GB/466 GiB)
[    2.394435] sd 4:0:0:0: [sda] 4096-byte physical blocks
[    2.394442] sd 4:0:0:0: [sda] Write Protect is off
[    2.394444] sd 4:0:0:0: [sda] Mode Sense: 00 3a 00 00
[    2.394456] sd 4:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[    2.398342]  sda: sda1 sda2
[    2.398510] sd 4:0:0:0: [sda] Attached SCSI disk
[    2.709256] ata6: SATA link down (SStatus 0 SControl 300)
[    2.709467] Freeing unused kernel image (initmem) memory: 920K
[    2.709492] Write protecting the kernel read-only data: 18432k
[    2.709838] Freeing unused kernel image (text/rodata gap) memory: 2044K
[    2.709975] Freeing unused kernel image (rodata/data gap) memory: 600K
[    2.710115] x86/mm: Checked W+X mappings: passed, no W+X pages found.
[    2.710116] x86/mm: Checking user space page tables
[    2.710146] x86/mm: Checked W+X mappings: passed, no W+X pages found.
[    2.710147] Run /init as init process
[    2.784663] r8169 0000:04:00.0 enp4s0: renamed from eth0
[    2.818201] iwlwifi 0000:03:00.0 wlp3s0: renamed from wlan0
[    3.100774] random: plymouthd: uninitialized urandom read (8 bytes read)
[    3.100869] random: plymouthd: uninitialized urandom read (8 bytes read)
[    3.181028] EXT4-fs (sda2): mounted filesystem with ordered data mode. Opts: (null)
[    3.351406] systemd[1]: Failed to insert module 'autofs4': No such file or directory
[    3.380217] systemd[1]: systemd 237 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2 default-hierarchy=hybrid)
[    3.398018] systemd[1]: Detected architecture x86-64.
[    3.426454] systemd[1]: Set hostname to <fichte>.
[    3.430037] systemd[1]: Couldn't move remaining userspace processes, ignoring: Input/output error
[    3.489295] systemd-fstab-generator[324]: Swap not supported, ignoring fstab swap entry for /swapfile.
[    3.693392] systemd[1]: File /lib/systemd/system/systemd-journald.service:35 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling.
[    3.693395] systemd[1]: Proceeding WITHOUT firewalling in effect! (This warning is only shown for the first loaded unit using IP firewalling.)
[    3.828918] random: systemd: uninitialized urandom read (16 bytes read)
[    3.828932] systemd[1]: Reached target Remote File Systems.
[    3.829163] systemd[1]: Created slice System Slice.
[    3.829228] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[    3.829279] systemd[1]: Listening on udev Kernel Socket.
[    3.858658] EXT4-fs (sda2): re-mounted. Opts: errors=remount-ro
[    3.931127] systemd-journald[340]: Received request to flush runtime journal from PID 1
[    4.127021] Bluetooth: Core ver 2.22
[    4.127031] NET: Registered protocol family 31
[    4.127032] Bluetooth: HCI device and connection manager initialized
[    4.127036] Bluetooth: HCI socket layer initialized
[    4.127037] Bluetooth: L2CAP socket layer initialized
[    4.127038] Bluetooth: SCO socket layer initialized
