[PATCH] tpm: efi: Don't create binary_bios_measurements file for an empty log

[PATCH] tpm: efi: Don't create binary_bios_measurements file for an empty log

[Tyler Hicks]

Mimic the pre-existing ACPI and Device Tree event log behavior by not
creating the binary_bios_measurements file when the EFI TPM event log is
empty.

This fixes the following NULL pointer dereference that can occur when
reading /sys/kernel/security/tpm0/binary_bios_measurements after the
kernel received an empty event log from the firmware:

 BUG: kernel NULL pointer dereference, address: 000000000000002c
 #PF: supervisor read access in kernel mode
 #PF: error_code(0x0000) - not-present page
 PGD 0 P4D 0
 Oops: 0000 [#1] SMP PTI
 CPU: 2 PID: 3932 Comm: fwupdtpmevlog Not tainted 5.9.0-00003-g629990edad62 #17
 Hardware name: LENOVO 20LCS03L00/20LCS03L00, BIOS N27ET38W (1.24 ) 11/28/2019
 RIP: 0010:tpm2_bios_measurements_start+0x3a/0x550
 Code: 54 53 48 83 ec 68 48 8b 57 70 48 8b 1e 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 48 8b 82 c0 06 00 00 48 8b 8a c8 06 00 00 <44> 8b 60 1c 48 89 4d a0 4c 89 e2 49 83 c4 20 48 83 fb 00 75 2a 49
 RSP: 0018:ffffa9c901203db0 EFLAGS: 00010246
 RAX: 0000000000000010 RBX: 0000000000000000 RCX: 0000000000000010
 RDX: ffff8ba1eb99c000 RSI: ffff8ba1e4ce8280 RDI: ffff8ba1e4ce8258
 RBP: ffffa9c901203e40 R08: ffffa9c901203dd8 R09: ffff8ba1ec443300
 R10: ffffa9c901203e50 R11: 0000000000000000 R12: ffff8ba1e4ce8280
 R13: ffffa9c901203ef0 R14: ffffa9c901203ef0 R15: ffff8ba1e4ce8258
 FS:  00007f6595460880(0000) GS:ffff8ba1ef880000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 000000000000002c CR3: 00000007d8d18003 CR4: 00000000003706e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  ? __kmalloc_node+0x113/0x320
  ? kvmalloc_node+0x31/0x80
  seq_read+0x94/0x420
  vfs_read+0xa7/0x190
  ksys_read+0xa7/0xe0
  __x64_sys_read+0x1a/0x20
  do_syscall_64+0x37/0x80
  entry_SYSCALL_64_after_hwframe+0x44/0xa9

In this situation, the bios_event_log pointer in the tpm_bios_log struct
was not NULL but was equal to the ZERO_SIZE_PTR (0x10) value. This was
due to the following kmemdup() in tpm_read_log_efi():

int tpm_read_log_efi(struct tpm_chip *chip)
{
...
	/* malloc EventLog space */
	log->bios_event_log = kmemdup(log_tbl->log, log_size, GFP_KERNEL);
	if (!log->bios_event_log) {
		ret = -ENOMEM;
		goto out;
	}
...
}

When log_size is zero, due to an empty event log from firmware,
ZERO_SIZE_PTR is returned from kmemdup(). Upon a read of the
binary_bios_measurements file, the tpm2_bios_measurements_start()
function does not perform a ZERO_OR_NULL_PTR() check on the
bios_event_log pointer before dereferencing it.

Rather than add a ZERO_OR_NULL_PTR() check in functions that make use of
the bios_event_log pointer, simply avoid creating the
binary_bios_measurements_file as is done in other event log retrieval
backends.

Explicitly ignore all of the events in the final event log when the main
event log is empty. The list of events in the final event log cannot be
accurately parsed without referring to the first event in the main event
log (the event log header) so the final event log is useless in such a
situation.

Fixes: 58cc1e4faf10 ("tpm: parse TPM event logs based on EFI table")
Link: https://lore.kernel.org/linux-integrity/E1FDCCCB-CA51-4AEE-AC83-9CDE995EAE52@canonical.com/
Reported-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Reported-by: Kenneth R. Crudup <kenny@panix.com>
Reported-by: Mimi Zohar <zohar@linux.ibm.com>
Cc: Thiébaud Weksteen <tweek@google.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Tyler Hicks <tyhicks@linux.microsoft.com>
---
 drivers/char/tpm/eventlog/efi.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/char/tpm/eventlog/efi.c b/drivers/char/tpm/eventlog/efi.c
index 6bb023de17f1..35229e5143ca 100644
--- a/drivers/char/tpm/eventlog/efi.c
+++ b/drivers/char/tpm/eventlog/efi.c
@@ -41,6 +41,11 @@ int tpm_read_log_efi(struct tpm_chip *chip)
 	log_size = log_tbl->size;
 	memunmap(log_tbl);
 
+	if (!log_size) {
+		pr_warn("UEFI TPM log area empty\n");
+		return -EIO;
+	}
+
 	log_tbl = memremap(efi.tpm_log, sizeof(*log_tbl) + log_size,
 			   MEMREMAP_WB);
 	if (!log_tbl) {

base-commit: ed8780e3f2ecc82645342d070c6b4e530532e680
-- 
2.25.1

Re: [PATCH] tpm: efi: Don't create binary_bios_measurements file for an empty log

[Tyler Hicks]

On 2020-10-28 10:41:02, Tyler Hicks wrote:
> Mimic the pre-existing ACPI and Device Tree event log behavior by not
> creating the binary_bios_measurements file when the EFI TPM event log is
> empty.
> 
> This fixes the following NULL pointer dereference that can occur when
> reading /sys/kernel/security/tpm0/binary_bios_measurements after the
> kernel received an empty event log from the firmware:
> 
>  BUG: kernel NULL pointer dereference, address: 000000000000002c
>  #PF: supervisor read access in kernel mode
>  #PF: error_code(0x0000) - not-present page
>  PGD 0 P4D 0
>  Oops: 0000 [#1] SMP PTI
>  CPU: 2 PID: 3932 Comm: fwupdtpmevlog Not tainted 5.9.0-00003-g629990edad62 #17
>  Hardware name: LENOVO 20LCS03L00/20LCS03L00, BIOS N27ET38W (1.24 ) 11/28/2019
>  RIP: 0010:tpm2_bios_measurements_start+0x3a/0x550
>  Code: 54 53 48 83 ec 68 48 8b 57 70 48 8b 1e 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 48 8b 82 c0 06 00 00 48 8b 8a c8 06 00 00 <44> 8b 60 1c 48 89 4d a0 4c 89 e2 49 83 c4 20 48 83 fb 00 75 2a 49
>  RSP: 0018:ffffa9c901203db0 EFLAGS: 00010246
>  RAX: 0000000000000010 RBX: 0000000000000000 RCX: 0000000000000010
>  RDX: ffff8ba1eb99c000 RSI: ffff8ba1e4ce8280 RDI: ffff8ba1e4ce8258
>  RBP: ffffa9c901203e40 R08: ffffa9c901203dd8 R09: ffff8ba1ec443300
>  R10: ffffa9c901203e50 R11: 0000000000000000 R12: ffff8ba1e4ce8280
>  R13: ffffa9c901203ef0 R14: ffffa9c901203ef0 R15: ffff8ba1e4ce8258
>  FS:  00007f6595460880(0000) GS:ffff8ba1ef880000(0000) knlGS:0000000000000000
>  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>  CR2: 000000000000002c CR3: 00000007d8d18003 CR4: 00000000003706e0
>  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
>  DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
>  Call Trace:
>   ? __kmalloc_node+0x113/0x320
>   ? kvmalloc_node+0x31/0x80
>   seq_read+0x94/0x420
>   vfs_read+0xa7/0x190
>   ksys_read+0xa7/0xe0
>   __x64_sys_read+0x1a/0x20
>   do_syscall_64+0x37/0x80
>   entry_SYSCALL_64_after_hwframe+0x44/0xa9
> 
> In this situation, the bios_event_log pointer in the tpm_bios_log struct
> was not NULL but was equal to the ZERO_SIZE_PTR (0x10) value. This was
> due to the following kmemdup() in tpm_read_log_efi():
> 
> int tpm_read_log_efi(struct tpm_chip *chip)
> {
> ...
> 	/* malloc EventLog space */
> 	log->bios_event_log = kmemdup(log_tbl->log, log_size, GFP_KERNEL);
> 	if (!log->bios_event_log) {
> 		ret = -ENOMEM;
> 		goto out;
> 	}
> ...
> }
> 
> When log_size is zero, due to an empty event log from firmware,
> ZERO_SIZE_PTR is returned from kmemdup(). Upon a read of the
> binary_bios_measurements file, the tpm2_bios_measurements_start()
> function does not perform a ZERO_OR_NULL_PTR() check on the
> bios_event_log pointer before dereferencing it.
> 
> Rather than add a ZERO_OR_NULL_PTR() check in functions that make use of
> the bios_event_log pointer, simply avoid creating the
> binary_bios_measurements_file as is done in other event log retrieval
> backends.
> 
> Explicitly ignore all of the events in the final event log when the main
> event log is empty. The list of events in the final event log cannot be
> accurately parsed without referring to the first event in the main event
> log (the event log header) so the final event log is useless in such a
> situation.
> 
> Fixes: 58cc1e4faf10 ("tpm: parse TPM event logs based on EFI table")
> Link: https://lore.kernel.org/linux-integrity/E1FDCCCB-CA51-4AEE-AC83-9CDE995EAE52@canonical.com/
> Reported-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
> Reported-by: Kenneth R. Crudup <kenny@panix.com>
> Reported-by: Mimi Zohar <zohar@linux.ibm.com>
> Cc: Thiébaud Weksteen <tweek@google.com>
> Cc: Ard Biesheuvel <ardb@kernel.org>
> Signed-off-by: Tyler Hicks <tyhicks@linux.microsoft.com>

While I was never able to get my firmware to provide me an empty event
log, I reproduced this issue locally and verified the fix by forcing the EFI
stub to create an empty event log like so:

diff --git a/drivers/firmware/efi/libstub/tpm.c b/drivers/firmware/efi/libstub/tpm.c
index 7acbac16eae0..a9b9478cff14 100644
--- a/drivers/firmware/efi/libstub/tpm.c
+++ b/drivers/firmware/efi/libstub/tpm.c
@@ -85,7 +85,7 @@ void efi_retrieve_tpm2_eventlog(void)
 	/*
 	 * We populate the EFI table even if the logs are empty.
 	 */
-	if (!log_last_entry) {
+	if (true) {
 		log_size = 0;
 	} else {
 		last_entry_addr = (unsigned long) log_last_entry;

With that EFI stub change, I was able to verify that this crash happens
with or without commit 7f3d176f5f7e ("tpm: Require that all digests are
present in TCG_PCR_EVENT2 structures"). So, there's still the question
of why commit 7f3d176f5f7e uncovered this crash?

My theory, which I personally cannot prove since my Thinkpad's firmware
isn't acting the same as Kai's, Kenneth's, or Mimi's, is that some
EFI firmware is providing an empty main event log and a populated final
event log.

If this is true, prior to commit 7f3d176f5f7e, the EFI stub's
efi_retrieve_tpm2_eventlog() function would follow suite and provide the
same empty main event log and populated final event log to the kernel.

After commit 7f3d176f5f7e and when the main event log is empty, the
while loop below would start returning 0 because log_location is not a
valid event log header. It would either be zeroes or otherwise
junk/unexpected data (I'm not sure). The point is that final_events_size
is not incremented and the final event log is (rightfully, IMO) treated
as being empty after commit 7f3d176f5f7e.

void efi_retrieve_tpm2_eventlog(void)
{
...
	/*
	 * Figure out whether any events have already been logged to the
	 * final events structure, and if so how much space they take up
	 */
	if (version == EFI_TCG2_EVENT_LOG_FORMAT_TCG_2)
		final_events_table = get_efi_config_table(LINUX_EFI_TPM_FINAL_LOG_GUID);
	if (final_events_table && final_events_table->nr_events) {
		struct tcg_pcr_event2_head *header;
		int offset;
		void *data;
		int event_size;
		int i = final_events_table->nr_events;

		data = (void *)final_events_table;
		offset = sizeof(final_events_table->version) +
			sizeof(final_events_table->nr_events);

		while (i > 0) {
			header = data + offset + final_events_size;
			event_size = __calc_tpm2_event_size(header,
						   (void *)(long)log_location,
						   false);
			final_events_size += event_size;
			i--;
		}
	}
...
	log_tbl->final_events_preboot_size = final_events_size;
...
}

Now we'll move to tpm_read_log_efi() to see why it matters whether or
not final_events_size is zero:

/* read binary bios log from EFI configuration table */
int tpm_read_log_efi(struct tpm_chip *chip)
{
...
	efi_tpm_final_log_size -= log_tbl->final_events_preboot_size;

	tmp = krealloc(log->bios_event_log,
		       log_size + efi_tpm_final_log_size,
		       GFP_KERNEL);
	if (!tmp) {
		kfree(log->bios_event_log);
		ret = -ENOMEM;
		goto out;
	}

	log->bios_event_log = tmp;

	/*
	 * Copy any of the final events log that didn't also end up in the
	 * main log. Events can be logged in both if events are generated
	 * between GetEventLog() and ExitBootServices().
	 */
	memcpy((void *)log->bios_event_log + log_size,
	       final_tbl->events + log_tbl->final_events_preboot_size,
	       efi_tpm_final_log_size);
	log->bios_event_log_end = log->bios_event_log +
		log_size + efi_tpm_final_log_size;
...
}

There's nothing in tpm_read_log_efi(), prior to the patch I just
proposed, that prevents the final event log from being copied into an
otherwise empty main event log. In that situation, log->bios_event_log
is allocated (remember, it was not initially allocated because log_size
was 0) and the NULL pointer dereference crash upon reading the
binary_bios_measurements file would not happen.

The problem is that the resulting event log is not usable because
there's no event log header. __calc_tpm2_event_size() was too lax, prior
to commit 7f3d176f5f7e, to notice that the event log header was not
actually an event log header and, instead, was a regular event from the
final event log.

So, we need help from Kai, Kenneth, or Mimi to verify my assumption that
their firmware is providing an empty main event log and a populated
final event log. If that assumption is correct, then we could either:

A) Be alright with my proposed patch that bails out of
   tpm_read_log_efi() when the main event log is empty. The crash would
   be fixed and the binary_bios_measurements file simply would not
   exist.

or

B) Write an additional, separate patch for the EFI stub that ignores the
   final event log when the main event log is empty. Perhaps something
   like this (untested):

diff --git a/drivers/firmware/efi/libstub/tpm.c b/drivers/firmware/efi/libstub/tpm.c
index 7acbac16eae0..ad8f9ecf6dc2 100644
--- a/drivers/firmware/efi/libstub/tpm.c
+++ b/drivers/firmware/efi/libstub/tpm.c
@@ -127,7 +127,7 @@ void efi_retrieve_tpm2_eventlog(void)
 	 * Figure out whether any events have already been logged to the
 	 * final events structure, and if so how much space they take up
 	 */
-	if (version == EFI_TCG2_EVENT_LOG_FORMAT_TCG_2)
+	if (log_size && version == EFI_TCG2_EVENT_LOG_FORMAT_TCG_2)
 		final_events_table = get_efi_config_table(LINUX_EFI_TPM_FINAL_LOG_GUID);
 	if (final_events_table && final_events_table->nr_events) {
 		struct tcg_pcr_event2_head *header;

Tyler

Re: [PATCH] tpm: efi: Don't create binary_bios_measurements file for an empty log

[Tyler Hicks]

On 2020-10-28 11:30:11, Tyler Hicks wrote:
> So, we need help from Kai, Kenneth, or Mimi to verify my assumption that
> their firmware is providing an empty main event log and a populated
> final event log.

