[Bug 219495] [TPM2] tpm_tis driver crashs during the boot time.

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=219495

--- Comment #51 from jarkko@kernel.org ---
(In reply to jarkko from comment #31)
> OK, I somehow managed to miss it as it had different naming convention sorry.
> 
> Anywhow, I see this:
> 
> [   10.693310][    T1] tpm_tis STM0925:00: 2.0 TPM (device-id 0x3, rev-id 0)
> [   10.848132][    T1] ------------[ cut here ]------------
> [   10.853559][    T1] WARNING: CPU: 59 PID: 1 at mm/page_alloc.c:4727
> __alloc_pages_noprof+0x2ca/0x330
> [   10.862827][    T1] Modules linked in:
> [   10.866671][    T1] CPU: 59 UID: 0 PID: 1 Comm: swapper/0 Not tainted
> 6.12.0-lp155.2.g52785e2-default #1 openSUSE Tumbleweed (unreleased)
> 588cd98293a7c9eba9013378d807364c088c9375
> [   10.882741][    T1] Hardware name: HPE ProLiant DL320 Gen12/ProLiant
> DL320 Gen12, BIOS 1.20 10/28/2024
> [   10.892170][    T1] RIP: 0010:__alloc_pages_noprof+0x2ca/0x330
> [   10.898103][    T1] Code: 24 08 e9 4a fe ff ff e8 34 36 fa ff e9 88 fe ff
> ff 83 fe 0a 0f 86 b3 fd ff ff 80 3d 01 e7 ce 01 00 75 09 c6 05 f8 e6 ce 01
> 01 <0f> 0b 45 31 ff e9 e5 fe ff ff f7 c2 00 00 08 00 75 42 89 d9 80 e1
> [   10.917750][    T1] RSP: 0000:ffffb7cf40077980 EFLAGS: 00010246
> [   10.923777][    T1] RAX: 0000000000000000 RBX: 0000000000040cc0 RCX:
> 0000000000000000
> [   10.931727][    T1] RDX: 0000000000000000 RSI: 000000000000000c RDI:
> 0000000000040cc0
> [   10.939678][    T1] RBP: 000000000000000c R08: ffffffffbb6fdc67 R09:
> 0000000000000000
> [   10.947626][    T1] R10: ffffb7cf40077ac8 R11: 0000000000000000 R12:
> 0000000000000000
> [   10.955560][    T1] R13: 00000000ffffffff R14: 0000000000000cc0 R15:
> ffff9a5c051cc000
> [   10.963507][    T1] FS:  0000000000000000(0000) GS:ffff9a6348780000(0000)
> knlGS:0000000000000000
> [   10.972405][    T1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [   10.978944][    T1] CR2: 0000000000000000 CR3: 0000000184638001 CR4:
> 0000000000f70ef0
> [   10.986891][    T1] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
> 0000000000000000
> [   10.994837][    T1] DR3: 0000000000000000 DR6: 00000000ffff07f0 DR7:
> 0000000000000400
> [   11.002770][    T1] PKRU: 55555554
> [   11.006256][    T1] Call Trace:
> [   11.009479][    T1]  <TASK>
> [   11.012352][    T1]  ? __alloc_pages_noprof+0x2ca/0x330
> 
> 
> RSI=0x0c, which maps to the parameter 'order' in __alloc_pages_noprof(),
> which allocates 
> 4096*2**0xc = 16777216 = 16 MiB of memory. This means that memory consumed
> by the log is in the range 8 MiB < N <= 16 MiB.

I don't understand why ESI=0x0c while TPM2 table has size 0x800000, which maps
to the order 0x0b as 4096 * 2**0x0b = 0x800000.

It looks like as if TPM2 table and this transcript are either from different
machines or different BIOS versions. I'm not sure how to otherwise explain that
difference.

For 0x0c, the last line in that TPM2 dump screenshot should start: 00000001 not
00008000.

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