[    4.264359] usbcore: registered new interface driver btusb
[    4.276847] Bluetooth: hci0: read Intel version: 370710018002030d00
[    4.276851] Bluetooth: hci0: Intel Bluetooth firmware file: intel/ibt-hw-37.7.10-fw-1.80.2.3.d.bseq
[    4.407842] Bluetooth: hci0: unexpected event for opcode 0xfc2f
[    4.422871] Bluetooth: hci0: Intel firmware patch completed and activated
[    4.789634] audit: type=1400 audit(1580567371.720:2): apparmor="STATUS" operation="profile_load" profile="unconfined" name="libreoffice-senddoc" pid=581 comm="apparmor_parser"
[    4.790266] audit: type=1400 audit(1580567371.724:3): apparmor="STATUS" operation="profile_load" profile="unconfined" name="libreoffice-oopslash" pid=580 comm="apparmor_parser"
[    4.794227] audit: type=1400 audit(1580567371.728:4): apparmor="STATUS" operation="profile_load" profile="unconfined" name="libreoffice-xpdfimport" pid=583 comm="apparmor_parser"
[    4.801396] audit: type=1400 audit(1580567371.732:5): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/sbin/cups-browsed" pid=585 comm="apparmor_parser"
[    4.802260] audit: type=1400 audit(1580567371.736:6): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/snapd/snap-confine" pid=584 comm="apparmor_parser"
[    4.802263] audit: type=1400 audit(1580567371.736:7): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/snapd/snap-confine//mount-namespace-capture-helper" pid=584 comm="apparmor_parser"
[    4.802407] audit: type=1400 audit(1580567371.736:8): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/sbin/dhclient" pid=577 comm="apparmor_parser"
[    4.802412] audit: type=1400 audit(1580567371.736:9): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=577 comm="apparmor_parser"
[    4.802414] audit: type=1400 audit(1580567371.736:10): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-helper" pid=577 comm="apparmor_parser"
[    6.530519] RTL8211E Gigabit Ethernet r8169-400:00: attached PHY driver [RTL8211E Gigabit Ethernet] (mii_bus:phy_addr=r8169-400:00, irq=IGNORE)
[    6.722947] r8169 0000:04:00.0 enp4s0: Link is Down
[    8.658583] random: crng init done
[    8.658585] random: 7 urandom warning(s) missed due to ratelimiting
[    9.640069] r8169 0000:04:00.0 enp4s0: Link is Up - 1Gbps/Full - flow control rx/tx
[    9.640081] IPv6: ADDRCONF(NETDEV_CHANGE): enp4s0: link becomes ready
[    9.650028] r8169 0000:04:00.0 enp4s0: Link is Down
[   12.947316] r8169 0000:04:00.0 enp4s0: Link is Up - 100Mbps/Full - flow control off
[   21.824862] input: BluetoothMouse3600 Mouse as /devices/virtual/misc/uhid/0005:045E:0916.0004/input/input15
[   21.825085] input: BluetoothMouse3600 Consumer Control as /devices/virtual/misc/uhid/0005:045E:0916.0004/input/input16
[   21.825211] hid-generic 0005:045E:0916.0004: input,hidraw3: BLUETOOTH HID v1.10 Mouse [BluetoothMouse3600] on 80:19:34:4D:31:44