Hi Kai, Kenneth, and Mimi - could one or two of you please follow these
steps:

1) Apply the proposed patch in the grandparent of this email so that
   your kernel doesn't crash
2) Revert commit 7f3d176f5f7e ("tpm: Require that all digests are
   present in TCG_PCR_EVENT2 structures") so that
   __calc_tpm2_event_size() goes back to being less picky and may treat
   a final log event as a valid event log header
3) Add some debugging warnings in efi_tpm_eventlog_init() to check for
   an empty main event log and a populated final event log, as shown
   below
4) Boot the resulting kernel build, look for the warnings, and report
   back

diff --git a/drivers/firmware/efi/tpm.c b/drivers/firmware/efi/tpm.c
index c1955d320fec..c4d2dbd5ed42 100644
--- a/drivers/firmware/efi/tpm.c
+++ b/drivers/firmware/efi/tpm.c
@@ -78,6 +78,9 @@ int __init efi_tpm_eventlog_init(void)
 		goto out;
 	}
 
+	WARN(!log_tbl->size && final_tbl->nr_events,
+	     "nr_events = %llu\n", final_tbl->nr_events);
+
 	tbl_size = 0;
 	if (final_tbl->nr_events != 0) {
 		void *events = (void *)efi.tpm_final_log
@@ -95,6 +98,8 @@ int __init efi_tpm_eventlog_init(void)
 		goto out_calc;
 	}
 
+	WARN(!log_tbl->size && tbl_size, "tbl_size = %d\n", tbl_size);
+
 	memblock_reserve((unsigned long)final_tbl,
 			 tbl_size + sizeof(*final_tbl));
 	efi_tpm_final_log_size = tbl_size;

For your convenience, I've created a branch with these changes on top of
v5.9:

 https://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/linux.git/log/?h=tpm/bin-bios-measurements-debug

Thank you!

Tyler

Re: [PATCH] tpm: efi: Don't create binary_bios_measurements file for an empty log

[Kai-Heng Feng]

[-- Attachment #1: Type: text/plain, Size: 1991 bytes --]



> On Oct 29, 2020, at 01:39, Tyler Hicks <tyhicks@linux.microsoft.com> wrote:
> 
> On 2020-10-28 11:30:11, Tyler Hicks wrote:
>> So, we need help from Kai, Kenneth, or Mimi to verify my assumption that
>> their firmware is providing an empty main event log and a populated
>> final event log.
> 
> Hi Kai, Kenneth, and Mimi - could one or two of you please follow these
> steps:
> 
> 1) Apply the proposed patch in the grandparent of this email so that
>   your kernel doesn't crash
> 2) Revert commit 7f3d176f5f7e ("tpm: Require that all digests are
>   present in TCG_PCR_EVENT2 structures") so that
>   __calc_tpm2_event_size() goes back to being less picky and may treat
>   a final log event as a valid event log header
> 3) Add some debugging warnings in efi_tpm_eventlog_init() to check for
>   an empty main event log and a populated final event log, as shown
>   below
> 4) Boot the resulting kernel build, look for the warnings, and report
>   back
> 
> diff --git a/drivers/firmware/efi/tpm.c b/drivers/firmware/efi/tpm.c
> index c1955d320fec..c4d2dbd5ed42 100644
> --- a/drivers/firmware/efi/tpm.c
> +++ b/drivers/firmware/efi/tpm.c
> @@ -78,6 +78,9 @@ int __init efi_tpm_eventlog_init(void)
> 		goto out;
> 	}
> 
> +	WARN(!log_tbl->size && final_tbl->nr_events,
> +	     "nr_events = %llu\n", final_tbl->nr_events);
> +
> 	tbl_size = 0;
> 	if (final_tbl->nr_events != 0) {
> 		void *events = (void *)efi.tpm_final_log
> @@ -95,6 +98,8 @@ int __init efi_tpm_eventlog_init(void)
> 		goto out_calc;
> 	}
> 
> +	WARN(!log_tbl->size && tbl_size, "tbl_size = %d\n", tbl_size);
> +
> 	memblock_reserve((unsigned long)final_tbl,
> 			 tbl_size + sizeof(*final_tbl));
> 	efi_tpm_final_log_size = tbl_size;
> 
> For your convenience, I've created a branch with these changes on top of
> v5.9:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/linux.git/log/?h=tpm/bin-bios-measurements-debug

Dmesg attached.

Kai-Heng

[-- Attachment #2: dmesg --]
[-- Type: application/octet-stream, Size: 81122 bytes --]

