From: Daniel Sneddon <daniel.sneddon@linux.intel.com>
To: Peter Zijlstra <peterz@infradead.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org,
Pawan Gupta <pawan.kumar.gupta@linux.intel.com>,
Borislav Petkov <bp@suse.de>,
Andrew Cooper <Andrew.Cooper3@citrix.com>,
Thomas Gleixner <tglx@linutronix.de>,
x86@kernel.org, Josh Poimboeuf <jpoimboe@redhat.com>
Subject: Re: [PATCH] x86/nospec: Unwreck the RSB stuffing
Date: Tue, 16 Aug 2022 10:34:38 -0700 [thread overview]
Message-ID: <839e2877-bb16-dbb5-d4da-bc611733c7e1@linux.intel.com> (raw)
In-Reply-To: <YvuNdDWoUZSBjYcm@worktop.programming.kicks-ass.net>
On 8/16/22 05:28, Peter Zijlstra wrote:
>
> Could you please test this; I've only compiled it.
>
When booting I get the following BUG:
------------[ cut here ]------------
kernel BUG at arch/x86/kernel/alternative.c:290!
invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.0.0-rc1-00001-gb72b03c96999 #3
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1
04/01/2014
RIP: 0010:apply_alternatives+0x287/0x2d0
Code: 4c 29 f6 03 74 24 13 89 74 24 13 45 85 c0 0f 85 d2 41 e9 00 41 0f b6 02 83
e0 fd 3c e9 0f 84 46 ff ff ff e9 5e fe ff ff 0f 0b <0f> 0b f7 c6 00 ff ff ff 0f
84 68 ff ff ff 8d 71 fb c6 44 24 12 e9
RSP: 0000:ffffffff82c03d68 EFLAGS: 00010206
RAX: 0000000000000000 RBX: ffffffff83728c24 RCX: 0000000000007fff
RDX: 00000000ffffffea RSI: 0000000000000000 RDI: 000000000000ffff
RBP: ffffffff82c03d7a R08: e800000010c4c749 R09: 0001e8cc00000001
R10: 10c48348cc000000 R11: e8ae0feb75ccff49 R12: ffffffff8372fcf8
R13: 0000000000000000 R14: ffffffff81001a68 R15: 000000000000001f
FS: 0000000000000000(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff88813ffff000 CR3: 0000000002c0c001 CR4: 0000000000770ef0
PKRU: 55555554
Call Trace:
<TASK>
? insn_get_opcode+0xef/0x1c0
? ct_nmi_enter+0xb3/0x180
? ct_nmi_exit+0xbe/0x1d0
? irqentry_exit+0x2d/0x40
? asm_common_interrupt+0x22/0x40
alternative_instructions+0x5b/0xf5
check_bugs+0xdaf/0xdef
start_kernel+0x66a/0x6a2
secondary_startup_64_no_verify+0xe0/0xeb
</TASK>
Modules linked in:
Dumping ftrace buffer:
(ftrace buffer empty)
---[ end trace 0000000000000000 ]---
RIP: 0010:apply_alternatives+0x287/0x2d0
Code: 4c 29 f6 03 74 24 13 89 74 24 13 45 85 c0 0f 85 d2 41 e9 00 41 0f b6 02 83
e0 fd 3c e9 0f 84 46 ff ff ff e9 5e fe ff ff 0f 0b <0f> 0b f7 c6 00 ff ff ff 0f
84 68 ff ff ff 8d 71 fb c6 44 24 12 e9
RSP: 0000:ffffffff82c03d68 EFLAGS: 00010206
RAX: 0000000000000000 RBX: ffffffff83728c24 RCX: 0000000000007fff
RDX: 00000000ffffffea RSI: 0000000000000000 RDI: 000000000000ffff
RBP: ffffffff82c03d7a R08: e800000010c4c749 R09: 0001e8cc00000001
R10: 10c48348cc000000 R11: e8ae0feb75ccff49 R12: ffffffff8372fcf8
R13: 0000000000000000 R14: ffffffff81001a68 R15: 000000000000001f
FS: 0000000000000000(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff88813ffff000 CR3: 0000000002c0c001 CR4: 0000000000770ef0
PKRU: 55555554
Kernel panic - not syncing: Attempted to kill the idle task!
