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17823171af
Which confuse pm_qos_request and dev_pm_qos_request.
So get this bug:
[ 0.264863] ==================================================================
[ 0.265600] BUG: KASAN: slab-out-of-bounds in find_next_bit+0x38/0x9c
[ 0.266241] Read of size 8 at addr ffffffc0d27c4eb0 by task swapper/0/1
[ 0.266887]
[ 0.267055] CPU: 5 PID: 1 Comm: swapper/0 Not tainted 4.19.126 #121
[ 0.267671] Hardware name: Rockchip RK3399 Evaluation Board v3 (Android) (DT)
[ 0.268370] Call trace:
[ 0.268632] dump_backtrace+0x0/0x220
[ 0.269004] show_stack+0x14/0x1c
[ 0.269344] dump_stack+0xd8/0x118
[ 0.269693] print_address_description+0x80/0x2e4
[ 0.270163] __kasan_report+0x15c/0x1c4
[ 0.270550] kasan_report+0x10/0x18
[ 0.270904] __asan_load8+0x80/0x88
[ 0.271259] find_next_bit+0x38/0x9c
[ 0.271620] cpumask_next+0x20/0x28
[ 0.271977] pm_qos_update_target+0x380/0x65c
[ 0.272417] apply_constraint+0x94/0x13c
[ 0.272813] __dev_pm_qos_add_request+0x204/0x258
[ 0.273284] dev_pm_qos_expose_latency_limit+0x84/0x1ac
[ 0.273806] register_cpu+0x1a8/0x1c4
[ 0.274177] topology_init+0x90/0xd0
[ 0.274539] do_one_initcall+0x1fc/0x3d8
[ 0.274937] do_initcall_level+0x1c4/0x1f8
[ 0.275350] do_basic_setup+0x68/0x80
[ 0.275722] kernel_init_freeable+0x108/0x194
[ 0.276161] kernel_init+0x14/0x2a0
[ 0.276514] ret_from_fork+0x10/0x18
[ 0.276870]
[ 0.277027] Allocated by task 1:
[ 0.277358] __kasan_kmalloc+0xf0/0x1d4
[ 0.277740] kasan_kmalloc+0xc/0x14
[ 0.278083] __kmalloc+0x114/0x378
[ 0.278424] kobject_get_path+0x60/0xe4
[ 0.278804] kobject_uevent_env+0x174/0x81c
[ 0.279217] kobject_uevent+0x10/0x18
[ 0.279581] device_add+0xa3c/0xe68
[ 0.279929] device_register+0x1c/0x28
[ 0.280300] register_cpu+0x158/0x1c4
[ 0.280664] topology_init+0x90/0xd0
[ 0.281018] do_one_initcall+0x1fc/0x3d8
[ 0.281410] do_initcall_level+0x1c4/0x1f8
[ 0.281814] do_basic_setup+0x68/0x80
[ 0.282183] kernel_init_freeable+0x108/0x194
[ 0.282610] kernel_init+0x14/0x2a0
[ 0.282957] ret_from_fork+0x10/0x18
[ 0.283305]
[ 0.283461] Freed by task 1:
[ 0.283758] __kasan_slab_free+0x140/0x234
[ 0.284164] kasan_slab_free+0x10/0x1c
[ 0.284533] kfree+0x1a0/0x730
[ 0.284840] kobject_uevent_env+0x208/0x81c
[ 0.285248] kobject_uevent+0x10/0x18
[ 0.285615] device_add+0xa3c/0xe68
[ 0.285962] device_register+0x1c/0x28
[ 0.286337] register_cpu+0x158/0x1c4
[ 0.286699] topology_init+0x90/0xd0
[ 0.287054] do_one_initcall+0x1fc/0x3d8
[ 0.287441] do_initcall_level+0x1c4/0x1f8
[ 0.287848] do_basic_setup+0x68/0x80
[ 0.288210] kernel_init_freeable+0x108/0x194
[ 0.288643] kernel_init+0x14/0x2a0
[ 0.288987] ret_from_fork+0x10/0x18
[ 0.289336]
[ 0.289498] The buggy address belongs to the object at ffffffc0d27c4e00
[ 0.289498] which belongs to the cache kmalloc-128 of size 128
[ 0.290726] The buggy address is located 48 bytes to the right of
[ 0.290726] 128-byte region [ffffffc0d27c4e00, ffffffc0d27c4e80)
[ 0.291915] The buggy address belongs to the page:
[ 0.292395] page:ffffffbf0349f100 count:1 mapcount:0 mapping:ffffffc00a2c7c00 index:0x0
[ 0.293184] flags: 0x200(slab)
[ 0.293504] raw: 0000000000000200 dead000000000100 dead000000000200 ffffffc00a2c7c00
[ 0.294273] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
[ 0.295028] page dumped because: kasan: bad access detected
[ 0.295576]
[ 0.295731] Memory state around the buggy address:
[ 0.296194] ffffffc0d27c4d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 0.296905] ffffffc0d27c4e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 0.297617] >ffffffc0d27c4e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 0.298323] ^
[ 0.298787] ffffffc0d27c4f00: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc
[ 0.299498] ffffffc0d27c4f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 0.300206] ==================================================================
Fixes: 723feab600 ("ANDROID: GKI: QoS: Enhance framework to support cpu/irq specific QoS requests")
Change-Id: I87d682d30d8147cdba6309a9d4ffd6dcb25e0960
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
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
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In order to build the documentation, use ``make htmldocs`` or
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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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.