Re: EFI boot crash regression (was: Re: 5.6-### doesn't boot)

[Ard Biesheuvel]

On Sat, 1 Feb 2020 at 16:35, Jörg Otte <jrg.otte@gmail.com> wrote:
>
> Am Fr., 31. Jan. 2020 um 19:48 Uhr schrieb Dan Williams
> <dan.j.williams@intel.com>:
> >
> > On Fri, Jan 31, 2020 at 10:37 AM Ingo Molnar <mingo@kernel.org> wrote:
> > >
> > >
> > > (Cc:ed Dan and Ard)
> > >
> > > * Jörg Otte <jrg.otte@gmail.com> wrote:
> > >
> > > > Am Fr., 31. Jan. 2020 um 07:43 Uhr schrieb Ingo Molnar <mingo@kernel.org>:
> > > > >
> > > > >
> > > > > * Linus Torvalds <torvalds@linux-foundation.org> wrote:
> > > > >
> > > > > > On Thu, Jan 30, 2020 at 9:32 AM Jörg Otte <jrg.otte@gmail.com> wrote:
> > > > > > >
> > > > > > > my notebook doesn't boot with current kernel. Booting stops right after
> > > > > > > displaying "loading initial ramdisk..". No further displays.
> > > > > > > Also nothing is wriiten to the logs.
> > > > > > >
> > > > > > > last known good kernel is : vmlinuz-5.5.0-00849-gb0be0eff1a5a
> > > > > > > first known bad kernel is : vmlinuz-5.5.0-01154-gc677124e631d
> > > > > >
> > > > > > It would be lovely if you can bisect a bit. But my merges in that
> > > > > > range are all from Ingo:
> > > > > >
> > > > > > Ingo Molnar (7):
> > > > > >     header cleanup
> > > > > >     objtool updates
> > > > > >     RCU updates
> > > > > >     EFI updates
> > > > > >     locking updates
> > > > > >     perf updates
> > > > > >     scheduler updates
> > > > >
> > > > > If I had to guess then perhaps the EFI changes look the most dangerous
> > > > > ones from these trees - but in principle most of these trees could
> > > > > contain a boot crasher/hang bug.
> > > > >
> > > > > > but not having any messages at all makes it hard to guess where it
> > > > > > would be.
> > > > >
> > > > > To improve debug output:
> > > > >
> > > > > Removing any 'fbcon' options in /boot/grub/grub.cfg and adding this to
> > > > > the boot options might improve the debug output:
> > > > >
> > > > >   earlyprintk=vga initcall_debug ignore_loglevel debug panic_on_warn
> > > > >
> > > > > So for example if the relevant kernel boot entry in grub.cfg looks like
> > > > > this:
> > > > >
> > > > >   linux   /vmlinuz-5.3.0-26-generic root=UUID=1bcxabe3-0b62-4x04-b456-47cd90c0e6x4 ro  splash $vt_handoff
> > > > >
> > > > > Then editing it to the following could in principle produce (much) more
> > > > > verbose boot output:
> > > > >
> > > > >   linux   /vmlinuz-5.3.0-26-generic root=UUID=1bcxabe3-0b62-4x04-b456-47cd90c0e6x4 ro earlyprintk=vga initcall_debug ignore_loglevel debug panic_on_warn $vt_handoff
> > > > >
> > > > > If this produces more output than just "loading initial ramdisk..' then a
> > > > > photo of the hung screen would be sufficient, no need to transcribe it.
> > > > >
> > > > > > A few bisect runs would narrow it down a fair amount. Bisecting all the
> > > > > > way would be even better, of course,
> > > > >
> > > > > Agreed!
> > > > >
> > > > > If compiling full kernels for bisections takes too long (for example
> > > > > because the .config is from a distro kernel) then running "make
> > > > > localmodconfig" to create a config tailored to the currently active
> > > > > modules will cut down significantly on build time.
> > > > >
> > > > > Also, a warning: if the normal boot log contains spurious warnings then
> > > > > the new 'panic_on_warn' option will cause additional trouble on good
> > > > > kernels.
> > > >
> > > > It's bisected.
> > > > The first bad commit is :
> > > > 1db91035d01aa8bfa2350c00ccb63d629b4041ad
> > > > efi: Add tracking for dynamically allocated memmaps
> > >
> > > Thanks a ton, that's very useful!
> > >
> > > I've Cc:-ed the EFI gents who are developing this code, maybe they'll
> > > spot the bug.
> >
> > I'll take a look. Jörg, can you paste a full dmesg from a good boot?
>
> Here it is.
>

Hello Jörg,

Could you please try whether the change below fixes the issue?

diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 59f7f6d60cf6..ae923ee8e2b4 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -308,7 +308,7 @@ static void __init efi_clean_memmap(void)
                        .phys_map = efi.memmap.phys_map,
                        .desc_version = efi.memmap.desc_version,
                        .desc_size = efi.memmap.desc_size,
-                       .size = data.desc_size * (efi.memmap.nr_map -
n_removal),
+                       .size = efi.memmap.desc_size *
(efi.memmap.nr_map - n_removal),
                        .flags = 0,
                };