[    0.000000] microcode: microcode updated early to revision 0xd6, date = 2020-04-27
[    0.000000] Linux version 5.9.0+ (khfeng@ThinkPad-T580) (gcc (Ubuntu 10.2.0-15ubuntu1) 10.2.0, GNU ld (GNU Binutils for Ubuntu) 2.35.1) #28 SMP Fri Oct 30 14:05:37 CST 2020
[    0.000000] Command line: BOOT_IMAGE=/@/boot/vmlinuz-5.9.0+ root=UUID=523fd023-8a9d-45cc-90fc-7823d5a8636f ro rootflags=subvol=@ quiet splash vt.handoff=7
[    0.000000] KERNEL supported cpus:
[    0.000000]   Intel GenuineIntel
[    0.000000]   AMD AuthenticAMD
[    0.000000]   Hygon HygonGenuine
[    0.000000]   Centaur CentaurHauls
[    0.000000]   zhaoxin   Shanghai  
[    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: Supporting XSAVE feature 0x008: 'MPX bounds registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x010: 'MPX CSR'
[    0.000000] x86/fpu: xstate_offset[2]:  576, xstate_sizes[2]:  256
[    0.000000] x86/fpu: xstate_offset[3]:  832, xstate_sizes[3]:   64
[    0.000000] x86/fpu: xstate_offset[4]:  896, xstate_sizes[4]:   64
[    0.000000] x86/fpu: Enabled xstate features 0x1f, context size is 960 bytes, using 'compacted' 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 0x0000000000059000-0x000000000009cfff] usable
[    0.000000] BIOS-e820: [mem 0x000000000009d000-0x00000000000fffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000003fffffff] usable
[    0.000000] BIOS-e820: [mem 0x0000000040000000-0x00000000403fffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000040400000-0x000000004f248fff] usable
[    0.000000] BIOS-e820: [mem 0x000000004f249000-0x000000004f24afff] reserved
[    0.000000] BIOS-e820: [mem 0x000000004f24b000-0x000000004fee4fff] usable
[    0.000000] BIOS-e820: [mem 0x000000004fee5000-0x000000004fee5fff] reserved
[    0.000000] BIOS-e820: [mem 0x000000004fee6000-0x000000005eaabfff] usable
[    0.000000] BIOS-e820: [mem 0x000000005eaac000-0x000000005eaacfff] ACPI NVS
[    0.000000] BIOS-e820: [mem 0x000000005eaad000-0x000000005eaadfff] reserved
[    0.000000] BIOS-e820: [mem 0x000000005eaae000-0x0000000068419fff] usable
[    0.000000] BIOS-e820: [mem 0x000000006841a000-0x00000000694f4fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000694f5000-0x0000000069599fff] ACPI NVS
[    0.000000] BIOS-e820: [mem 0x000000006959a000-0x00000000695fefff] ACPI data
[    0.000000] BIOS-e820: [mem 0x00000000695ff000-0x00000000695fffff] usable
[    0.000000] BIOS-e820: [mem 0x0000000069600000-0x000000006f7fffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000f0000000-0x00000000f7ffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fe010000-0x00000000fe010fff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000028f7fffff] usable
[    0.000000] NX (Execute Disable) protection: active
[    0.000000] efi: EFI v2.50 by Lenovo
[    0.000000] efi: TPMFinalLog=0x69592000 SMBIOS=0x686a5000 SMBIOS 3.0=0x686a2000 ACPI=0x695fe000 ACPI 2.0=0x695fe014 ESRT=0x6852f000 MEMATTR=0x62e3b018 RNG=0x686a6198 TPMEventLog=0x5ec19d18 
[    0.000000] efi: seeding entropy pool
[    0.000000] random: fast init done
[    0.000000] SMBIOS 3.0.0 present.
[    0.000000] DMI: LENOVO 20LAZ3TXCN/20LAZ3TXCN, BIOS N27ET38W (1.24 ) 11/28/2019
[    0.000000] tsc: Detected 1800.000 MHz processor
[    0.000973] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
[    0.000977] e820: remove [mem 0x000a0000-0x000fffff] usable
[    0.000990] last_pfn = 0x28f800 max_arch_pfn = 0x400000000
[    0.000997] MTRR default type: write-back
[    0.000999] MTRR fixed ranges enabled:
[    0.001001]   00000-9FFFF write-back
[    0.001002]   A0000-BFFFF uncachable
[    0.001004]   C0000-FFFFF write-protect
[    0.001005] MTRR variable ranges enabled:
[    0.001008]   0 base 0080000000 mask 7F80000000 uncachable
[    0.001010]   1 base 0070000000 mask 7FF0000000 uncachable
[    0.001011]   2 base 006C000000 mask 7FFC000000 uncachable
[    0.001013]   3 base 006B000000 mask 7FFF000000 uncachable
[    0.001014]   4 disabled
[    0.001015]   5 disabled
[    0.001016]   6 disabled
[    0.001017]   7 disabled
[    0.001017]   8 disabled
[    0.001018]   9 disabled
[    0.001953] x86/PAT: Configuration [0-7]: WB  WC  UC- UC  WB  WP  UC- WT  
[    0.002299] last_pfn = 0x69600 max_arch_pfn = 0x400000000
[    0.023491] esrt: Reserving ESRT space from 0x000000006852f000 to 0x000000006852f0b0.
[    0.023506] check: Scanning 1 areas for low memory corruption
[    0.023514] Using GB pages for direct mapping
[    0.024568] Secure boot disabled
[    0.024570] RAMDISK: [mem 0x26887000-0x275b0fff]
[    0.024583] ACPI: Early table checksum verification disabled
[    0.024588] ACPI: RSDP 0x00000000695FE014 000024 (v02 LENOVO)
[    0.024593] ACPI: XSDT 0x00000000695B3188 00012C (v01 LENOVO TP-N27   00001240 PTEC 00000002)
[    0.024602] ACPI: FACP 0x00000000695EC000 0000F4 (v05 LENOVO TP-N27   00001240 PTEC 00000002)
[    0.024610] ACPI: DSDT 0x00000000695C1000 026B21 (v02 LENOVO SKL      00000000 INTL 20160527)
[    0.024615] ACPI: FACS 0x000000006953E000 000040
[    0.024619] ACPI: SSDT 0x00000000695F4000 008063 (v02 LENOVO DptfTabl 00001000 INTL 20160527)
[    0.024623] ACPI: SSDT 0x00000000695F3000 0003DB (v02 LENOVO Tpm2Tabl 00001000 INTL 20160527)
[    0.024627] ACPI: TPM2 0x00000000695F2000 000034 (v03 LENOVO TP-N27   00001240 PTEC 00000002)
[    0.024631] ACPI: UEFI 0x0000000069553000 000042 (v01 LENOVO TP-N27   00001240 PTEC 00000002)
[    0.024636] ACPI: SSDT 0x00000000695EE000 0030DA (v02 LENOVO SaSsdt   00003000 INTL 20160527)
[    0.024640] ACPI: SSDT 0x00000000695ED000 0005C6 (v02 LENOVO PerfTune 00001000 INTL 20160527)
[    0.024644] ACPI: HPET 0x00000000695EB000 000038 (v01 LENOVO TP-N27   00001240 PTEC 00000002)
[    0.024648] ACPI: APIC 0x00000000695EA000 00012C (v03 LENOVO TP-N27   00001240 PTEC 00000002)
[    0.024652] ACPI: MCFG 0x00000000695E9000 00003C (v01 LENOVO TP-N27   00001240 PTEC 00000002)
[    0.024656] ACPI: ECDT 0x00000000695E8000 000053 (v01 LENOVO TP-N27   00001240 PTEC 00000002)
[    0.024660] ACPI: SSDT 0x00000000695BF000 001C12 (v02 LENOVO RVP7Rtd3 00001000 INTL 20160527)
[    0.024665] ACPI: SSDT 0x00000000695BD000 00163C (v02 LENOVO ProjSsdt 00000010 INTL 20160527)
[    0.024669] ACPI: BOOT 0x00000000695BC000 000028 (v01 LENOVO TP-N27   00001240 PTEC 00000002)
[    0.024673] ACPI: BATB 0x00000000695BB000 00004A (v02 LENOVO TP-N27   00001240 PTEC 00000002)
[    0.024677] ACPI: SSDT 0x00000000695B9000 0017AE (v02 LENOVO CpuSsdt  00003000 INTL 20160527)
[    0.024681] ACPI: SSDT 0x00000000695B8000 00056D (v02 LENOVO CtdpB    00001000 INTL 20160527)
[    0.024686] ACPI: SSDT 0x00000000695B7000 000678 (v02 LENOVO UsbCTabl 00001000 INTL 20160527)
[    0.024690] ACPI: LPIT 0x00000000695B6000 000094 (v01 LENOVO TP-N27   00001240 PTEC 00000002)
[    0.024694] ACPI: WSMT 0x00000000695B5000 000028 (v01 LENOVO TP-N27   00001240 PTEC 00000002)
[    0.024698] ACPI: SSDT 0x00000000695B4000 000141 (v02 LENOVO HdaDsp   00000000 INTL 20160527)
[    0.024702] ACPI: SSDT 0x00000000695FD000 0004D5 (v02 LENOVO TbtTypeC 00000000 INTL 20160527)
[    0.024706] ACPI: SSDT 0x00000000695B2000 0002D1 (v02 LENOVO Wwan     00000001 INTL 20160527)
[    0.024711] ACPI: DBGP 0x00000000695B1000 000034 (v01 LENOVO TP-N27   00001240 PTEC 00000002)
[    0.024715] ACPI: DBG2 0x00000000695B0000 000054 (v00 LENOVO TP-N27   00001240 PTEC 00000002)
[    0.024720] ACPI: POAT 0x00000000695AF000 000055 (v03 LENOVO TP-N27   00001240 PTEC 00000002)
[    0.024728] ACPI: SSDT 0x00000000695AE000 00006C (v01 LENOVO NvOptTbl 00001000 INTL 20160527)
[    0.024737] ACPI: SSDT 0x00000000695AC000 00147E (v02 LENOVO SgPch    00001000 INTL 20160527)
[    0.024741] ACPI: DMAR 0x00000000695AB000 0000A8 (v01 LENOVO TP-N27   00001240 PTEC 00000002)
[    0.024745] ACPI: ASF! 0x00000000695AA000 0000A0 (v32 LENOVO TP-N27   00001240 PTEC 00000002)
[    0.024750] ACPI: FPDT 0x00000000695A9000 000044 (v01 LENOVO TP-N27   00001240 PTEC 00000002)
[    0.024754] ACPI: BGRT 0x00000000695A8000 000038 (v01 LENOVO TP-N27   00001240 PTEC 00000002)
[    0.024758] ACPI: UEFI 0x000000006950A000 00013E (v01 LENOVO TP-N27   00001240 PTEC 00000002)
[    0.024770] ACPI: Local APIC address 0xfee00000
[    0.024887] No NUMA configuration found
[    0.024889] Faking a node at [mem 0x0000000000000000-0x000000028f7fffff]
[    0.024905] NODE_DATA(0) allocated [mem 0x28f7d5000-0x28f7fffff]
[    0.025471] Zone ranges:
[    0.025472]   DMA      [mem 0x0000000000001000-0x0000000000ffffff]
[    0.025474]   DMA32    [mem 0x0000000001000000-0x00000000ffffffff]
[    0.025476]   Normal   [mem 0x0000000100000000-0x000000028f7fffff]
[    0.025478]   Device   empty
[    0.025479] Movable zone start for each node
[    0.025484] Early memory node ranges
[    0.025486]   node   0: [mem 0x0000000000001000-0x0000000000057fff]
[    0.025487]   node   0: [mem 0x0000000000059000-0x000000000009cfff]
[    0.025488]   node   0: [mem 0x0000000000100000-0x000000003fffffff]
[    0.025489]   node   0: [mem 0x0000000040400000-0x000000004f248fff]
[    0.025491]   node   0: [mem 0x000000004f24b000-0x000000004fee4fff]
[    0.025491]   node   0: [mem 0x000000004fee6000-0x000000005eaabfff]
[    0.025493]   node   0: [mem 0x000000005eaae000-0x0000000068419fff]
[    0.025493]   node   0: [mem 0x00000000695ff000-0x00000000695fffff]
[    0.025494]   node   0: [mem 0x0000000100000000-0x000000028f7fffff]
[    0.025959] Zeroed struct page in unavailable ranges: 34895 pages
[    0.025961] Initmem setup node 0 [mem 0x0000000000001000-0x000000028f7fffff]
[    0.025964] On node 0 totalpages: 2062257
[    0.025965]   DMA zone: 64 pages used for memmap
[    0.025966]   DMA zone: 21 pages reserved
[    0.025967]   DMA zone: 3995 pages, LIFO batch:0
[    0.026005]   DMA32 zone: 6593 pages used for memmap
[    0.026006]   DMA32 zone: 421910 pages, LIFO batch:63
[    0.032131]   Normal zone: 25568 pages used for memmap
[    0.032133]   Normal zone: 1636352 pages, LIFO batch:63
[    0.056923] Reserving Intel graphics memory at [mem 0x6b800000-0x6f7fffff]
[    0.057321] ACPI: PM-Timer IO Port: 0x1808
[    0.057323] ACPI: Local APIC address 0xfee00000
[    0.057334] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
[    0.057335] ACPI: LAPIC_NMI (acpi_id[0x02] high edge lint[0x1])
[    0.057336] ACPI: LAPIC_NMI (acpi_id[0x03] high edge lint[0x1])
[    0.057337] ACPI: LAPIC_NMI (acpi_id[0x04] high edge lint[0x1])
[    0.057338] ACPI: LAPIC_NMI (acpi_id[0x05] high edge lint[0x1])
[    0.057338] ACPI: LAPIC_NMI (acpi_id[0x06] high edge lint[0x1])
[    0.057339] ACPI: LAPIC_NMI (acpi_id[0x07] high edge lint[0x1])
[    0.057340] ACPI: LAPIC_NMI (acpi_id[0x08] high edge lint[0x1])
[    0.057341] ACPI: LAPIC_NMI (acpi_id[0x09] high edge lint[0x1])
[    0.057342] ACPI: LAPIC_NMI (acpi_id[0x0a] high edge lint[0x1])
[    0.057343] ACPI: LAPIC_NMI (acpi_id[0x0b] high edge lint[0x1])
[    0.057343] ACPI: LAPIC_NMI (acpi_id[0x0c] high edge lint[0x1])
[    0.057344] ACPI: LAPIC_NMI (acpi_id[0x0d] high edge lint[0x1])
[    0.057345] ACPI: LAPIC_NMI (acpi_id[0x0e] high edge lint[0x1])
[    0.057346] ACPI: LAPIC_NMI (acpi_id[0x0f] high edge lint[0x1])
[    0.057347] ACPI: LAPIC_NMI (acpi_id[0x10] high edge lint[0x1])
[    0.057375] IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-119
[    0.057379] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    0.057381] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[    0.057383] ACPI: IRQ0 used by override.
[    0.057384] ACPI: IRQ9 used by override.
[    0.057387] Using ACPI (MADT) for SMP configuration information
[    0.057390] ACPI: HPET id: 0x8086a201 base: 0xfed00000
[    0.057399] e820: update [mem 0x62211000-0x622a1fff] usable ==> reserved
[    0.057412] TSC deadline timer available
[    0.057413] smpboot: Allowing 8 CPUs, 0 hotplug CPUs
[    0.057445] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff]
[    0.057447] PM: hibernation: Registered nosave memory: [mem 0x00058000-0x00058fff]
[    0.057449] PM: hibernation: Registered nosave memory: [mem 0x0009d000-0x000fffff]
[    0.057452] PM: hibernation: Registered nosave memory: [mem 0x40000000-0x403fffff]
[    0.057454] PM: hibernation: Registered nosave memory: [mem 0x4f249000-0x4f24afff]
[    0.057456] PM: hibernation: Registered nosave memory: [mem 0x4fee5000-0x4fee5fff]
[    0.057459] PM: hibernation: Registered nosave memory: [mem 0x5eaac000-0x5eaacfff]
[    0.057459] PM: hibernation: Registered nosave memory: [mem 0x5eaad000-0x5eaadfff]
[    0.057462] PM: hibernation: Registered nosave memory: [mem 0x62211000-0x622a1fff]
[    0.057464] PM: hibernation: Registered nosave memory: [mem 0x6841a000-0x694f4fff]
[    0.057465] PM: hibernation: Registered nosave memory: [mem 0x694f5000-0x69599fff]
[    0.057466] PM: hibernation: Registered nosave memory: [mem 0x6959a000-0x695fefff]
[    0.057468] PM: hibernation: Registered nosave memory: [mem 0x69600000-0x6f7fffff]
[    0.057469] PM: hibernation: Registered nosave memory: [mem 0x6f800000-0xefffffff]
[    0.057470] PM: hibernation: Registered nosave memory: [mem 0xf0000000-0xf7ffffff]
[    0.057471] PM: hibernation: Registered nosave memory: [mem 0xf8000000-0xfe00ffff]
[    0.057472] PM: hibernation: Registered nosave memory: [mem 0xfe010000-0xfe010fff]
[    0.057472] PM: hibernation: Registered nosave memory: [mem 0xfe011000-0xffffffff]
[    0.057475] [mem 0x6f800000-0xefffffff] available for PCI devices
[    0.057476] Booting paravirtualized kernel on bare hardware
[    0.057480] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns
[    0.057487] setup_percpu: NR_CPUS:8192 nr_cpumask_bits:8 nr_cpu_ids:8 nr_node_ids:1
[    0.057866] percpu: Embedded 56 pages/cpu s192512 r8192 d28672 u262144
[    0.057877] pcpu-alloc: s192512 r8192 d28672 u262144 alloc=1*2097152
[    0.057878] pcpu-alloc: [0] 0 1 2 3 4 5 6 7 
[    0.057921] Built 1 zonelists, mobility grouping on.  Total pages: 2030011
[    0.057922] Policy zone: Normal
[    0.057923] Kernel command line: BOOT_IMAGE=/@/boot/vmlinuz-5.9.0+ root=UUID=523fd023-8a9d-45cc-90fc-7823d5a8636f ro rootflags=subvol=@ quiet splash vt.handoff=7
[    0.058865] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, linear)
[    0.059315] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, linear)
[    0.059435] mem auto-init: stack:off, heap alloc:on, heap free:off
[    0.107312] Memory: 7938248K/8249028K available (14339K kernel code, 2420K rwdata, 4784K rodata, 2568K init, 5112K bss, 310520K reserved, 0K cma-reserved)
[    0.107325] random: get_random_u64 called from __kmem_cache_create+0x2d/0x540 with crng_init=1
[    0.107622] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=1
[    0.107651] Kernel/User page tables isolation: enabled
[    0.107687] ftrace: allocating 43402 entries in 170 pages
[    0.140023] ftrace: allocated 170 pages with 4 groups
[    0.140229] rcu: Hierarchical RCU implementation.
[    0.140231] rcu: 	RCU restricting CPUs from NR_CPUS=8192 to nr_cpu_ids=8.
[    0.140233] 	Rude variant of Tasks RCU enabled.
[    0.140234] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies.
[    0.140235] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8
[    0.146440] NR_IRQS: 524544, nr_irqs: 2048, preallocated irqs: 16
[    0.147215] random: crng done (trusting CPU's manufacturer)
[    0.147263] Console: colour dummy device 80x25
[    0.147270] printk: console [tty0] enabled
[    0.147306] ACPI: Core revision 20200717
[    0.147931] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635855245 ns
[    0.148028] APIC: Switch to symmetric I/O mode setup
[    0.148032] DMAR: Host address width 39
[    0.148034] DMAR: DRHD base: 0x000000fed90000 flags: 0x0
[    0.148045] DMAR: dmar0: reg_base_addr fed90000 ver 1:0 cap 1c0000c40660462 ecap 19e2ff0505e
[    0.148047] DMAR: DRHD base: 0x000000fed91000 flags: 0x1
[    0.148054] DMAR: dmar1: reg_base_addr fed91000 ver 1:0 cap d2008c40660462 ecap f050da
[    0.148055] DMAR: RMRR base: 0x00000068a3f000 end: 0x00000068a5efff