Dumping ftrace buffer:
(ftrace buffer empty)
---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]---
next prev parent reply other threads:[~2022-08-16 17:34 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-09 18:00 [PATCH 5.19 00/21] 5.19.1-rc1 review Greg Kroah-Hartman
2022-08-09 18:00 ` [PATCH 5.19 01/21] block: fix default IO priority handling again Greg Kroah-Hartman
2022-08-09 18:00 ` [PATCH 5.19 02/21] tools/vm/slabinfo: Handle files in debugfs Greg Kroah-Hartman
2022-08-09 18:00 ` [PATCH 5.19 03/21] ACPI: video: Force backlight native for some TongFang devices Greg Kroah-Hartman
2022-08-09 18:00 ` [PATCH 5.19 04/21] ACPI: video: Shortening quirk list by identifying Clevo by board_name only Greg Kroah-Hartman
2022-08-09 18:00 ` [PATCH 5.19 05/21] ACPI: APEI: Better fix to avoid spamming the console with old error logs Greg Kroah-Hartman
2022-08-09 18:00 ` [PATCH 5.19 06/21] crypto: arm64/poly1305 - fix a read out-of-bound Greg Kroah-Hartman
2022-08-09 18:00 ` [PATCH 5.19 07/21] ata: sata_mv: Fixes expected number of resources now IRQs are gone Greg Kroah-Hartman
2022-08-09 18:01 ` [PATCH 5.19 08/21] arm64: set UXN on swapper page tables Greg Kroah-Hartman
2022-08-09 18:01 ` [PATCH 5.19 09/21] Bluetooth: hci_qca: Return wakeup for qca_wakeup Greg Kroah-Hartman
2022-08-09 18:01 ` [PATCH 5.19 10/21] Bluetooth: hci_bcm: Add BCM4349B1 variant Greg Kroah-Hartman
2022-08-09 18:01 ` [PATCH 5.19 11/21] Bluetooth: hci_bcm: Add DT compatible for CYW55572 Greg Kroah-Hartman
2022-08-09 18:01 ` [PATCH 5.19 12/21] dt-bindings: bluetooth: broadcom: Add BCM4349B1 DT binding Greg Kroah-Hartman
2022-08-09 18:01 ` [PATCH 5.19 13/21] Bluetooth: btusb: Add support of IMC Networks PID 0x3568 Greg Kroah-Hartman
2022-08-09 18:01 ` [PATCH 5.19 14/21] Bluetooth: btusb: Add Realtek RTL8852C support ID 0x04CA:0x4007 Greg Kroah-Hartman
2022-08-09 18:01 ` [PATCH 5.19 15/21] Bluetooth: btusb: Add Realtek RTL8852C support ID 0x04C5:0x1675 Greg Kroah-Hartman
2022-08-09 18:01 ` [PATCH 5.19 16/21] Bluetooth: btusb: Add Realtek RTL8852C support ID 0x0CB8:0xC558 Greg Kroah-Hartman
2022-08-09 18:01 ` [PATCH 5.19 17/21] Bluetooth: btusb: Add Realtek RTL8852C support ID 0x13D3:0x3587 Greg Kroah-Hartman
2022-08-09 18:01 ` [PATCH 5.19 18/21] Bluetooth: btusb: Add Realtek RTL8852C support ID 0x13D3:0x3586 Greg Kroah-Hartman
2022-08-09 18:01 ` [PATCH 5.19 19/21] macintosh/adb: fix oob read in do_adb_query() function Greg Kroah-Hartman
2022-08-09 18:01 ` [PATCH 5.19 20/21] x86/speculation: Add RSB VM Exit protections Greg Kroah-Hartman
2022-08-16 12:28 ` [PATCH] x86/nospec: Unwreck the RSB stuffing Peter Zijlstra
2022-08-16 12:33 ` Greg Kroah-Hartman
2022-08-16 12:36 ` Borislav Petkov
2022-08-16 12:42 ` Greg Kroah-Hartman
2022-08-16 16:34 ` Daniel Sneddon
2022-08-16 12:52 ` Andrew Cooper
2022-08-16 13:01 ` Borislav Petkov
2022-08-16 22:34 ` Pawan Gupta
2022-08-16 17:34 ` Daniel Sneddon [this message]
2022-08-16 18:04 ` Daniel Sneddon
2022-08-16 18:14 ` Boris Petkov
2022-08-17 6:55 ` Peter Zijlstra
2022-08-19 10:33 ` Peter Zijlstra
2022-08-19 11:35 ` [tip: x86/urgent] " tip-bot2 for Peter Zijlstra
2022-08-09 18:01 ` [PATCH 5.19 21/21] x86/speculation: Add LFENCE to RSB fill sequence Greg Kroah-Hartman
2022-08-09 22:13 ` [PATCH 5.19 00/21] 5.19.1-rc1 review Florian Fainelli
2022-08-10 1:08 ` Zan Aziz
2022-08-10 4:10 ` Shuah Khan
2022-08-10 5:26 ` Ron Economos
2022-08-10 7:51 ` Naresh Kamboju
2022-08-10 8:28 ` Bagas Sanjaya
2022-08-10 13:33 ` Guenter Roeck
2022-08-10 14:20 ` Justin Forbes
2022-08-10 21:49 ` Rudi Heitbaum
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