Re: [TEST PATCH RFC] Revert the EFI leak fixes for now (was: Re: EFI boot crash regression (was: Re: 5.6-### doesn't boot))

[Dan Williams]

On Sat, Feb 1, 2020 at 1:45 AM Ingo Molnar <mingo@kernel.org> wrote:
>
>
>
> Jörg Otte wrote:
>
> > It's bisected.
> > The first bad commit is :
> > 1db91035d01aa8bfa2350c00ccb63d629b4041ad
> > efi: Add tracking for dynamically allocated memmaps
>
> > Unfortunately I can not revert because of compile errors!
> >
> > In file included from /media/jojo/deftoshiba/kernel/linux/init/main.c:48:
> > /media/jojo/deftoshiba/kernel/linux/include/linux/efi.h:975:1: error:
> > version control conflict marker in file
> > <<<<<<< HEAD
>
> So 1db91035d0 doesn't revert cleanly, because 484a418d0754 depends on it,
> plus there a third commit (f0ef6523475f) that has a semantic dependency
> on 1db91035d01a.
>
> But you can revert them all, if done in reverse chronological order:
>
>   git revert f0ef6523475f # ("efi: Fix efi_memmap_alloc() leaks")
>   git revert 484a418d0754 # ("efi: Fix handling of multiple efi_fake_mem= entries")
>   git revert 1db91035d01a # ("efi: Add tracking for dynamically allocated memmaps")
>
> You can paste those three lines into a shell as-is, or you can apply the
> patch below which is a combination of these three reverts.
>
> Jörg, can you confirm that doing these reverts fixes booting on your
> system? If it does then a full dmesg from that kernel would be useful.
>
> FWIW I reviewed the bisected commit and didn't find the bug but I also
> couldn't convince myself it's a 1:1 identity transformation and cleanup
> of the existing logic.
>
> The size arithmethics transformation looks correct at first sight, but
> the data->flags handling in particular looks rather interwoven.

Agreed, but the only flags change that I couldn't convince myself was
correct is this:

diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 59f7f6d60cf6..314b36ac2a08 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -309,7 +309,7 @@ static void __init efi_clean_memmap(void)
                        .desc_version = efi.memmap.desc_version,
                        .desc_size = efi.memmap.desc_size,
                        .size = data.desc_size * (efi.memmap.nr_map -
n_removal),
-                       .flags = 0,
+                       .flags = efi.memmap.flags & EFI_MEMMAP_LATE,
                };

                pr_warn("Removing %d invalid memory map entries.\n", n_removal);

...but efi_clean_memmap() should "early".

Re: EFI boot crash regression (was: Re: 5.6-### doesn't boot)

[Dan Williams]

On Sat, Feb 1, 2020 at 7:35 AM Jörg Otte <jrg.otte@gmail.com> wrote:
[..]
> > I'll take a look. Jörg, can you paste a full dmesg from a good boot?
>
> Here it is.

Much appreciated, I found an old Haswell laptop and am able to
reproduce the boot hang.

Re: EFI boot crash regression (was: Re: 5.6-### doesn't boot)

[Dan Williams]

On Fri, Jan 31, 2020 at 10:45 AM Ard Biesheuvel
<ard.biesheuvel@linaro.org> wrote:
>
> earlycon=efifb may help to get better diagnostics, but you will need to use a camera to capture the output

https://photos.app.goo.gl/uA3Wkaxc8x6A4gK47

Re: EFI boot crash regression (was: Re: 5.6-### doesn't boot)

[Ard Biesheuvel]

On Sat, 1 Feb 2020 at 22:44, Dan Williams <dan.j.williams@intel.com> wrote:
>
> On Fri, Jan 31, 2020 at 10:45 AM Ard Biesheuvel
> <ard.biesheuvel@linaro.org> wrote:
> >
> > earlycon=efifb may help to get better diagnostics, but you will need to use a camera to capture the output
>
> https://photos.app.goo.gl/uA3Wkaxc8x6A4gK47

Yeah, so it definitely has to do with the n_removal > 0 path.