[    0.148058] DMAR: RMRR base: 0x0000006b000000 end: 0x0000006f7fffff
[    0.148061] DMAR-IR: IOAPIC id 2 under DRHD base  0xfed91000 IOMMU 1
[    0.148062] DMAR-IR: HPET id 0 under DRHD base 0xfed91000
[    0.148063] DMAR-IR: Queued invalidation will be enabled to support x2apic and Intr-remapping.
[    0.149932] DMAR-IR: Enabled IRQ remapping in x2apic mode
[    0.149934] x2apic enabled
[    0.149949] Switched APIC routing to cluster x2apic.
[    0.154183] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[    0.171978] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x19f2297dd97, max_idle_ns: 440795236593 ns
[    0.171985] Calibrating delay loop (skipped), value calculated using timer frequency.. 3600.00 BogoMIPS (lpj=7200000)
[    0.171989] pid_max: default: 32768 minimum: 301
[    0.176032] LSM: Security Framework initializing
[    0.176050] Yama: becoming mindful.
[    0.176094] AppArmor: AppArmor initialized
[    0.176175] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, linear)
[    0.176200] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, linear)
[    0.176714] mce: CPU0: Thermal monitoring enabled (TM1)
[    0.176756] process: using mwait in idle threads
[    0.176760] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8
[    0.176761] Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0, 1GB 4
[    0.176765] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization
[    0.176767] Spectre V2 : Mitigation: Full generic retpoline
[    0.176768] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch
[    0.176768] Spectre V2 : Enabling Restricted Speculation for firmware calls
[    0.176772] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier
[    0.176773] Spectre V2 : User space: Mitigation: STIBP via seccomp and prctl
[    0.176775] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl and seccomp
[    0.176792] SRBDS: Mitigation: Microcode
[    0.176792] MDS: Mitigation: Clear CPU buffers
[    0.177120] Freeing SMP alternatives memory: 40K
[    0.182435] smpboot: CPU0: Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz (family: 0x6, model: 0x8e, stepping: 0xa)
[    0.182712] Performance Events: PEBS fmt3+, Skylake events, 32-deep LBR, full-width counters, Intel PMU driver.
[    0.182732] ... version:                4
[    0.182733] ... bit width:              48
[    0.182734] ... generic registers:      4
[    0.182735] ... value mask:             0000ffffffffffff
[    0.182736] ... max period:             00007fffffffffff
[    0.182737] ... fixed-purpose events:   3
[    0.182738] ... event mask:             000000070000000f
[    0.182805] rcu: Hierarchical SRCU implementation.
[    0.183928] NMI watchdog: Enabled. Permanently consumes one hw-PMU counter.
[    0.183981] smp: Bringing up secondary CPUs ...
[    0.183981] x86: Booting SMP configuration:
[    0.183981] .... node  #0, CPUs:      #1 #2 #3 #4
[    0.197098] 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.
[    0.197098]  #5 #6 #7
[    0.200708] smp: Brought up 1 node, 8 CPUs
[    0.200708] smpboot: Max logical packages: 1
[    0.200708] smpboot: Total of 8 processors activated (28800.00 BogoMIPS)
[    0.204541] devtmpfs: initialized
[    0.204541] x86/mm: Memory block size: 128MB
[    0.205397] PM: Registering ACPI NVS region [mem 0x5eaac000-0x5eaacfff] (4096 bytes)
[    0.205397] PM: Registering ACPI NVS region [mem 0x694f5000-0x69599fff] (675840 bytes)
[    0.205397] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.205397] futex hash table entries: 2048 (order: 5, 131072 bytes, linear)
[    0.205397] pinctrl core: initialized pinctrl subsystem
[    0.205397] PM: RTC time: 06:30:55, date: 2020-10-30
[    0.205397] NET: Registered protocol family 16
[    0.205397] DMA: preallocated 1024 KiB GFP_KERNEL pool for atomic allocations
[    0.205397] DMA: preallocated 1024 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations
[    0.205418] DMA: preallocated 1024 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations
[    0.205445] audit: initializing netlink subsys (disabled)
[    0.208000] audit: type=2000 audit(1604039455.060:1): state=initialized audit_enabled=0 res=1
[    0.208167] thermal_sys: Registered thermal governor 'fair_share'
[    0.208169] thermal_sys: Registered thermal governor 'bang_bang'
[    0.208170] thermal_sys: Registered thermal governor 'step_wise'
[    0.208171] thermal_sys: Registered thermal governor 'user_space'
[    0.208181] EISA bus registered
[    0.208199] cpuidle: using governor ladder
[    0.208199] cpuidle: using governor menu
[    0.208199] Simple Boot Flag at 0x47 set to 0x1
[    0.208199] ACPI: bus type PCI registered
[    0.208199] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[    0.208537] PCI: MMCONFIG for domain 0000 [bus 00-7f] at [mem 0xf0000000-0xf7ffffff] (base 0xf0000000)
[    0.208543] PCI: MMCONFIG at [mem 0xf0000000-0xf7ffffff] reserved in E820
[    0.208561] PCI: Using configuration type 1 for base access
[    0.208561] ENERGY_PERF_BIAS: Set to 'normal', was 'performance'
[    0.212064] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages
[    0.212064] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[    0.212141] ACPI: Added _OSI(Module Device)
[    0.212141] ACPI: Added _OSI(Processor Device)
[    0.212141] ACPI: Added _OSI(3.0 _SCP Extensions)
[    0.212141] ACPI: Added _OSI(Processor Aggregator Device)
[    0.212141] ACPI: Added _OSI(Linux-Dell-Video)
[    0.212141] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio)
[    0.212141] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics)
[    0.319555] ACPI: 15 ACPI AML tables successfully acquired and loaded
[    0.322617] ACPI: EC: EC started
[    0.322618] ACPI: EC: interrupt blocked
[    0.326849] ACPI: EC: EC_CMD/EC_SC=0x66, EC_DATA=0x62
[    0.326850] ACPI: EC: Boot ECDT EC used to handle transactions
[    0.330044] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
[    0.414168] ACPI: Dynamic OEM Table Load:
[    0.414194] ACPI: SSDT 0xFFFF89E1C58E3800 00058B (v02 PmRef  Cpu0Ist  00003000 INTL 20160527)
[    0.418195] ACPI: \_PR_.PR00: _OSC native thermal LVT Acked
[    0.418195] ACPI: Dynamic OEM Table Load:
[    0.418195] ACPI: SSDT 0xFFFF89E1C56A4000 0003FF (v02 PmRef  Cpu0Cst  00003001 INTL 20160527)
[    0.424797] ACPI: Dynamic OEM Table Load:
[    0.424811] ACPI: SSDT 0xFFFF89E1C570F540 0000BA (v02 PmRef  Cpu0Hwp  00003000 INTL 20160527)
[    0.424811] ACPI: Dynamic OEM Table Load:
[    0.424811] ACPI: SSDT 0xFFFF89E1C58E2000 000628 (v02 PmRef  HwpLvt   00003000 INTL 20160527)
[    0.428493] ACPI: Dynamic OEM Table Load:
[    0.428513] ACPI: SSDT 0xFFFF89E1C5933000 000D14 (v02 PmRef  ApIst    00003000 INTL 20160527)
[    0.437866] ACPI: Dynamic OEM Table Load:
[    0.437880] ACPI: SSDT 0xFFFF89E1C56A5000 000317 (v02 PmRef  ApHwp    00003000 INTL 20160527)
[    0.441533] ACPI: Dynamic OEM Table Load:
[    0.441546] ACPI: SSDT 0xFFFF89E1C56A4800 00030A (v02 PmRef  ApCst    00003000 INTL 20160527)
[    0.451514] ACPI: Interpreter enabled
[    0.451614] ACPI: (supports S0 S3 S4 S5)
[    0.451615] ACPI: Using IOAPIC for interrupt routing
[    0.451697] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[    0.453243] ACPI: Enabled 8 GPEs in block 00 to 7F
[    0.461664] ACPI: Power Resource [PUBS] (on)
[    0.462176] acpi PNP0C0A:01: ACPI dock station (docks/bays count: 1)
[    0.492201] ACPI: Power Resource [PC01] (on)
[    0.526759] ACPI: Power Resource [WRST] (on)
[    0.526759] ACPI: Power Resource [PXP] (on)
[    0.564576] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-7e])
[    0.564586] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3]
[    0.568972] acpi PNP0A08:00: _OSC: platform does not support [AER]
[    0.571399] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug SHPCHotplug PME PCIeCapability LTR]
[    0.575736] PCI host bridge to bus 0000:00
[    0.575740] pci_bus 0000:00: root bus resource [io  0x0000-0x0cf7 window]
[    0.575742] pci_bus 0000:00: root bus resource [io  0x0d00-0xffff window]
[    0.575744] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
[    0.575745] pci_bus 0000:00: root bus resource [mem 0x000c0000-0x000c3fff window]
[    0.575747] pci_bus 0000:00: root bus resource [mem 0x000c4000-0x000c7fff window]
[    0.575749] pci_bus 0000:00: root bus resource [mem 0x000c8000-0x000cbfff window]
[    0.575750] pci_bus 0000:00: root bus resource [mem 0x000cc000-0x000cffff window]
[    0.575752] pci_bus 0000:00: root bus resource [mem 0x000d0000-0x000d3fff window]
[    0.575753] pci_bus 0000:00: root bus resource [mem 0x000d4000-0x000d7fff window]
[    0.575755] pci_bus 0000:00: root bus resource [mem 0x000d8000-0x000dbfff window]
[    0.575756] pci_bus 0000:00: root bus resource [mem 0x000dc000-0x000dffff window]
[    0.575758] pci_bus 0000:00: root bus resource [mem 0x000e0000-0x000e3fff window]
[    0.575759] pci_bus 0000:00: root bus resource [mem 0x000e4000-0x000e7fff window]
[    0.575761] pci_bus 0000:00: root bus resource [mem 0x000e8000-0x000ebfff window]
[    0.575762] pci_bus 0000:00: root bus resource [mem 0x000ec000-0x000effff window]
[    0.575764] pci_bus 0000:00: root bus resource [mem 0x000f0000-0x000fffff window]
[    0.575765] pci_bus 0000:00: root bus resource [mem 0x6f800000-0xefffffff window]
[    0.575767] pci_bus 0000:00: root bus resource [mem 0xfd000000-0xfe7fffff window]
[    0.575769] pci_bus 0000:00: root bus resource [bus 00-7e]
[    0.575791] pci 0000:00:00.0: [8086:5914] type 00 class 0x060000
[    0.577545] pci 0000:00:02.0: [8086:5917] type 00 class 0x030000
[    0.577561] pci 0000:00:02.0: reg 0x10: [mem 0xe7000000-0xe7ffffff 64bit]
[    0.577571] pci 0000:00:02.0: reg 0x18: [mem 0xc0000000-0xcfffffff 64bit pref]
[    0.577578] pci 0000:00:02.0: reg 0x20: [io  0xe000-0xe03f]
[    0.577607] pci 0000:00:02.0: BAR 2: assigned to efifb
[    0.579381] pci 0000:00:04.0: [8086:1903] type 00 class 0x118000
[    0.579396] pci 0000:00:04.0: reg 0x10: [mem 0xe9240000-0xe9247fff 64bit]
[    0.581325] pci 0000:00:08.0: [8086:1911] type 00 class 0x088000
[    0.581342] pci 0000:00:08.0: reg 0x10: [mem 0xe9250000-0xe9250fff 64bit]
[    0.583106] pci 0000:00:14.0: [8086:9d2f] type 00 class 0x0c0330
[    0.583129] pci 0000:00:14.0: reg 0x10: [mem 0xe9220000-0xe922ffff 64bit]
[    0.583214] pci 0000:00:14.0: PME# supported from D3hot D3cold
[    0.585177] pci 0000:00:14.2: [8086:9d31] type 00 class 0x118000
[    0.585200] pci 0000:00:14.2: reg 0x10: [mem 0xe9251000-0xe9251fff 64bit]
[    0.587109] pci 0000:00:15.0: [8086:9d60] type 00 class 0x118000
[    0.587317] pci 0000:00:15.0: reg 0x10: [mem 0xe9252000-0xe9252fff 64bit]
[    0.590026] pci 0000:00:16.0: [8086:9d3a] type 00 class 0x078000
[    0.590065] pci 0000:00:16.0: reg 0x10: [mem 0xe9253000-0xe9253fff 64bit]
[    0.590206] pci 0000:00:16.0: PME# supported from D3hot
[    0.592095] pci 0000:00:1c.0: [8086:9d10] type 01 class 0x060400
[    0.592202] pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold
[    0.594135] pci 0000:00:1c.6: [8086:9d16] type 01 class 0x060400
[    0.594252] pci 0000:00:1c.6: PME# supported from D0 D3hot D3cold
[    0.594252] pci 0000:00:1d.0: [8086:9d18] type 01 class 0x060400
[    0.594252] pci 0000:00:1d.0: PME# supported from D0 D3hot D3cold
[    0.595774] pci 0000:00:1d.2: [8086:9d1a] type 01 class 0x060400
[    0.595878] pci 0000:00:1d.2: PME# supported from D0 D3hot D3cold
[    0.601799] pci 0000:00:1f.0: [8086:9d4e] type 00 class 0x060100
[    0.603765] pci 0000:00:1f.2: [8086:9d21] type 00 class 0x058000
[    0.603782] pci 0000:00:1f.2: reg 0x10: [mem 0xe924c000-0xe924ffff]
[    0.605679] pci 0000:00:1f.3: [8086:9d71] type 00 class 0x040300
[    0.605709] pci 0000:00:1f.3: reg 0x10: [mem 0xe9248000-0xe924bfff 64bit]
[    0.605750] pci 0000:00:1f.3: reg 0x20: [mem 0xe9230000-0xe923ffff 64bit]
[    0.605816] pci 0000:00:1f.3: PME# supported from D3hot D3cold
[    0.607692] pci 0000:00:1f.4: [8086:9d23] type 00 class 0x0c0500
[    0.607744] pci 0000:00:1f.4: reg 0x10: [mem 0xe9254000-0xe92540ff 64bit]
[    0.607796] pci 0000:00:1f.4: reg 0x20: [io  0xefa0-0xefbf]
[    0.607796] pci 0000:00:1f.6: [8086:15d8] type 00 class 0x020000
[    0.607796] pci 0000:00:1f.6: reg 0x10: [mem 0xe9200000-0xe921ffff]
[    0.607796] pci 0000:00:1f.6: PME# supported from D0 D3hot D3cold
[    0.607796] pci 0000:02:00.0: [10de:1d10] type 00 class 0x030200
[    0.607796] pci 0000:02:00.0: reg 0x10: [mem 0xe8000000-0xe8ffffff]
[    0.607811] pci 0000:02:00.0: reg 0x14: [mem 0x70000000-0x7fffffff 64bit pref]
[    0.607827] pci 0000:02:00.0: reg 0x1c: [mem 0x80000000-0x81ffffff 64bit pref]
[    0.607837] pci 0000:02:00.0: reg 0x24: [io  0xd000-0xd07f]
[    0.607848] pci 0000:02:00.0: reg 0x30: [mem 0xfff80000-0xffffffff pref]
[    0.607879] pci 0000:02:00.0: Enabling HDA controller
[    0.612301] pci 0000:00:1c.0: PCI bridge to [bus 02]
[    0.612305] pci 0000:00:1c.0:   bridge window [io  0xd000-0xdfff]
[    0.612309] pci 0000:00:1c.0:   bridge window [mem 0xe8000000-0xe8ffffff]
[    0.612315] pci 0000:00:1c.0:   bridge window [mem 0x70000000-0x81ffffff 64bit pref]
[    0.612791] pci 0000:04:00.0: [8086:24fd] type 00 class 0x028000
[    0.612884] pci 0000:04:00.0: reg 0x10: [mem 0xe9100000-0xe9101fff 64bit]
[    0.613468] pci 0000:04:00.0: PME# supported from D0 D3hot D3cold
[    0.614679] pci 0000:00:1c.6: PCI bridge to [bus 04]
[    0.614685] pci 0000:00:1c.6:   bridge window [mem 0xe9100000-0xe91fffff]
[    0.614786] pci 0000:07:00.0: [8086:15c0] type 01 class 0x060400
[    0.614850] pci 0000:07:00.0: enabling Extended Tags
[    0.614955] pci 0000:07:00.0: supports D1 D2
[    0.614957] pci 0000:07:00.0: PME# supported from D0 D1 D2 D3hot D3cold
[    0.615159] pci 0000:00:1d.0: PCI bridge to [bus 07-3f]
[    0.615165] pci 0000:00:1d.0:   bridge window [mem 0xd0000000-0xe60fffff]
[    0.615171] pci 0000:00:1d.0:   bridge window [mem 0x90000000-0xb1ffffff 64bit pref]
[    0.615273] pci 0000:08:00.0: [8086:15c0] type 01 class 0x060400
[    0.615341] pci 0000:08:00.0: enabling Extended Tags
[    0.615448] pci 0000:08:00.0: supports D1 D2
[    0.615449] pci 0000:08:00.0: PME# supported from D0 D1 D2 D3hot D3cold
[    0.615607] pci 0000:08:01.0: [8086:15c0] type 01 class 0x060400
[    0.615675] pci 0000:08:01.0: enabling Extended Tags
[    0.615785] pci 0000:08:01.0: supports D1 D2
[    0.615787] pci 0000:08:01.0: PME# supported from D0 D1 D2 D3hot D3cold
[    0.615941] pci 0000:08:02.0: [8086:15c0] type 01 class 0x060400
[    0.616010] pci 0000:08:02.0: enabling Extended Tags
[    0.616116] pci 0000:08:02.0: supports D1 D2
[    0.616118] pci 0000:08:02.0: PME# supported from D0 D1 D2 D3hot D3cold
[    0.616307] pci 0000:07:00.0: PCI bridge to [bus 08-3f]
[    0.616318] pci 0000:07:00.0:   bridge window [mem 0xd0000000-0xe60fffff]
[    0.616325] pci 0000:07:00.0:   bridge window [mem 0x90000000-0xb1ffffff 64bit pref]
[    0.616410] pci 0000:09:00.0: [8086:15bf] type 00 class 0x088000
[    0.616435] pci 0000:09:00.0: reg 0x10: [mem 0xe6000000-0xe603ffff]
[    0.616450] pci 0000:09:00.0: reg 0x14: [mem 0xe6040000-0xe6040fff]
[    0.616523] pci 0000:09:00.0: enabling Extended Tags
[    0.616646] pci 0000:09:00.0: supports D1 D2
[    0.616648] pci 0000:09:00.0: PME# supported from D0 D1 D2 D3hot D3cold
[    0.616843] pci 0000:08:00.0: PCI bridge to [bus 09]
[    0.616854] pci 0000:08:00.0:   bridge window [mem 0xe6000000-0xe60fffff]
[    0.616915] pci 0000:08:01.0: PCI bridge to [bus 0a-3e]
[    0.616926] pci 0000:08:01.0:   bridge window [mem 0xd0000000-0xe5efffff]
[    0.616933] pci 0000:08:01.0:   bridge window [mem 0x90000000-0xb1ffffff 64bit pref]
[    0.617041] pci 0000:3f:00.0: [8086:15c1] type 00 class 0x0c0330
[    0.617067] pci 0000:3f:00.0: reg 0x10: [mem 0xe5f00000-0xe5f0ffff]
[    0.617159] pci 0000:3f:00.0: enabling Extended Tags
[    0.617286] pci 0000:3f:00.0: supports D1 D2
