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Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.9.21/0040-kaiser-Set-_PAGE_NX-only-if-supported.patch')
-rw-r--r--common/recipes-kernel/linux/linux-yocto-4.9.21/0040-kaiser-Set-_PAGE_NX-only-if-supported.patch121
1 files changed, 0 insertions, 121 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.9.21/0040-kaiser-Set-_PAGE_NX-only-if-supported.patch b/common/recipes-kernel/linux/linux-yocto-4.9.21/0040-kaiser-Set-_PAGE_NX-only-if-supported.patch
deleted file mode 100644
index c6511915..00000000
--- a/common/recipes-kernel/linux/linux-yocto-4.9.21/0040-kaiser-Set-_PAGE_NX-only-if-supported.patch
+++ /dev/null
@@ -1,121 +0,0 @@
-From 71ce3e3c495897125681f2adfe13033aff1a3a58 Mon Sep 17 00:00:00 2001
-From: Guenter Roeck <groeck@chromium.org>
-Date: Thu, 4 Jan 2018 13:41:55 -0800
-Subject: [PATCH 040/103] kaiser: Set _PAGE_NX only if supported
-
-This resolves a crash if loaded under qemu + haxm under windows.
-See https://www.spinics.net/lists/kernel/msg2689835.html for details.
-Here is a boot log (the log is from chromeos-4.4, but Tao Wu says that
-the same log is also seen with vanilla v4.4.110-rc1).
-
-[ 0.712750] Freeing unused kernel memory: 552K
-[ 0.721821] init: Corrupted page table at address 57b029b332e0
-[ 0.722761] PGD 80000000bb238067 PUD bc36a067 PMD bc369067 PTE 45d2067
-[ 0.722761] Bad pagetable: 000b [#1] PREEMPT SMP
-[ 0.722761] Modules linked in:
-[ 0.722761] CPU: 1 PID: 1 Comm: init Not tainted 4.4.96 #31
-[ 0.722761] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
-rel-1.7.5.1-0-g8936dbb-20141113_115728-nilsson.home.kraxel.org 04/01/2014
-[ 0.722761] task: ffff8800bc290000 ti: ffff8800bc28c000 task.ti: ffff8800bc28c000
-[ 0.722761] RIP: 0010:[<ffffffff83f4129e>] [<ffffffff83f4129e>] __clear_user+0x42/0x67
-[ 0.722761] RSP: 0000:ffff8800bc28fcf8 EFLAGS: 00010202
-[ 0.722761] RAX: 0000000000000000 RBX: 00000000000001a4 RCX: 00000000000001a4
-[ 0.722761] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 000057b029b332e0
-[ 0.722761] RBP: ffff8800bc28fd08 R08: ffff8800bc290000 R09: ffff8800bb2f4000
-[ 0.722761] R10: ffff8800bc290000 R11: ffff8800bb2f4000 R12: 000057b029b332e0
-[ 0.722761] R13: 0000000000000000 R14: 000057b029b33340 R15: ffff8800bb1e2a00
-[ 0.722761] FS: 0000000000000000(0000) GS:ffff8800bfb00000(0000) knlGS:0000000000000000
-[ 0.722761] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
-[ 0.722761] CR2: 000057b029b332e0 CR3: 00000000bb2f8000 CR4: 00000000000006e0
-[ 0.722761] Stack:
-[ 0.722761] 000057b029b332e0 ffff8800bb95fa80 ffff8800bc28fd18 ffffffff83f4120c
-[ 0.722761] ffff8800bc28fe18 ffffffff83e9e7a1 ffff8800bc28fd68 0000000000000000
-[ 0.722761] ffff8800bc290000 ffff8800bc290000 ffff8800bc290000 ffff8800bc290000
-[ 0.722761] Call Trace:
-[ 0.722761] [<ffffffff83f4120c>] clear_user+0x2e/0x30
-[ 0.722761] [<ffffffff83e9e7a1>] load_elf_binary+0xa7f/0x18f7
-[ 0.722761] [<ffffffff83de2088>] search_binary_handler+0x86/0x19c
-[ 0.722761] [<ffffffff83de389e>] do_execveat_common.isra.26+0x909/0xf98
-[ 0.722761] [<ffffffff844febe0>] ? rest_init+0x87/0x87
-[ 0.722761] [<ffffffff83de40be>] do_execve+0x23/0x25
-[ 0.722761] [<ffffffff83c002e3>] run_init_process+0x2b/0x2d
-[ 0.722761] [<ffffffff844fec4d>] kernel_init+0x6d/0xda
-[ 0.722761] [<ffffffff84505b2f>] ret_from_fork+0x3f/0x70
-[ 0.722761] [<ffffffff844febe0>] ? rest_init+0x87/0x87
-[ 0.722761] Code: 86 84 be 12 00 00 00 e8 87 0d e8 ff 66 66 90 48 89 d8 48 c1
-eb 03 4c 89 e7 83 e0 07 48 89 d9 be 08 00 00 00 31 d2 48 85 c9 74 0a <48> 89 17
-48 01 f7 ff c9 75 f6 48 89 c1 85 c9 74 09 88 17 48 ff
-[ 0.722761] RIP [<ffffffff83f4129e>] __clear_user+0x42/0x67
-[ 0.722761] RSP <ffff8800bc28fcf8>