Did you try the change I suggested to Joerg?

Re: EFI boot crash regression (was: Re: 5.6-### doesn't boot)

[Dan Williams]

On Sat, Feb 1, 2020 at 1:49 PM Ard Biesheuvel <ard.biesheuvel@linaro.org> wrote:
>
> On Sat, 1 Feb 2020 at 22:44, Dan Williams <dan.j.williams@intel.com> wrote:
> >
> > On Fri, Jan 31, 2020 at 10:45 AM Ard Biesheuvel
> > <ard.biesheuvel@linaro.org> wrote:
> > >
> > > earlycon=efifb may help to get better diagnostics, but you will need to use a camera to capture the output
> >
> > https://photos.app.goo.gl/uA3Wkaxc8x6A4gK47
>
> Yeah, so it definitely has to do with the n_removal > 0 path.
>
> Did you try the change I suggested to Joerg?

Nice, it worked.

Tested-by: Dan Williams <dan.j.williams@intel.com>

Re: EFI boot crash regression (was: Re: 5.6-### doesn't boot)

[Ard Biesheuvel]

On Sat, 1 Feb 2020 at 23:31, Dan Williams <dan.j.williams@intel.com> wrote:
>
> On Sat, Feb 1, 2020 at 1:49 PM Ard Biesheuvel <ard.biesheuvel@linaro.org> wrote:
> >
> > On Sat, 1 Feb 2020 at 22:44, Dan Williams <dan.j.williams@intel.com> wrote:
> > >
> > > On Fri, Jan 31, 2020 at 10:45 AM Ard Biesheuvel
> > > <ard.biesheuvel@linaro.org> wrote:
> > > >
> > > > earlycon=efifb may help to get better diagnostics, but you will need to use a camera to capture the output
> > >
> > > https://photos.app.goo.gl/uA3Wkaxc8x6A4gK47
> >
> > Yeah, so it definitely has to do with the n_removal > 0 path.
> >
> > Did you try the change I suggested to Joerg?
>
> Nice, it worked.
>
> Tested-by: Dan Williams <dan.j.williams@intel.com>

Thanks for confirming. I'll spin a proper patch.

Re: EFI boot crash regression (was: Re: 5.6-### doesn't boot)

[Ingo Molnar]

* Ard Biesheuvel <ard.biesheuvel@linaro.org> wrote:

> Hello Jörg,
> 
> Could you please try whether the change below fixes the issue?
> 
> diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
> index 59f7f6d60cf6..ae923ee8e2b4 100644
> --- a/arch/x86/platform/efi/efi.c
> +++ b/arch/x86/platform/efi/efi.c
> @@ -308,7 +308,7 @@ static void __init efi_clean_memmap(void)
>                         .phys_map = efi.memmap.phys_map,
>                         .desc_version = efi.memmap.desc_version,
>                         .desc_size = efi.memmap.desc_size,
> -                       .size = data.desc_size * (efi.memmap.nr_map - n_removal),
> +                       .size = efi.memmap.desc_size * (efi.memmap.nr_map - n_removal),
>                         .flags = 0,

Oh, I actually noticed this one, but convinced myself that it's correct, 
because GCC didn't warn about uninitialized data.

But maybe in this weird case data.desc_size as used within its own 
initializer is zero?