[    0.617287] pci 0000:3f:00.0: PME# supported from D0 D1 D2 D3hot D3cold
[    0.617386] pci 0000:3f:00.0: 8.000 Gb/s available PCIe bandwidth, limited by 2.5 GT/s PCIe x4 link at 0000:08:02.0 (capable of 31.504 Gb/s with 8.0 GT/s PCIe x4 link)
[    0.617533] pci 0000:08:02.0: PCI bridge to [bus 3f]
[    0.617544] pci 0000:08:02.0:   bridge window [mem 0xe5f00000-0xe5ffffff]
[    0.617866] pci 0000:40:00.0: [17aa:0003] type 00 class 0x010802
[    0.617891] pci 0000:40:00.0: reg 0x10: [mem 0xe9000000-0xe9003fff 64bit]
[    0.618094] pci 0000:40:00.0: 15.752 Gb/s available PCIe bandwidth, limited by 8.0 GT/s PCIe x2 link at 0000:00:1d.2 (capable of 31.504 Gb/s with 8.0 GT/s PCIe x4 link)
[    0.618326] pci 0000:00:1d.2: PCI bridge to [bus 40]
[    0.618332] pci 0000:00:1d.2:   bridge window [mem 0xe9000000-0xe90fffff]
[    0.620664] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 10 *11 12 14 15)
[    0.620784] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 *10 11 12 14 15)
[    0.620899] ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 10 *11 12 14 15)
[    0.621013] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 10 *11 12 14 15)
[    0.621127] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 10 *11 12 14 15)
[    0.621241] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 10 *11 12 14 15)
[    0.621361] ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 10 *11 12 14 15)
[    0.621474] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 10 *11 12 14 15)
[    0.623989] ACPI: EC: interrupt unblocked
[    0.623989] ACPI: EC: event unblocked
[    0.623989] ACPI: EC: EC_CMD/EC_SC=0x66, EC_DATA=0x62
[    0.623989] ACPI: EC: GPE=0x16
[    0.623989] ACPI: \_SB_.PCI0.LPCB.EC__: Boot ECDT EC initialization complete
[    0.623989] ACPI: \_SB_.PCI0.LPCB.EC__: EC: Used to handle transactions and events
[    0.624007] iommu: Default domain type: Translated 
[    0.624014] pci 0000:00:02.0: vgaarb: VGA device added: decodes=io+mem,owns=mem,locks=none
[    0.624014] pci 0000:00:02.0: vgaarb: bridge control possible
[    0.624014] pci 0000:00:02.0: vgaarb: setting as boot device
[    0.624014] vgaarb: loaded
[    0.624280] SCSI subsystem initialized
[    0.624309] libata version 3.00 loaded.
[    0.624309] ACPI: bus type USB registered
[    0.624309] usbcore: registered new interface driver usbfs
[    0.624309] usbcore: registered new interface driver hub
[    0.624309] usbcore: registered new device driver usb
[    0.624309] pps_core: LinuxPPS API ver. 1 registered
[    0.624309] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.624309] PTP clock support registered
[    0.624309] EDAC MC: Ver: 3.0.0
[    0.628511] Registered efivars operations
[    0.628511] NetLabel: Initializing
[    0.628511] NetLabel:  domain hash size = 128
[    0.628511] NetLabel:  protocols = UNLABELED CIPSOv4 CALIPSO
[    0.628511] NetLabel:  unlabeled traffic allowed by default
[    0.628511] PCI: Using ACPI for IRQ routing
[    0.635982] PCI: pci_cache_line_size set to 64 bytes
[    0.639984] e820: reserve RAM buffer [mem 0x00058000-0x0005ffff]
[    0.639984] e820: reserve RAM buffer [mem 0x0009d000-0x0009ffff]
[    0.639984] e820: reserve RAM buffer [mem 0x4f249000-0x4fffffff]
[    0.639984] e820: reserve RAM buffer [mem 0x4fee5000-0x4fffffff]
[    0.639984] e820: reserve RAM buffer [mem 0x5eaac000-0x5fffffff]
[    0.639984] e820: reserve RAM buffer [mem 0x62211000-0x63ffffff]
[    0.639984] e820: reserve RAM buffer [mem 0x6841a000-0x6bffffff]
[    0.639984] e820: reserve RAM buffer [mem 0x69600000-0x6bffffff]
[    0.639984] e820: reserve RAM buffer [mem 0x28f800000-0x28fffffff]
[    0.641399] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0, 0, 0, 0, 0, 0
[    0.641405] hpet0: 8 comparators, 64-bit 24.000000 MHz counter
[    0.643471] clocksource: Switched to clocksource tsc-early
[    0.662179] VFS: Disk quotas dquot_6.6.0
[    0.662204] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    0.662388] AppArmor: AppArmor Filesystem Enabled
[    0.662443] pnp: PnP ACPI init
[    0.662639] system 00:00: [mem 0x40000000-0x403fffff] has been reserved
[    0.662648] system 00:00: Plug and Play ACPI device, IDs PNP0c02 (active)
[    0.662978] system 00:01: [mem 0xfd000000-0xfdabffff] has been reserved
[    0.662980] system 00:01: [mem 0xfdad0000-0xfdadffff] has been reserved
[    0.662982] system 00:01: [mem 0xfdb00000-0xfdffffff] has been reserved
[    0.662985] system 00:01: [mem 0xfe000000-0xfe01ffff] could not be reserved
[    0.662987] system 00:01: [mem 0xfe036000-0xfe03bfff] has been reserved
[    0.662989] system 00:01: [mem 0xfe03d000-0xfe3fffff] has been reserved
[    0.662991] system 00:01: [mem 0xfe410000-0xfe7fffff] has been reserved
[    0.662997] system 00:01: Plug and Play ACPI device, IDs PNP0c02 (active)
[    0.663713] system 00:02: [io  0xff00-0xfffe] has been reserved
[    0.663719] system 00:02: Plug and Play ACPI device, IDs PNP0c02 (active)
[    0.664860] system 00:03: [io  0x0680-0x069f] has been reserved
[    0.664862] system 00:03: [io  0xffff] has been reserved
[    0.664864] system 00:03: [io  0xffff] has been reserved
[    0.664866] system 00:03: [io  0xffff] has been reserved
[    0.664869] system 00:03: [io  0x1800-0x18fe] has been reserved
[    0.664870] system 00:03: [io  0x164e-0x164f] has been reserved
[    0.664877] system 00:03: Plug and Play ACPI device, IDs PNP0c02 (active)
[    0.665106] pnp 00:04: Plug and Play ACPI device, IDs PNP0b00 (active)
[    0.665193] system 00:05: [io  0x1854-0x1857] has been reserved
[    0.665199] system 00:05: Plug and Play ACPI device, IDs INT3f0d PNP0c02 (active)
[    0.665234] pnp 00:06: Plug and Play ACPI device, IDs LEN0071 PNP0303 (active)
[    0.665264] pnp 00:07: Plug and Play ACPI device, IDs LEN009b PNP0f13 (active)
[    0.665499] system 00:08: [io  0x1800-0x189f] could not be reserved
[    0.665501] system 00:08: [io  0x0800-0x087f] has been reserved
[    0.665504] system 00:08: [io  0x0880-0x08ff] has been reserved
[    0.665506] system 00:08: [io  0x0900-0x097f] has been reserved
[    0.665508] system 00:08: [io  0x0980-0x09ff] has been reserved
[    0.665510] system 00:08: [io  0x0a00-0x0a7f] has been reserved
[    0.665512] system 00:08: [io  0x0a80-0x0aff] has been reserved
[    0.665514] system 00:08: [io  0x0b00-0x0b7f] has been reserved
[    0.665516] system 00:08: [io  0x0b80-0x0bff] has been reserved
[    0.665518] system 00:08: [io  0x15e0-0x15ef] has been reserved
[    0.665520] system 00:08: [io  0x1600-0x167f] could not be reserved
[    0.665522] system 00:08: [io  0x1640-0x165f] could not be reserved
[    0.665525] system 00:08: [mem 0xf0000000-0xf7ffffff] has been reserved
[    0.665529] system 00:08: [mem 0xfed10000-0xfed13fff] has been reserved
[    0.665531] system 00:08: [mem 0xfed18000-0xfed18fff] has been reserved
[    0.665533] system 00:08: [mem 0xfed19000-0xfed19fff] has been reserved
[    0.665535] system 00:08: [mem 0xfeb00000-0xfebfffff] has been reserved
[    0.665537] system 00:08: [mem 0xfed20000-0xfed3ffff] has been reserved
[    0.665540] system 00:08: [mem 0xfed90000-0xfed93fff] could not be reserved
[    0.665542] system 00:08: [mem 0xeffe0000-0xefffffff] has been reserved
[    0.665549] system 00:08: Plug and Play ACPI device, IDs PNP0c02 (active)
[    0.668413] system 00:09: Plug and Play ACPI device, IDs PNP0c02 (active)
[    0.670496] system 00:0a: [mem 0xfed10000-0xfed17fff] could not be reserved
[    0.670499] system 00:0a: [mem 0xfed18000-0xfed18fff] has been reserved
[    0.670501] system 00:0a: [mem 0xfed19000-0xfed19fff] has been reserved
[    0.670503] system 00:0a: [mem 0xf0000000-0xf7ffffff] has been reserved
[    0.670505] system 00:0a: [mem 0xfed20000-0xfed3ffff] has been reserved
[    0.670507] system 00:0a: [mem 0xfed90000-0xfed93fff] could not be reserved
[    0.670509] system 00:0a: [mem 0xfed45000-0xfed8ffff] has been reserved
[    0.670511] system 00:0a: [mem 0xff000000-0xffffffff] has been reserved
[    0.670513] system 00:0a: [mem 0xfee00000-0xfeefffff] has been reserved
[    0.670516] system 00:0a: [mem 0xeffe0000-0xefffffff] has been reserved
[    0.670522] system 00:0a: Plug and Play ACPI device, IDs PNP0c02 (active)
[    0.671214] system 00:0b: [mem 0x00000000-0x0009ffff] could not be reserved
[    0.671217] system 00:0b: [mem 0x000f0000-0x000fffff] could not be reserved
[    0.671219] system 00:0b: [mem 0x00100000-0x6f7fffff] could not be reserved
[    0.671222] system 00:0b: [mem 0xfec00000-0xfed3ffff] could not be reserved
[    0.671224] system 00:0b: [mem 0xfed4c000-0xffffffff] could not be reserved
[    0.671230] system 00:0b: Plug and Play ACPI device, IDs PNP0c01 (active)
[    0.671542] pnp: PnP ACPI: found 12 devices
[    0.678213] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns
[    0.678316] NET: Registered protocol family 2
[    0.678514] tcp_listen_portaddr_hash hash table entries: 4096 (order: 4, 65536 bytes, linear)
[    0.678604] TCP established hash table entries: 65536 (order: 7, 524288 bytes, linear)
[    0.678832] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes, linear)
[    0.678992] TCP: Hash tables configured (established 65536 bind 65536)
[    0.679058] UDP hash table entries: 4096 (order: 5, 131072 bytes, linear)
[    0.679100] UDP-Lite hash table entries: 4096 (order: 5, 131072 bytes, linear)
[    0.679184] NET: Registered protocol family 1
[    0.679190] NET: Registered protocol family 44
[    0.679198] pci 0000:02:00.0: can't claim BAR 6 [mem 0xfff80000-0xffffffff pref]: no compatible bridge window
[    0.679209] pci 0000:08:01.0: bridge window [io  0x1000-0x0fff] to [bus 0a-3e] add_size 1000
[    0.679214] pci 0000:07:00.0: bridge window [io  0x1000-0x0fff] to [bus 08-3f] add_size 1000
[    0.679216] pci 0000:00:1d.0: bridge window [io  0x1000-0x0fff] to [bus 07-3f] add_size 2000
[    0.679226] pci 0000:00:1d.0: BAR 13: assigned [io  0x2000-0x3fff]
[    0.679232] pci 0000:02:00.0: BAR 6: no space for [mem size 0x00080000 pref]
[    0.679234] pci 0000:02:00.0: BAR 6: failed to assign [mem size 0x00080000 pref]
[    0.679237] pci 0000:00:1c.0: PCI bridge to [bus 02]
[    0.679240] pci 0000:00:1c.0:   bridge window [io  0xd000-0xdfff]
[    0.679246] pci 0000:00:1c.0:   bridge window [mem 0xe8000000-0xe8ffffff]
[    0.679250] pci 0000:00:1c.0:   bridge window [mem 0x70000000-0x81ffffff 64bit pref]
[    0.679256] pci 0000:00:1c.6: PCI bridge to [bus 04]
[    0.679263] pci 0000:00:1c.6:   bridge window [mem 0xe9100000-0xe91fffff]
[    0.679273] pci 0000:07:00.0: BAR 13: assigned [io  0x2000-0x2fff]
[    0.679276] pci 0000:08:01.0: BAR 13: assigned [io  0x2000-0x2fff]
[    0.679278] pci 0000:08:00.0: PCI bridge to [bus 09]
[    0.679285] pci 0000:08:00.0:   bridge window [mem 0xe6000000-0xe60fffff]
[    0.679296] pci 0000:08:01.0: PCI bridge to [bus 0a-3e]
[    0.679299] pci 0000:08:01.0:   bridge window [io  0x2000-0x2fff]
[    0.679306] pci 0000:08:01.0:   bridge window [mem 0xd0000000-0xe5efffff]
[    0.679310] pci 0000:08:01.0:   bridge window [mem 0x90000000-0xb1ffffff 64bit pref]
[    0.679318] pci 0000:08:02.0: PCI bridge to [bus 3f]
[    0.679325] pci 0000:08:02.0:   bridge window [mem 0xe5f00000-0xe5ffffff]
[    0.679336] pci 0000:07:00.0: PCI bridge to [bus 08-3f]
[    0.679339] pci 0000:07:00.0:   bridge window [io  0x2000-0x2fff]
[    0.679345] pci 0000:07:00.0:   bridge window [mem 0xd0000000-0xe60fffff]
[    0.679350] pci 0000:07:00.0:   bridge window [mem 0x90000000-0xb1ffffff 64bit pref]
[    0.679357] pci 0000:00:1d.0: PCI bridge to [bus 07-3f]
[    0.679360] pci 0000:00:1d.0:   bridge window [io  0x2000-0x3fff]
[    0.679364] pci 0000:00:1d.0:   bridge window [mem 0xd0000000-0xe60fffff]
[    0.679368] pci 0000:00:1d.0:   bridge window [mem 0x90000000-0xb1ffffff 64bit pref]
[    0.679374] pci 0000:00:1d.2: PCI bridge to [bus 40]
[    0.679379] pci 0000:00:1d.2:   bridge window [mem 0xe9000000-0xe90fffff]
[    0.679388] pci_bus 0000:00: resource 4 [io  0x0000-0x0cf7 window]
[    0.679390] pci_bus 0000:00: resource 5 [io  0x0d00-0xffff window]
[    0.679392] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window]
[    0.679394] pci_bus 0000:00: resource 7 [mem 0x000c0000-0x000c3fff window]
[    0.679396] pci_bus 0000:00: resource 8 [mem 0x000c4000-0x000c7fff window]
[    0.679398] pci_bus 0000:00: resource 9 [mem 0x000c8000-0x000cbfff window]
[    0.679399] pci_bus 0000:00: resource 10 [mem 0x000cc000-0x000cffff window]
[    0.679401] pci_bus 0000:00: resource 11 [mem 0x000d0000-0x000d3fff window]
[    0.679403] pci_bus 0000:00: resource 12 [mem 0x000d4000-0x000d7fff window]
[    0.679404] pci_bus 0000:00: resource 13 [mem 0x000d8000-0x000dbfff window]
[    0.679406] pci_bus 0000:00: resource 14 [mem 0x000dc000-0x000dffff window]
[    0.679408] pci_bus 0000:00: resource 15 [mem 0x000e0000-0x000e3fff window]
[    0.679409] pci_bus 0000:00: resource 16 [mem 0x000e4000-0x000e7fff window]
[    0.679411] pci_bus 0000:00: resource 17 [mem 0x000e8000-0x000ebfff window]
[    0.679413] pci_bus 0000:00: resource 18 [mem 0x000ec000-0x000effff window]
[    0.679414] pci_bus 0000:00: resource 19 [mem 0x000f0000-0x000fffff window]
[    0.679416] pci_bus 0000:00: resource 20 [mem 0x6f800000-0xefffffff window]
[    0.679418] pci_bus 0000:00: resource 21 [mem 0xfd000000-0xfe7fffff window]
[    0.679420] pci_bus 0000:02: resource 0 [io  0xd000-0xdfff]
[    0.679422] pci_bus 0000:02: resource 1 [mem 0xe8000000-0xe8ffffff]
[    0.679423] pci_bus 0000:02: resource 2 [mem 0x70000000-0x81ffffff 64bit pref]
[    0.679425] pci_bus 0000:04: resource 1 [mem 0xe9100000-0xe91fffff]
[    0.679427] pci_bus 0000:07: resource 0 [io  0x2000-0x3fff]
[    0.679429] pci_bus 0000:07: resource 1 [mem 0xd0000000-0xe60fffff]
[    0.679430] pci_bus 0000:07: resource 2 [mem 0x90000000-0xb1ffffff 64bit pref]
[    0.679432] pci_bus 0000:08: resource 0 [io  0x2000-0x2fff]
[    0.679434] pci_bus 0000:08: resource 1 [mem 0xd0000000-0xe60fffff]
[    0.679435] pci_bus 0000:08: resource 2 [mem 0x90000000-0xb1ffffff 64bit pref]
[    0.679437] pci_bus 0000:09: resource 1 [mem 0xe6000000-0xe60fffff]
[    0.679440] pci_bus 0000:0a: resource 0 [io  0x2000-0x2fff]
[    0.679442] pci_bus 0000:0a: resource 1 [mem 0xd0000000-0xe5efffff]
[    0.679443] pci_bus 0000:0a: resource 2 [mem 0x90000000-0xb1ffffff 64bit pref]
[    0.679445] pci_bus 0000:3f: resource 1 [mem 0xe5f00000-0xe5ffffff]
[    0.679447] pci_bus 0000:40: resource 1 [mem 0xe9000000-0xe90fffff]
[    0.679772] pci 0000:00:02.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff]
[    0.681476] PCI: CLS 128 bytes, default 64
[    0.681538] Unpacking initramfs...
[    0.723769] Initramfs unpacking failed: Decoding failed
[    0.723785] fbcon: Taking over console
[    0.726544] Freeing initrd memory: 13480K
[    0.726619] PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
[    0.726621] software IO TLB: mapped [mem 0x63ac5000-0x67ac5000] (64MB)
[    0.726812] resource sanity check: requesting [mem 0xfed10000-0xfed15fff], which spans more than pnp 00:08 [mem 0xfed10000-0xfed13fff]
[    0.726820] caller snb_uncore_imc_init_box+0x78/0xc0 mapping multiple BARs
[    0.727266] check: Scanning for low memory corruption every 60 seconds
[    0.728178] Initialise system trusted keyrings
[    0.728210] Key type blacklist registered
[    0.728279] workingset: timestamp_bits=36 max_order=21 bucket_order=0
[    0.730455] zbud: loaded
[    0.730951] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.731187] fuse: init (API version 7.31)
[    0.731473] integrity: Platform Keyring initialized
[    0.748948] Key type asymmetric registered
[    0.748950] Asymmetric key parser 'x509' registered
[    0.748964] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 245)
[    0.749033] io scheduler mq-deadline registered
[    0.749685] pcieport 0000:00:1c.0: PME: Signaling with IRQ 122
