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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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53d3c80635
commit 25928deeb1e4e2cdae1dccff349320c6841eb5f8 upstream.
ACPICA commit 29da9a2a3f5b2c60420893e5c6309a0586d7a329
ACPI is allocating an object using kmalloc(), but then frees it
using kmem_cache_free(<"Acpi-Namespace" kmem_cache>).
This is wrong and can lead to boot failures manifesting like this:
hpet0: 3 comparators, 64-bit 100.000000 MHz counter
clocksource: Switched to clocksource tsc-early
BUG: unable to handle page fault for address: 000000003ffe0018
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: 0000 [#1] SMP PTI
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.6.0+ #211
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
Ubuntu-1.8.2-1ubuntu1 04/01/2014
RIP: 0010:kmem_cache_alloc+0x70/0x1d0
Code: 00 00 4c 8b 45 00 65 49 8b 50 08 65 4c 03 05 6f cc e7 7e 4d 8b
20 4d 85 e4 0f 84 3d 01 00 00 8b 45 20 48 8b 7d 00 48 8d 4a 01 <49> 8b
1c 04 4c 89 e0 65 48 0f c7 0f 0f 94 c0 84 c0 74 c5 8b 45 20
RSP: 0000:ffffc90000013df8 EFLAGS: 00010206
RAX: 0000000000000018 RBX: ffffffff81c49200 RCX: 0000000000000002
RDX: 0000000000000001 RSI: 0000000000000dc0 RDI: 000000000002b300
RBP: ffff88803e403d00 R08: ffff88803ec2b300 R09: 0000000000000001
R10: 0000000000000dc0 R11: 0000000000000006 R12: 000000003ffe0000
R13: ffffffff8110a583 R14: 0000000000000dc0 R15: ffffffff81c49a80
FS: 0000000000000000(0000) GS:ffff88803ec00000(0000)
knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000003ffe0018 CR3: 0000000001c0a001 CR4: 00000000003606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__trace_define_field+0x33/0xa0
event_trace_init+0xeb/0x2b4
tracer_init_tracefs+0x60/0x195
? register_tracer+0x1e7/0x1e7
do_one_initcall+0x74/0x160
kernel_init_freeable+0x190/0x1f0
? rest_init+0x9a/0x9a
kernel_init+0x5/0xf6
ret_from_fork+0x35/0x40
CR2: 000000003ffe0018
---[ end trace 707efa023f2ee960 ]---
RIP: 0010:kmem_cache_alloc+0x70/0x1d0
Bisection leads to unrelated changes in slab; Vlastimil Babka
suggests an unrelated layout or slab merge change merely exposed
the underlying bug.
Link: https://lore.kernel.org/lkml/4dc93ff8-f86e-f4c9-ebeb-6d3153a78d03@oracle.com/
Link: https://lore.kernel.org/r/a1461e21-c744-767d-6dfc-6641fd3e3ce2@siemens.com
Link: https://github.com/acpica/acpica/commit/29da9a2a
Fixes:
|
||
|---|---|---|
| .. | ||
| acpica | ||
| apei | ||
| arm64 | ||
| dptf | ||
| nfit | ||
| numa | ||
| pmic | ||
| x86 | ||
| ac.c | ||
| acpi_adxl.c | ||
| acpi_amba.c | ||
| acpi_apd.c | ||
| acpi_cmos_rtc.c | ||
| acpi_configfs.c | ||
| acpi_dbg.c | ||
| acpi_extlog.c | ||
| acpi_ipmi.c | ||
| acpi_lpat.c | ||
| acpi_lpit.c | ||
| acpi_lpss.c | ||
| acpi_memhotplug.c | ||
| acpi_pad.c | ||
| acpi_platform.c | ||
| acpi_pnp.c | ||
| acpi_processor.c | ||
| acpi_tad.c | ||
| acpi_video.c | ||
| acpi_watchdog.c | ||
| battery.c | ||
| bgrt.c | ||
| blacklist.c | ||
| bus.c | ||
| button.c | ||
| container.c | ||
| cppc_acpi.c | ||
| custom_method.c | ||
| debugfs.c | ||
| device_pm.c | ||
| device_sysfs.c | ||
| dock.c | ||
| ec_sys.c | ||
| ec.c | ||
| event.c | ||
| evged.c | ||
| fan.c | ||
| glue.c | ||
| hed.c | ||
| internal.h | ||
| ioapic.c | ||
| irq.c | ||
| Kconfig | ||
| Makefile | ||
| nvs.c | ||
| osi.c | ||
| osl.c | ||
| pci_irq.c | ||
| pci_link.c | ||
| pci_mcfg.c | ||
| pci_root.c | ||
| pci_slot.c | ||
| power.c | ||
| pptt.c | ||
| proc.c | ||
| processor_core.c | ||
| processor_driver.c | ||
| processor_idle.c | ||
| processor_pdc.c | ||
| processor_perflib.c | ||
| processor_thermal.c | ||
| processor_throttling.c | ||
| property.c | ||
| reboot.c | ||
| resource.c | ||
| sbs.c | ||
| sbshc.c | ||
| sbshc.h | ||
| scan.c | ||
| sleep.c | ||
| sleep.h | ||
| spcr.c | ||
| sysfs.c | ||
| tables.c | ||
| thermal.c | ||
| tiny-power-button.c | ||
| utils.c | ||
| video_detect.c | ||
| wakeup.c | ||