Thanks,

	Ingo

Re: EFI boot crash regression (was: Re: 5.6-### doesn't boot)

[Ard Biesheuvel]

On Sun, 2 Feb 2020 at 10:22, Ingo Molnar <mingo@kernel.org> wrote:
>
>
> * Ard Biesheuvel <ard.biesheuvel@linaro.org> wrote:
>
> > Hello Jörg,
> >
> > Could you please try whether the change below fixes the issue?
> >
> > diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
> > index 59f7f6d60cf6..ae923ee8e2b4 100644
> > --- a/arch/x86/platform/efi/efi.c
> > +++ b/arch/x86/platform/efi/efi.c
> > @@ -308,7 +308,7 @@ static void __init efi_clean_memmap(void)
> >                         .phys_map = efi.memmap.phys_map,
> >                         .desc_version = efi.memmap.desc_version,
> >                         .desc_size = efi.memmap.desc_size,
> > -                       .size = data.desc_size * (efi.memmap.nr_map - n_removal),
> > +                       .size = efi.memmap.desc_size * (efi.memmap.nr_map - n_removal),
> >                         .flags = 0,
>
> Oh, I actually noticed this one, but convinced myself that it's correct,
> because GCC didn't warn about uninitialized data.
>
> But maybe in this weird case data.desc_size as used within its own
> initializer is zero?
>

Something like that, yes. Note that size and desc_size appear in
opposite order in the struct definition, and this may also affect how
the compiler handles this.

Re: EFI boot crash regression (was: Re: 5.6-### doesn't boot)

[Jörg Otte]

Am So., 2. Feb. 2020 um 10:22 Uhr schrieb Ingo Molnar <mingo@kernel.org>:
>
>
> * Ard Biesheuvel <ard.biesheuvel@linaro.org> wrote:
>
> > Hello Jörg,
> >
> > Could you please try whether the change below fixes the issue?
> >
> > diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
> > index 59f7f6d60cf6..ae923ee8e2b4 100644
> > --- a/arch/x86/platform/efi/efi.c
> > +++ b/arch/x86/platform/efi/efi.c
> > @@ -308,7 +308,7 @@ static void __init efi_clean_memmap(void)
> >                         .phys_map = efi.memmap.phys_map,
> >                         .desc_version = efi.memmap.desc_version,
> >                         .desc_size = efi.memmap.desc_size,
> > -                       .size = data.desc_size * (efi.memmap.nr_map - n_removal),
> > +                       .size = efi.memmap.desc_size * (efi.memmap.nr_map - n_removal),
> >                         .flags = 0,
>
> Oh, I actually noticed this one, but convinced myself that it's correct,
> because GCC didn't warn about uninitialized data.
>
> But maybe in this weird case data.desc_size as used within its own
> initializer is zero?
>
Patch makes my kernel booting again :)

Thanks, Jörg

Re: EFI boot crash regression (was: Re: 5.6-### doesn't boot)

[Ingo Molnar]

* Jörg Otte <jrg.otte@gmail.com> wrote:

> Am So., 2. Feb. 2020 um 10:22 Uhr schrieb Ingo Molnar <mingo@kernel.org>:
> >
> >
> > * Ard Biesheuvel <ard.biesheuvel@linaro.org> wrote:
> >
> > > Hello Jörg,
> > >
> > > Could you please try whether the change below fixes the issue?
> > >
> > > diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
> > > index 59f7f6d60cf6..ae923ee8e2b4 100644
> > > --- a/arch/x86/platform/efi/efi.c
> > > +++ b/arch/x86/platform/efi/efi.c
> > > @@ -308,7 +308,7 @@ static void __init efi_clean_memmap(void)
> > >                         .phys_map = efi.memmap.phys_map,
> > >                         .desc_version = efi.memmap.desc_version,
> > >                         .desc_size = efi.memmap.desc_size,
> > > -                       .size = data.desc_size * (efi.memmap.nr_map - n_removal),
> > > +                       .size = efi.memmap.desc_size * (efi.memmap.nr_map - n_removal),
> > >                         .flags = 0,
> >
> > Oh, I actually noticed this one, but convinced myself that it's correct,
> > because GCC didn't warn about uninitialized data.
> >
> > But maybe in this weird case data.desc_size as used within its own
> > initializer is zero?
>
> Patch makes my kernel booting again :)

Thank you! I'll send the fix to Linus later today.

	Ingo