[    0.750071] pcieport 0000:00:1c.6: PME: Signaling with IRQ 123
[    0.750230] pcieport 0000:00:1d.0: PME: Signaling with IRQ 124
[    0.750264] pcieport 0000:00:1d.0: pciehp: Slot #8 AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+ Surprise+ Interlock- NoCompl+ IbPresDis- LLActRep+
[    0.750707] pcieport 0000:00:1d.2: PME: Signaling with IRQ 125
[    0.751333] pcieport 0000:08:01.0: pciehp: Slot #1 AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+ Surprise+ Interlock- NoCompl+ IbPresDis- LLActRep+
[    0.751763] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
[    0.751869] efifb: probing for efifb
[    0.751915] efifb: showing boot graphics
[    0.753709] efifb: framebuffer at 0xc0000000, using 8100k, total 8100k
[    0.753711] efifb: mode is 1920x1080x32, linelength=7680, pages=1
[    0.753712] efifb: scrolling: redraw
[    0.753714] efifb: Truecolor: size=8:8:8:8, shift=24:16:8:0
[    0.753849] Console: switching to colour frame buffer device 240x67
[    0.763827] fb0: EFI VGA frame buffer device
[    0.763842] intel_idle: MWAIT substates: 0x11142120
[    0.763843] intel_idle: v0.5.1 model 0x8E
[    0.764632] intel_idle: Local APIC timer is reliable in all C-states
[    0.765269] ACPI: AC Adapter [AC] (off-line)
[    0.765439] input: Sleep Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input0
[    0.765495] ACPI: Sleep Button [SLPB]
[    0.765548] input: Lid Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input1
[    0.765585] ACPI: Lid Switch [LID]
[    0.765635] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input2
[    0.765671] ACPI: Power Button [PWRF]
[    0.773085] thermal LNXTHERM:00: registered as thermal_zone0
[    0.773087] ACPI: Thermal Zone [THM0] (41 C)
[    0.773506] Serial: 8250/16550 driver, 32 ports, IRQ sharing enabled
[    0.777417] Linux agpgart interface v0.103
[    0.780257] tpm_tis STM7304:00: 2.0 TPM (device-id 0x0, rev-id 78)
[    0.804811] battery: ACPI: Battery Slot [BAT0] (battery present)
[    0.810760] loop: module loaded
[    0.811273] libphy: Fixed MDIO Bus: probed
[    0.811274] tun: Universal TUN/TAP device driver, 1.6
[    0.811403] PPP generic driver version 2.4.2
[    0.811601] VFIO - User Level meta-driver version: 0.3
[    0.811759] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.811764] ehci-pci: EHCI PCI platform driver
[    0.811785] ehci-platform: EHCI generic platform driver
[    0.811808] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    0.811817] ohci-pci: OHCI PCI platform driver
[    0.811833] ohci-platform: OHCI generic platform driver
[    0.811851] uhci_hcd: USB Universal Host Controller Interface driver
[    0.812256] xhci_hcd 0000:00:14.0: xHCI Host Controller
[    0.812266] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 1
[    0.813437] xhci_hcd 0000:00:14.0: hcc params 0x200077c1 hci version 0x100 quirks 0x0000000081109810
[    0.813808] xhci_hcd 0000:00:14.0: cache line size of 128 is not supported
[    0.814165] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.09
[    0.814168] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.814170] usb usb1: Product: xHCI Host Controller
[    0.814172] usb usb1: Manufacturer: Linux 5.9.0+ xhci-hcd
[    0.814174] usb usb1: SerialNumber: 0000:00:14.0
[    0.814406] hub 1-0:1.0: USB hub found
[    0.814439] hub 1-0:1.0: 12 ports detected
[    0.816950] xhci_hcd 0000:00:14.0: xHCI Host Controller
[    0.816955] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 2
[    0.816960] xhci_hcd 0000:00:14.0: Host supports USB 3.0 SuperSpeed
[    0.817023] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.09
[    0.817025] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.817027] usb usb2: Product: xHCI Host Controller
[    0.817028] usb usb2: Manufacturer: Linux 5.9.0+ xhci-hcd
[    0.817030] usb usb2: SerialNumber: 0000:00:14.0
[    0.817245] hub 2-0:1.0: USB hub found
[    0.817272] hub 2-0:1.0: 6 ports detected
[    0.818442] usb: port power management may be unreliable
[    0.819040] xhci_hcd 0000:3f:00.0: xHCI Host Controller
[    0.819047] xhci_hcd 0000:3f:00.0: new USB bus registered, assigned bus number 3
[    0.820273] xhci_hcd 0000:3f:00.0: hcc params 0x200077c1 hci version 0x110 quirks 0x0000000000009810
[    0.820664] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.09
[    0.820666] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.820668] usb usb3: Product: xHCI Host Controller
[    0.820670] usb usb3: Manufacturer: Linux 5.9.0+ xhci-hcd
[    0.820672] usb usb3: SerialNumber: 0000:3f:00.0
[    0.820954] hub 3-0:1.0: USB hub found
[    0.820969] hub 3-0:1.0: 2 ports detected
[    0.822046] xhci_hcd 0000:3f:00.0: xHCI Host Controller
[    0.822052] xhci_hcd 0000:3f:00.0: new USB bus registered, assigned bus number 4
[    0.822056] xhci_hcd 0000:3f:00.0: Host supports USB 3.1 Enhanced SuperSpeed
[    0.822114] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.09
[    0.822116] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.822117] usb usb4: Product: xHCI Host Controller
[    0.822119] usb usb4: Manufacturer: Linux 5.9.0+ xhci-hcd
[    0.822121] usb usb4: SerialNumber: 0000:3f:00.0
[    0.822335] hub 4-0:1.0: USB hub found
[    0.822347] hub 4-0:1.0: 2 ports detected
[    0.823251] i8042: PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12
[    0.825942] serio: i8042 KBD port at 0x60,0x64 irq 1
[    0.825949] serio: i8042 AUX port at 0x60,0x64 irq 12
[    0.826265] mousedev: PS/2 mouse device common for all mice
[    0.826767] rtc_cmos 00:04: RTC can wake from S4
[    0.827550] rtc_cmos 00:04: registered as rtc0
[    0.827800] rtc_cmos 00:04: setting system clock to 2020-10-30T06:30:56 UTC (1604039456)
[    0.827857] rtc_cmos 00:04: alarms up to one month, y3k, 242 bytes nvram, hpet irqs
[    0.827870] i2c /dev entries driver
[    0.827944] device-mapper: uevent: version 1.0.3
[    0.828174] device-mapper: ioctl: 4.42.0-ioctl (2020-02-27) initialised: dm-devel@redhat.com
[    0.828220] platform eisa.0: Probing EISA bus 0
[    0.828242] platform eisa.0: EISA: Cannot allocate resource for mainboard
[    0.828244] platform eisa.0: Cannot allocate resource for EISA slot 1
[    0.828246] platform eisa.0: Cannot allocate resource for EISA slot 2
[    0.828248] platform eisa.0: Cannot allocate resource for EISA slot 3
[    0.828249] platform eisa.0: Cannot allocate resource for EISA slot 4
[    0.828251] platform eisa.0: Cannot allocate resource for EISA slot 5
[    0.828253] platform eisa.0: Cannot allocate resource for EISA slot 6
[    0.828255] platform eisa.0: Cannot allocate resource for EISA slot 7
[    0.828256] platform eisa.0: Cannot allocate resource for EISA slot 8
[    0.828258] platform eisa.0: EISA: Detected 0 cards
[    0.828262] intel_pstate: Intel P-state driver initializing
[    0.828623] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input3
[    0.829362] intel_pstate: HWP enabled
[    0.829898] ledtrig-cpu: registered to indicate activity on CPUs
[    0.829901] EFI Variables Facility v0.08 2004-May-17
[    0.838286] battery: ACPI: Battery Slot [BAT1] (battery present)
[    0.880139] intel_pmc_core INT33A1:00:  initialized
[    0.880205] drop_monitor: Initializing network drop monitor service
[    0.880322] NET: Registered protocol family 10
[    0.887116] Segment Routing with IPv6
[    0.887133] NET: Registered protocol family 17
[    0.887250] Key type dns_resolver registered
[    0.887626] microcode: sig=0x806ea, pf=0x80, revision=0xd6
[    0.887666] microcode: Microcode Update Driver: v2.2.
[    0.887669] IPI shorthand broadcast: enabled
[    0.887676] sched_clock: Marking stable (886500827, 1162293)->(897701991, -10038871)
[    0.887728] registered taskstats version 1
[    0.887737] Loading compiled-in X.509 certificates
[    0.888237] Loaded X.509 cert 'Build time autogenerated kernel key: 54aec3f9a7a83dc4da728839484e01ad5628cca8'
[    0.888265] zswap: loaded using pool lzo/zbud
[    0.888403] Key type ._fscrypt registered
[    0.888404] Key type .fscrypt registered
[    0.888404] Key type fscrypt-provisioning registered
[    0.888452] Key type trusted registered
[    0.891406] Key type encrypted registered
[    0.891408] AppArmor: AppArmor sha1 policy hashing enabled
[    0.892835] integrity: Loading X.509 certificate: UEFI:MokListRT
[    0.892856] integrity: Loaded X.509 cert 'SomeOrg: shim: a01ee84e9b37ace407961cc468c5909447878469'
[    0.892856] integrity: Loading X.509 certificate: UEFI:MokListRT
[    0.893428] integrity: Loaded X.509 cert 'Canonical Ltd. Master Certificate Authority: ad91990bc22ab1f517048c23b6655a268e345a63'
[    0.893820] ima: Allocated hash algorithm: sha1
[    0.928545] ima: No architecture policies found
[    0.928564] evm: Initialising EVM extended attributes:
[    0.928564] evm: security.selinux
[    0.928565] evm: security.SMACK64
[    0.928565] evm: security.SMACK64EXEC
[    0.928565] evm: security.SMACK64TRANSMUTE
[    0.928566] evm: security.SMACK64MMAP
[    0.928566] evm: security.apparmor
[    0.928566] evm: security.ima
[    0.928566] evm: security.capability
[    0.928567] evm: HMAC attrs: 0x1
[    0.929795] PM:   Magic number: 8:392:520
[    0.930035] RAS: Correctable Errors collector initialized.
[    0.930933] Freeing unused decrypted memory: 2040K
[    0.931293] Freeing unused kernel image (initmem) memory: 2568K
[    1.016406] Write protecting the kernel read-only data: 22528k
[    1.016983] Freeing unused kernel image (text/rodata gap) memory: 2044K
[    1.017354] Freeing unused kernel image (rodata/data gap) memory: 1360K
[    1.062780] x86/mm: Checked W+X mappings: passed, no W+X pages found.
[    1.062781] x86/mm: Checking user space page tables
[    1.106749] x86/mm: Checked W+X mappings: passed, no W+X pages found.
[    1.106753] Run /init as init process
[    1.106754]   with arguments:
[    1.106754]     /init
[    1.106755]     splash
[    1.106755]   with environment:
[    1.106755]     HOME=/
[    1.106756]     TERM=linux
[    1.106756]     BOOT_IMAGE=/@/boot/vmlinuz-5.9.0+
[    1.152050] usb 1-7: new full-speed USB device number 2 using xhci_hcd
[    1.195080] intel-lpss 0000:00:15.0: enabling device (0000 -> 0002)
[    1.195320] idma64 idma64.0: Found Intel integrated DMA 64-bit
[    1.198994] nvme nvme0: pci function 0000:40:00.0
[    1.199626] i801_smbus 0000:00:1f.4: enabling device (0000 -> 0003)
[    1.200389] i801_smbus 0000:00:1f.4: SPD Write Disable is set
[    1.200420] i801_smbus 0000:00:1f.4: SMBus using PCI interrupt
[    1.203929] e1000e: Intel(R) PRO/1000 Network Driver
[    1.203930] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[    1.204463] e1000e 0000:00:1f.6: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode
[    1.211311] i2c i2c-0: 1/2 memory slots populated (from DMI)
[    1.211672] i2c i2c-0: Successfully instantiated SPD at 0x50
[    1.213566] nvme nvme0: 8/0/0 default/read/poll queues
[    1.221101]  nvme0n1: p1 p2
[    1.301266] usb 1-7: New USB device found, idVendor=8087, idProduct=0a2b, bcdDevice= 0.10
[    1.301267] usb 1-7: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[    1.428277] usb 2-3: new SuperSpeed Gen 1 USB device number 2 using xhci_hcd
[    1.451435] e1000e 0000:00:1f.6 0000:00:1f.6 (uninitialized): registered PHC clock
[    1.460566] usb 2-3: New USB device found, idVendor=0bda, idProduct=0316, bcdDevice= 2.04
[    1.460567] usb 2-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    1.460568] usb 2-3: Product: USB3.0-CRW
[    1.460569] usb 2-3: Manufacturer: Generic
[    1.460569] usb 2-3: SerialNumber: 20120501030900000
[    1.471780] usb-storage 2-3:1.0: USB Mass Storage device detected
[    1.471904] scsi host0: usb-storage 2-3:1.0
[    1.471995] usbcore: registered new interface driver usb-storage
[    1.472879] usbcore: registered new interface driver uas
[    1.522240] e1000e 0000:00:1f.6 eth0: (PCI Express:2.5GT/s:Width x1) 54:ee:75:e8:57:0d
[    1.522241] e1000e 0000:00:1f.6 eth0: Intel(R) PRO/1000 Network Connection
[    1.522312] e1000e 0000:00:1f.6 eth0: MAC: 12, PHY: 12, PBA No: 1000FF-0FF
[    1.523080] e1000e 0000:00:1f.6 enp0s31f6: renamed from eth0
[    1.576302] usb 1-8: new high-speed USB device number 3 using xhci_hcd
[    1.748222] tsc: Refined TSC clocksource calibration: 1799.990 MHz
[    1.748226] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x19f22049b0a, max_idle_ns: 440795294996 ns
[    1.748408] clocksource: Switched to clocksource tsc
[    1.761978] usb 1-8: New USB device found, idVendor=13d3, idProduct=56a6, bcdDevice=17.11
[    1.761980] usb 1-8: New USB device strings: Mfr=3, Product=1, SerialNumber=2
[    1.761980] usb 1-8: Product: Integrated Camera
[    1.761981] usb 1-8: Manufacturer: Azurewave
[    1.761982] usb 1-8: SerialNumber: 0001
[    1.892082] usb 1-9: new full-speed USB device number 4 using xhci_hcd
[    2.025038] psmouse serio1: synaptics: queried max coordinates: x [..5676], y [..4690]
[    2.042550] usb 1-9: New USB device found, idVendor=06cb, idProduct=009a, bcdDevice= 1.64
[    2.042551] usb 1-9: New USB device strings: Mfr=0, Product=0, SerialNumber=1
[    2.042552] usb 1-9: SerialNumber: 8d97a807073f
[    2.060131] psmouse serio1: synaptics: queried min coordinates: x [1266..], y [1162..]
[    2.060137] psmouse serio1: synaptics: Trying to set up SMBus access
[    2.140034] raid6: avx2x4   gen() 30510 MB/s
[    2.208035] raid6: avx2x4   xor()  7715 MB/s
[    2.276034] raid6: avx2x2   gen() 34747 MB/s
[    2.344036] raid6: avx2x2   xor() 22058 MB/s
[    2.412036] raid6: avx2x1   gen() 29969 MB/s
[    2.480035] raid6: avx2x1   xor() 19041 MB/s
[    2.490022] scsi 0:0:0:0: Direct-Access     Generic- SD/MMC           1.00 PQ: 0 ANSI: 6
[    2.490240] sd 0:0:0:0: Attached scsi generic sg0 type 0
[    2.548034] raid6: sse2x4   gen() 14482 MB/s
[    2.616037] raid6: sse2x4   xor()  7716 MB/s
[    2.684037] raid6: sse2x2   gen() 14790 MB/s
[    2.752037] raid6: sse2x2   xor()  9425 MB/s
[    2.820034] raid6: sse2x1   gen() 11102 MB/s
[    2.888036] raid6: sse2x1   xor()  6436 MB/s
[    2.888037] raid6: using algorithm avx2x2 gen() 34747 MB/s
[    2.888037] raid6: .... xor() 22058 MB/s, rmw enabled
[    2.888038] raid6: using avx2x2 recovery algorithm
[    2.890242] xor: automatically using best checksumming function   avx       
[    2.906471] Btrfs loaded, crc32c=crc32c-intel
[    2.917413] BTRFS: device fsid 523fd023-8a9d-45cc-90fc-7823d5a8636f devid 1 transid 28763 /dev/nvme0n1p2 scanned by btrfs (237)
[    2.933410] BTRFS info (device nvme0n1p2): disk space caching is enabled
[    2.933411] BTRFS info (device nvme0n1p2): has skinny extents
[    2.937368] sd 0:0:0:0: [sda] Attached SCSI removable disk
[    2.946483] BTRFS info (device nvme0n1p2): enabling ssd optimizations
[    3.041197] systemd[1]: Inserted module 'autofs4'
[    3.146707] systemd[1]: systemd 246.6-1ubuntu1 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +ZSTD +SECCOMP +BLKID +ELFUTILS +KMOD +IDN2 -IDN +PCRE2 default-hierarchy=hybrid)
[    3.164469] systemd[1]: Detected architecture x86-64.
[    3.180951] systemd[1]: Set hostname to <ThinkPad-T580>.
[    3.260977] systemd[1]: /lib/systemd/system/dbus.service:12: Unit configured to use KillMode=none. This is unsafe, as it disables systemd's process lifecycle management for the service. Please update your service to use a safer KillMode=, such as 'mixed' or 'control-group'. Support for KillMode=none is deprecated and will eventually be removed.
[    3.278390] systemd[1]: /lib/systemd/system/plymouth-start.service:17: Unit configured to use KillMode=none. This is unsafe, as it disables systemd's process lifecycle management for the service. Please update your service to use a safer KillMode=, such as 'mixed' or 'control-group'. Support for KillMode=none is deprecated and will eventually be removed.
[    3.292693] systemd[1]: Queued start job for default target Graphical Interface.
[    3.293724] systemd[1]: Created slice system-modprobe.slice.
