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Linux kernel source tree
b496490886
Use buffer allocated with kmalloc instead of with stack to fix kernel
crash due to Unable to handle kernel paging request at virtual address
ffffffc0095cbce8.
[ 156.977349] Unable to handle kernel paging request at virtual address ffffffc0095cbce8
[ 156.985270] Mem abort info:
[ 156.988059] ESR = 0x96000045
[ 156.991104] Exception class = DABT (current EL), IL = 32 bits
[ 156.997013] SET = 0, FnV = 0
[ 157.000057] EA = 0, S1PTW = 0
[ 157.003190] Data abort info:
[ 157.006061] ISV = 0, ISS = 0x00000045
[ 157.009887] CM = 0, WnR = 1
[ 157.012850] swapper pgtable: 4k pages, 39-bit VAs, pgdp = 0000000042adcba2
[ 157.019715] [ffffffc0095cbce8] pgd=0000000000000000, pud=0000000000000000
[ 157.026499] Internal error: Oops: 96000045 [#1] PREEMPT SMP
[ 157.032065] Modules linked in: mt7663s mt7663_usb_sdio_common mt7615_common
...
[ 157.073007] Process CompositorTileW (pid: 1625, stack limit = 0x000000003f2389fc)
[ 157.080484] CPU: 0 PID: 1625 Comm: CompositorTileW Not tainted 4.19.137 #36
[ 157.092219] pstate: 80000085 (Nzcv daIf -PAN -UAO)
[ 157.097012] pc : __memcpy+0xc0/0x180
[ 157.100585] lr : swiotlb_tbl_unmap_single+0x84/0x14c
[ 157.105540] sp : ffffff8008003cb0
[ 157.108845] x29: ffffff8008003cb0 x28: ffffff9c1a211f60
[ 157.114149] x27: ffffff9c19ecc018 x26: 0000000000001000
[ 157.119452] x25: ffffff9c1a378000 x24: 0000000000000001
[ 157.124755] x23: ffffff9c1a378000 x22: 00000000000001ff
[ 157.130058] x21: 0000000000000000 x20: 00000000fbefe800
[ 157.135360] x19: 0000000000000070 x18: 0000000000000000
[ 157.140663] x17: 0000000000000000 x16: 0000000000000000
[ 157.145965] x15: 0000000000000000 x14: 0000000000000000
[ 157.151267] x13: 0000000000000000 x12: 000000000000000d
[ 157.156569] x11: 000000000000000c x10: 0000000a7befe800
[ 157.161873] x9 : fffffff680000000 x8 : 0000000000000000
[ 157.167175] x7 : 0000000100000003 x6 : ffffffc0095cbce8
[ 157.172479] x5 : 0000000000000000 x4 : 0000000000000000
[ 157.177781] x3 : 0000000000000002 x2 : fffffffffffffff0
[ 157.183085] x1 : ffffffca7befe810 x0 : ffffffc0095cbce8
[ 157.188389] Call trace:
[ 157.190832] __memcpy+0xc0/0x180
[ 157.194053] swiotlb_unmap_sg_attrs+0xa8/0xb0
[ 157.198406] __swiotlb_unmap_sg_attrs+0x8c/0xa4
[ 157.202931] msdc_unprepare_data+0x6c/0x84
[ 157.207019] msdc_request_done+0x58/0x98
[ 157.210934] msdc_data_xfer_done+0x1a8/0x1d0
[ 157.215195] msdc_irq+0x12c/0x17c
[ 157.218505] __handle_irq_event_percpu+0xd8/0x298
[ 157.223202] handle_irq_event+0x60/0xdc
[ 157.227031] handle_fasteoi_irq+0xa4/0x1d4
[ 157.231120] __handle_domain_irq+0x84/0xc4
[ 157.235210] gic_handle_irq+0x124/0x1a4
[ 157.239038] el0_irq_naked+0x4c/0x54
[ 157.242608] Code: 14000028 f1020042 5400024a a8c12027 (a88120c7)
[ 157.248693] ---[ end trace 28b8090135b0a2e1 ]---
[ 157.265589] Kernel panic - not syncing: Fatal exception in interrupt
[ 157.271944] SMP: stopping secondary CPUs
[ 157.275865] Kernel Offset: 0x1c10e00000 from 0xffffff8008000000
[ 157.281779] CPU features: 0x0,2188200c
[ 157.285519] Memory Limit: none
Fixes:
|
||
|---|---|---|
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.