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8c40292be9
Syzkaller hit 'WARNING in __alloc_pages_nodemask' bug. WARNING: CPU: 1 PID: 1473 at mm/page_alloc.c:4377 __alloc_pages_nodemask+0x4da/0x2130 Kernel panic - not syncing: panic_on_warn set ... Call Trace: alloc_pages_current+0xb1/0x1e0 kmalloc_order+0x1f/0x60 kmalloc_order_trace+0x1d/0x120 fb_alloc_cmap_gfp+0x85/0x2b0 fb_set_user_cmap+0xff/0x370 do_fb_ioctl+0x949/0xa20 fb_ioctl+0xdd/0x120 do_vfs_ioctl+0x186/0x1070 ksys_ioctl+0x89/0xa0 __x64_sys_ioctl+0x74/0xb0 do_syscall_64+0xc8/0x550 entry_SYSCALL_64_after_hwframe+0x49/0xbe This is a warning about order >= MAX_ORDER and the order is from userspace ioctl. Add flag __NOWARN to silence this warning. Signed-off-by: Jiufei Xue <jiufei.xue@linux.alibaba.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> |
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| 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.