[    3.293899] systemd[1]: Created slice system-systemd\x2dfsck.slice.
[    3.294045] systemd[1]: Created slice User and Session Slice.
[    3.294099] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[    3.294137] systemd[1]: Condition check resulted in Arbitrary Executable File Formats File System Automount Point being skipped.
[    3.294185] systemd[1]: Reached target Remote File Systems.
[    3.294197] systemd[1]: Reached target Slices.
[    3.294762] systemd[1]: Listening on Syslog Socket.
[    3.294839] systemd[1]: Listening on fsck to fsckd communication Socket.
[    3.294896] systemd[1]: Listening on initctl Compatibility Named Pipe.
[    3.295036] systemd[1]: Listening on Journal Audit Socket.
[    3.295105] systemd[1]: Listening on Journal Socket (/dev/log).
[    3.295187] systemd[1]: Listening on Journal Socket.
[    3.295303] systemd[1]: Listening on udev Control Socket.
[    3.295381] systemd[1]: Listening on udev Kernel Socket.
[    3.296107] systemd[1]: Mounting Huge Pages File System...
[    3.296776] systemd[1]: Mounting POSIX Message Queue File System...
[    3.297610] systemd[1]: Mounting Kernel Debug File System...
[    3.298408] systemd[1]: Mounting Kernel Trace File System...
[    3.299803] systemd[1]: Starting Journal Service...
[    3.300843] systemd[1]: Starting Set the console keyboard layout...
[    3.301792] systemd[1]: Starting Create list of static device nodes for the current kernel...
[    3.302541] systemd[1]: Starting Load Kernel Module drm...
[    3.303039] systemd[1]: Condition check resulted in Set Up Additional Binary Formats being skipped.
[    3.303081] systemd[1]: Condition check resulted in File System Check on Root Device being skipped.
[    3.304396] systemd[1]: Starting Load Kernel Modules...
[    3.305213] systemd[1]: Starting Remount Root and Kernel File Systems...
[    3.306249] systemd[1]: Starting Coldplug All udev Devices...
[    3.307511] systemd[1]: Starting Uncomplicated firewall...
[    3.309752] systemd[1]: Mounted Huge Pages File System.
[    3.309858] systemd[1]: Mounted POSIX Message Queue File System.
[    3.309937] systemd[1]: Mounted Kernel Debug File System.
[    3.310011] systemd[1]: Mounted Kernel Trace File System.
[    3.310439] systemd[1]: Finished Create list of static device nodes for the current kernel.
[    3.311140] systemd[1]: Finished Uncomplicated firewall.
[    3.312923] BTRFS info (device nvme0n1p2): disk space caching is enabled
[    3.314515] systemd[1]: Finished Remount Root and Kernel File Systems.
[    3.315380] systemd[1]: Activating swap /swapfile...
[    3.315899] systemd[1]: Condition check resulted in Rebuild Hardware Database being skipped.
[    3.315979] systemd[1]: Condition check resulted in Platform Persistent Storage Archival being skipped.
[    3.316912] systemd[1]: Starting Load/Save Random Seed...
[    3.317802] systemd[1]: Starting Create System Users...
[    3.318170] systemd[1]: modprobe@drm.service: Succeeded.
[    3.318628] systemd[1]: Finished Load Kernel Module drm.
[    3.320216] BTRFS warning (device nvme0n1p2): swapfile must not be copy-on-write
[    3.320878] lp: driver loaded but no devices found
[    3.320983] systemd[1]: swapfile.swap: Swap process exited, code=exited, status=255/EXCEPTION
[    3.320989] systemd[1]: swapfile.swap: Failed with result 'exit-code'.
[    3.321419] systemd[1]: Failed to activate swap /swapfile.
[    3.321517] systemd[1]: Dependency failed for Swap.
[    3.321593] systemd[1]: swap.target: Job swap.target/start failed with result 'dependency'.
[    3.324889] ppdev: user-space parallel port driver
[    3.328096] systemd[1]: Finished Load/Save Random Seed.
[    3.329004] systemd[1]: Finished Load Kernel Modules.
[    3.330026] systemd[1]: Mounting FUSE Control File System...
[    3.330880] systemd[1]: Mounting Kernel Configuration File System...
[    3.331640] systemd[1]: Starting Apply Kernel Variables...
[    3.333007] systemd[1]: Mounted FUSE Control File System.
[    3.333787] systemd[1]: Mounted Kernel Configuration File System.
[    3.335010] systemd[1]: Finished Create System Users.
[    3.335803] systemd[1]: Starting Create Static Device Nodes in /dev...
[    3.344593] systemd[1]: Finished Apply Kernel Variables.
[    3.345007] systemd[1]: Finished Create Static Device Nodes in /dev.
[    3.346253] systemd[1]: Starting Rule-based Manager for Device Events and Files...
[    3.394888] systemd[1]: Finished Coldplug All udev Devices.
[    3.396209] systemd[1]: Finished Set the console keyboard layout.
[    3.396359] systemd[1]: Reached target Local File Systems (Pre).
[    3.397649] systemd[1]: Mounting Mount unit for core, revision 10126...
[    3.398643] systemd[1]: Mounting Mount unit for core, revision 10185...
[    3.400008] systemd[1]: Mounting Mount unit for core18, revision 1885...
[    3.401021] systemd[1]: Mounting Mount unit for core18, revision 1932...
[    3.404532] systemd[1]: Started Journal Service.
[    3.590460] acpi PNP0C14:02: duplicate WMI GUID 05901221-D566-11D1-B2F0-00A0C9062910 (first instance was on PNP0C14:01)
[    3.590599] acpi PNP0C14:03: duplicate WMI GUID 05901221-D566-11D1-B2F0-00A0C9062910 (first instance was on PNP0C14:01)
[    3.597083] proc_thermal 0000:00:04.0: enabling device (0000 -> 0002)
[    3.603800] nfc: nfc_init: NFC Core ver 0.1
[    3.603819] NET: Registered protocol family 39
[    3.631176] intel_rapl_common: Found RAPL domain package
[    3.631178] intel_rapl_common: Found RAPL domain dram
[    3.646155] proc_thermal 0000:00:04.0: Creating sysfs group for PROC_THERMAL_PCI
[    3.652330] mei_me 0000:00:16.0: enabling device (0004 -> 0006)
[    3.654520] mc: Linux media interface: v0.10
[    3.656158] Non-volatile memory driver v1.3
[    3.663984] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[    3.664575] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[    3.666969] Bluetooth: Core ver 2.22
[    3.667022] NET: Registered protocol family 31
[    3.667022] Bluetooth: HCI device and connection manager initialized
[    3.667032] Bluetooth: HCI socket layer initialized
[    3.667037] Bluetooth: L2CAP socket layer initialized
[    3.667041] Bluetooth: SCO socket layer initialized
[    3.672387] thinkpad_acpi: ThinkPad ACPI Extras v0.26
[    3.672388] thinkpad_acpi: http://ibm-acpi.sf.net/
[    3.672389] thinkpad_acpi: ThinkPad BIOS N27ET38W (1.24 ), EC N27HT16W
[    3.672390] thinkpad_acpi: Lenovo ThinkPad T580, model 20LAZ3TXCN
[    3.680601] thinkpad_acpi: radio switch found; radios are enabled
[    3.681057] thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver
[    3.681058] thinkpad_acpi: Disabling thinkpad-acpi brightness events by default...
[    3.681505] BTRFS warning (device nvme0n1p2): swapfile must not be copy-on-write
[    3.683114] videodev: Linux video capture interface: v2.00
[    3.684907] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked
[    3.697564] BTRFS warning (device nvme0n1p2): swapfile must not be copy-on-write
[    3.700879] i915 0000:00:02.0: enabling device (0006 -> 0007)
[    3.701544] checking generic (c0000000 7e9000) vs hw (e7000000 1000000)
[    3.701545] checking generic (c0000000 7e9000) vs hw (c0000000 10000000)
[    3.701546] fb0: switching to inteldrmfb from EFI VGA
[    3.703398] thinkpad_acpi: battery 2 registered (start 0, stop 100)
[    3.704785] Console: switching to colour dummy device 80x25
[    3.704828] i915 0000:00:02.0: vgaarb: deactivate vga console
[    3.707504] thinkpad_acpi: battery 1 registered (start 0, stop 100)
[    3.707509] battery: new extension: ThinkPad Battery Extension
[    3.708235] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input6
[    3.710915] i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=mem
[    3.712147] i915 0000:00:02.0: [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_04.bin (v1.4)
[    3.713364] Intel(R) Wireless WiFi driver for Linux
[    3.716862] rmi4_smbus 0-002c: registering SMbus-connected sensor
[    3.725357] usbcore: registered new interface driver btusb
[    3.727745] Bluetooth: hci0: Firmware revision 0.1 build 50 week 12 2019
[    3.728143] RAPL PMU: API unit is 2^-32 Joules, 5 fixed counters, 655360 ms ovfl timer
[    3.728144] RAPL PMU: hw unit of domain pp0-core 2^-14 Joules
[    3.728145] RAPL PMU: hw unit of domain package 2^-14 Joules
[    3.728146] RAPL PMU: hw unit of domain dram 2^-14 Joules
[    3.728146] RAPL PMU: hw unit of domain pp1-gpu 2^-14 Joules
[    3.728147] RAPL PMU: hw unit of domain psys 2^-14 Joules
[    3.730576] cryptd: max_cpu_qlen set to 1000
[    3.734877] iwlwifi 0000:04:00.0: loaded firmware version 36.ad812ee0.0 8265-36.ucode op_mode iwlmvm
[    3.736637] uvcvideo: Found UVC 1.00 device Integrated Camera (13d3:56a6)
[    3.742431] AVX2 version of gcm_enc/dec engaged.
[    3.742433] AES CTR mode by8 optimization enabled
[    3.746467] uvcvideo 1-8:1.0: Entity type for entity Realtek Extended Controls Unit was not initialized!
[    3.746469] uvcvideo 1-8:1.0: Entity type for entity Extension 4 was not initialized!
[    3.746470] uvcvideo 1-8:1.0: Entity type for entity Processing 2 was not initialized!
[    3.746471] uvcvideo 1-8:1.0: Entity type for entity Camera 1 was not initialized!
[    3.746554] input: Integrated Camera: Integrated C as /devices/pci0000:00/0000:00:14.0/usb1/1-8/1-8:1.0/input/input7
[    3.746608] usbcore: registered new interface driver uvcvideo
[    3.746609] USB Video Class driver (1.1.1)
[    3.771273] iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless AC 8265, REV=0x230
[    3.832881] iwlwifi 0000:04:00.0: base HW address: e4:70:b8:68:56:9b
[    3.834123] rmi4_f01 rmi4-00.fn01: found RMI device, manufacturer: Synaptics, product: TM3276-030, fw id: 2620110
[    3.866971] intel_rapl_common: Found RAPL domain package
[    3.866972] intel_rapl_common: Found RAPL domain core
[    3.866973] intel_rapl_common: Found RAPL domain uncore
[    3.866974] intel_rapl_common: Found RAPL domain dram
[    3.890388] audit: type=1400 audit(1604039459.556:2): apparmor="STATUS" operation="profile_load" profile="unconfined" name="ippusbxd" pid=534 comm="apparmor_parser"
[    3.898611] audit: type=1400 audit(1604039459.564:3): apparmor="STATUS" operation="profile_load" profile="unconfined" name="lsb_release" pid=542 comm="apparmor_parser"
[    3.902689] audit: type=1400 audit(1604039459.568:4): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/bin/man" pid=537 comm="apparmor_parser"
[    3.902692] audit: type=1400 audit(1604039459.568:5): apparmor="STATUS" operation="profile_load" profile="unconfined" name="man_filter" pid=537 comm="apparmor_parser"
[    3.902694] audit: type=1400 audit(1604039459.568:6): apparmor="STATUS" operation="profile_load" profile="unconfined" name="man_groff" pid=537 comm="apparmor_parser"
[    3.904795] audit: type=1400 audit(1604039459.572:7): apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe" pid=546 comm="apparmor_parser"
[    3.904798] audit: type=1400 audit(1604039459.572:8): apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe//kmod" pid=546 comm="apparmor_parser"
[    3.908268] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
[    3.908656] thermal thermal_zone12: failed to read out thermal zone (-61)
[    3.928706] audit: type=1400 audit(1604039459.596:9): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/sbin/cups-browsed" pid=532 comm="apparmor_parser"
[    3.929151] audit: type=1400 audit(1604039459.596:10): apparmor="STATUS" operation="profile_load" profile="unconfined" name="tcpdump" pid=536 comm="apparmor_parser"
[    3.937777] BTRFS warning (device nvme0n1p2): swapfile must not be copy-on-write
[    3.940686] mei_hdcp 0000:00:16.0-b638ab7e-94e2-4ea2-a552-d1c54b627f04: bound 0000:00:02.0 (ops i915_hdcp_component_ops [i915])
[    3.946615] iwlwifi 0000:04:00.0 wlp4s0: renamed from wlan0
[    3.951179] input: Synaptics TM3276-030 as /devices/rmi4-00/input/input8
[    3.964200] serio: RMI4 PS/2 pass-through port at rmi4-00.fn03
[    4.224562] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    4.224563] Bluetooth: BNEP filters: protocol multicast
[    4.224566] Bluetooth: BNEP socket layer initialized
[    4.229347] NET: Registered protocol family 38
[    4.314119] psmouse serio2: trackpoint: IBM TrackPoint firmware: 0x0e, buttons: 3/3
[    4.358742] input: TPPS/2 IBM TrackPoint as /devices/rmi4-00/rmi4-00.fn03/serio2/input/input9
[    5.022712] [drm] Initialized i915 1.6.0 20200715 for 0000:00:02.0 on minor 0
[    5.025367] ACPI: Video Device [GFX0] (multi-head: yes  rom: no  post: no)
[    5.025542] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input10
[    5.025728] ACPI: Video Device [PXSX] (multi-head: no  rom: yes  post: no)
[    5.025758] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:35/LNXVIDEO:01/input/input11
[    5.026066] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
[    5.140894] fbcon: i915drmfb (fb0) is primary device
[    5.152982] Console: switching to colour frame buffer device 240x67
[    5.173585] i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device
[    5.215004] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC257: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker
[    5.215006] snd_hda_codec_realtek hdaudioC0D0:    speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[    5.215006] snd_hda_codec_realtek hdaudioC0D0:    hp_outs=1 (0x21/0x0/0x0/0x0/0x0)
[    5.215007] snd_hda_codec_realtek hdaudioC0D0:    mono: mono_out=0x0
[    5.215007] snd_hda_codec_realtek hdaudioC0D0:    inputs:
[    5.215008] snd_hda_codec_realtek hdaudioC0D0:      Mic=0x19
[    5.215009] snd_hda_codec_realtek hdaudioC0D0:      Internal Mic=0x12
[    5.268751] input: HDA Intel PCH Mic as /devices/pci0000:00/0000:00:1f.3/sound/card0/input12
[    5.268806] input: HDA Intel PCH Headphone as /devices/pci0000:00/0000:00:1f.3/sound/card0/input13
[    5.268845] input: HDA Intel PCH HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input14
[    5.268879] input: HDA Intel PCH HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input15
[    5.268913] input: HDA Intel PCH HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input16
[    5.268950] input: HDA Intel PCH HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input17
[    5.268986] input: HDA Intel PCH HDMI/DP,pcm=10 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input18
[    5.344702] kauditd_printk_skb: 35 callbacks suppressed
[    5.344703] audit: type=1400 audit(1604039461.012:46): apparmor="ALLOWED" operation="open" profile="/usr/sbin/sssd" name="/etc/sssd/conf.d/" pid=790 comm="sssd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
[    5.344726] audit: type=1400 audit(1604039461.012:47): apparmor="ALLOWED" operation="open" profile="/usr/sbin/sssd" name="/usr/share/sssd/cfg_rules.ini" pid=790 comm="sssd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
[    5.760308] audit: type=1400 audit(1604039461.428:48): apparmor="DENIED" operation="capable" profile="/usr/sbin/cups-browsed" pid=812 comm="cups-browsed" capability=23  capname="sys_nice"
[    8.684534] rfkill: input handler disabled
[    8.958232] wlp4s0: authenticate with d8:8f:76:7c:52:a9
[    8.969947] wlp4s0: send auth to d8:8f:76:7c:52:a9 (try 1/3)
[    8.975550] wlp4s0: authenticated
[    8.976079] wlp4s0: associate with d8:8f:76:7c:52:a9 (try 1/3)
[    8.977272] wlp4s0: RX AssocResp from d8:8f:76:7c:52:a9 (capab=0x1011 status=0 aid=5)
[    8.978489] wlp4s0: associated
[    9.002997] IPv6: ADDRCONF(NETDEV_CHANGE): wlp4s0: link becomes ready
[    9.020020] wlp4s0: Limiting TX power to 27 (27 - 0) dBm as advertised by d8:8f:76:7c:52:a9
[   77.397273] Bluetooth: RFCOMM TTY layer initialized
[   77.397283] Bluetooth: RFCOMM socket layer initialized
[   77.397293] Bluetooth: RFCOMM ver 1.11
[   77.572171] rfkill: input handler enabled
[   79.550460] rfkill: input handler disabled