-[ 0.722761] ---[ end trace def703879b4ff090 ]---
-[ 0.722761] BUG: sleeping function called from invalid context at /mnt/host/source/src/third_party/kernel/v4.4/kernel/locking/rwsem.c:21
-[ 0.722761] in_atomic(): 0, irqs_disabled(): 1, pid: 1, name: init
-[ 0.722761] CPU: 1 PID: 1 Comm: init Tainted: G D 4.4.96 #31
-[ 0.722761] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.7.5.1-0-g8936dbb-20141113_115728-nilsson.home.kraxel.org 04/01/2014
-[ 0.722761] 0000000000000086 dcb5d76098c89836 ffff8800bc28fa30 ffffffff83f34004
-[ 0.722761] ffffffff84839dc2 0000000000000015 ffff8800bc28fa40 ffffffff83d57dc9
-[ 0.722761] ffff8800bc28fa68 ffffffff83d57e6a ffffffff84a53640 0000000000000000
-[ 0.722761] Call Trace:
-[ 0.722761] [<ffffffff83f34004>] dump_stack+0x4d/0x63
-[ 0.722761] [<ffffffff83d57dc9>] ___might_sleep+0x13a/0x13c
-[ 0.722761] [<ffffffff83d57e6a>] __might_sleep+0x9f/0xa6
-[ 0.722761] [<ffffffff84502788>] down_read+0x20/0x31
-[ 0.722761] [<ffffffff83cc5d9b>] __blocking_notifier_call_chain+0x35/0x63
-[ 0.722761] [<ffffffff83cc5ddd>] blocking_notifier_call_chain+0x14/0x16
-[ 0.800374] usb 1-1: new full-speed USB device number 2 using uhci_hcd
-[ 0.722761] [<ffffffff83cefe97>] profile_task_exit+0x1a/0x1c
-[ 0.802309] [<ffffffff83cac84e>] do_exit+0x39/0xe7f
-[ 0.802309] [<ffffffff83ce5938>] ? vprintk_default+0x1d/0x1f
-[ 0.802309] [<ffffffff83d7bb95>] ? printk+0x57/0x73
-[ 0.802309] [<ffffffff83c46e25>] oops_end+0x80/0x85
-[ 0.802309] [<ffffffff83c7b747>] pgtable_bad+0x8a/0x95
-[ 0.802309] [<ffffffff83ca7f4a>] __do_page_fault+0x8c/0x352
-[ 0.802309] [<ffffffff83eefba5>] ? file_has_perm+0xc4/0xe5
-[ 0.802309] [<ffffffff83ca821c>] do_page_fault+0xc/0xe
-[ 0.802309] [<ffffffff84507682>] page_fault+0x22/0x30
-[ 0.802309] [<ffffffff83f4129e>] ? __clear_user+0x42/0x67
-[ 0.802309] [<ffffffff83f4127f>] ? __clear_user+0x23/0x67
-[ 0.802309] [<ffffffff83f4120c>] clear_user+0x2e/0x30
-[ 0.802309] [<ffffffff83e9e7a1>] load_elf_binary+0xa7f/0x18f7
-[ 0.802309] [<ffffffff83de2088>] search_binary_handler+0x86/0x19c
-[ 0.802309] [<ffffffff83de389e>] do_execveat_common.isra.26+0x909/0xf98
-[ 0.802309] [<ffffffff844febe0>] ? rest_init+0x87/0x87
-[ 0.802309] [<ffffffff83de40be>] do_execve+0x23/0x25
-[ 0.802309] [<ffffffff83c002e3>] run_init_process+0x2b/0x2d
-[ 0.802309] [<ffffffff844fec4d>] kernel_init+0x6d/0xda
-[ 0.802309] [<ffffffff84505b2f>] ret_from_fork+0x3f/0x70
-[ 0.802309] [<ffffffff844febe0>] ? rest_init+0x87/0x87
-[ 0.830559] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009
-[ 0.830559]
-[ 0.831305] Kernel Offset: 0x2c00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
-[ 0.831305] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009
-
-The crash part of this problem may be solved with the following patch
-(thanks to Hugh for the hint). There is still another problem, though -
-with this patch applied, the qemu session aborts with "VCPU Shutdown
-request", whatever that means.
-
-Cc: lepton <ytht.net@gmail.com>
-Signed-off-by: Guenter Roeck <groeck@chromium.org>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- arch/x86/mm/kaiser.c | 3 ++-
- 1 file changed, 2 insertions(+), 1 deletion(-)
-
-diff --git a/arch/x86/mm/kaiser.c b/arch/x86/mm/kaiser.c
-index b6b0f3a..d8376b4 100644
---- a/arch/x86/mm/kaiser.c
-+++ b/arch/x86/mm/kaiser.c
-@@ -413,7 +413,8 @@ pgd_t kaiser_set_shadow_pgd(pgd_t *pgdp, pgd_t pgd)
- * get out to userspace running on the kernel CR3,
- * userspace will crash instead of running.
- */
-- pgd.pgd |= _PAGE_NX;
-+ if (__supported_pte_mask & _PAGE_NX)
-+ pgd.pgd |= _PAGE_NX;
- }
- } else if (!pgd.pgd) {
- /*
---
-2.7.4
-
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-04-23 23:19:19 +0000