[-- Attachment #3: Type: text/plain, Size: 29 bytes --]


> 
> Thank you!
> 
> Tyler

Re: [PATCH] tpm: efi: Don't create binary_bios_measurements file for an empty log

[Kenneth R. Crudup]

On Wed, 28 Oct 2020, Tyler Hicks wrote:

> Hi Kai, Kenneth, and Mimi - could one or two of you please follow these
> steps:
...

OK, I built a kernel with the two patches applied, and with and without commit
7f3d176f5f7e, and when I run "sudo fwupdtpmevlog" (which normally causes a
panic() when 7f3d176f5f7e is in place) and the results are:

- With 7f3d176f5f7e reverted, no WARNs of any kind
- With 7f3d176f5f7e in place, same, I just get "UEFI TPM log area empty"

	-Kenny

-- 
Kenneth R. Crudup  Sr. SW Engineer, Scott County Consulting, Orange County CA

Re: [PATCH] tpm: efi: Don't create binary_bios_measurements file for an empty log

[Jarkko Sakkinen]

On Wed, Oct 28, 2020 at 10:41:02AM -0500, Tyler Hicks wrote:
> Mimic the pre-existing ACPI and Device Tree event log behavior by not
> creating the binary_bios_measurements file when the EFI TPM event log is
> empty.
> 
> This fixes the following NULL pointer dereference that can occur when
> reading /sys/kernel/security/tpm0/binary_bios_measurements after the
> kernel received an empty event log from the firmware:
> 
>  BUG: kernel NULL pointer dereference, address: 000000000000002c
>  #PF: supervisor read access in kernel mode
>  #PF: error_code(0x0000) - not-present page
>  PGD 0 P4D 0
>  Oops: 0000 [#1] SMP PTI
>  CPU: 2 PID: 3932 Comm: fwupdtpmevlog Not tainted 5.9.0-00003-g629990edad62 #17
>  Hardware name: LENOVO 20LCS03L00/20LCS03L00, BIOS N27ET38W (1.24 ) 11/28/2019
>  RIP: 0010:tpm2_bios_measurements_start+0x3a/0x550
>  Code: 54 53 48 83 ec 68 48 8b 57 70 48 8b 1e 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 48 8b 82 c0 06 00 00 48 8b 8a c8 06 00 00 <44> 8b 60 1c 48 89 4d a0 4c 89 e2 49 83 c4 20 48 83 fb 00 75 2a 49
>  RSP: 0018:ffffa9c901203db0 EFLAGS: 00010246
>  RAX: 0000000000000010 RBX: 0000000000000000 RCX: 0000000000000010
>  RDX: ffff8ba1eb99c000 RSI: ffff8ba1e4ce8280 RDI: ffff8ba1e4ce8258
>  RBP: ffffa9c901203e40 R08: ffffa9c901203dd8 R09: ffff8ba1ec443300
>  R10: ffffa9c901203e50 R11: 0000000000000000 R12: ffff8ba1e4ce8280
>  R13: ffffa9c901203ef0 R14: ffffa9c901203ef0 R15: ffff8ba1e4ce8258
>  FS:  00007f6595460880(0000) GS:ffff8ba1ef880000(0000) knlGS:0000000000000000
>  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>  CR2: 000000000000002c CR3: 00000007d8d18003 CR4: 00000000003706e0
>  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
>  DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
>  Call Trace:
>   ? __kmalloc_node+0x113/0x320
>   ? kvmalloc_node+0x31/0x80
>   seq_read+0x94/0x420
>   vfs_read+0xa7/0x190
>   ksys_read+0xa7/0xe0
>   __x64_sys_read+0x1a/0x20
>   do_syscall_64+0x37/0x80
>   entry_SYSCALL_64_after_hwframe+0x44/0xa9
> 
> In this situation, the bios_event_log pointer in the tpm_bios_log struct
> was not NULL but was equal to the ZERO_SIZE_PTR (0x10) value. This was
> due to the following kmemdup() in tpm_read_log_efi():
> 
> int tpm_read_log_efi(struct tpm_chip *chip)
> {
> ...
> 	/* malloc EventLog space */
> 	log->bios_event_log = kmemdup(log_tbl->log, log_size, GFP_KERNEL);
> 	if (!log->bios_event_log) {
> 		ret = -ENOMEM;
> 		goto out;
> 	}
> ...
> }
> 
> When log_size is zero, due to an empty event log from firmware,
> ZERO_SIZE_PTR is returned from kmemdup(). Upon a read of the
> binary_bios_measurements file, the tpm2_bios_measurements_start()
> function does not perform a ZERO_OR_NULL_PTR() check on the
> bios_event_log pointer before dereferencing it.
> 
> Rather than add a ZERO_OR_NULL_PTR() check in functions that make use of
> the bios_event_log pointer, simply avoid creating the
> binary_bios_measurements_file as is done in other event log retrieval
> backends.
> 
> Explicitly ignore all of the events in the final event log when the main
> event log is empty. The list of events in the final event log cannot be
> accurately parsed without referring to the first event in the main event
> log (the event log header) so the final event log is useless in such a
> situation.
> 
> Fixes: 58cc1e4faf10 ("tpm: parse TPM event logs based on EFI table")
> Link: https://lore.kernel.org/linux-integrity/E1FDCCCB-CA51-4AEE-AC83-9CDE995EAE52@canonical.com/
> Reported-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
> Reported-by: Kenneth R. Crudup <kenny@panix.com>
> Reported-by: Mimi Zohar <zohar@linux.ibm.com>
> Cc: Thiébaud Weksteen <tweek@google.com>
> Cc: Ard Biesheuvel <ardb@kernel.org>
> Signed-off-by: Tyler Hicks <tyhicks@linux.microsoft.com>
> ---

Applied, thanks.

>  drivers/char/tpm/eventlog/efi.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/char/tpm/eventlog/efi.c b/drivers/char/tpm/eventlog/efi.c
> index 6bb023de17f1..35229e5143ca 100644
> --- a/drivers/char/tpm/eventlog/efi.c
> +++ b/drivers/char/tpm/eventlog/efi.c
> @@ -41,6 +41,11 @@ int tpm_read_log_efi(struct tpm_chip *chip)
>  	log_size = log_tbl->size;
>  	memunmap(log_tbl);
>  
> +	if (!log_size) {
> +		pr_warn("UEFI TPM log area empty\n");
> +		return -EIO;
> +	}
> +
>  	log_tbl = memremap(efi.tpm_log, sizeof(*log_tbl) + log_size,
>  			   MEMREMAP_WB);
>  	if (!log_tbl) {
> 
> base-commit: ed8780e3f2ecc82645342d070c6b4e530532e680
> -- 
> 2.25.1
> 
> 

/Jarkko