3516A 程序运行一段时间报错，麻烦大牛帮忙诊断一下。

海思

本帖最后由 beike2001 于 2017-1-2 11:10 编辑

先祝福大家新年快乐:P

程序刚开始运行正常，后来感觉越来越慢，最后程序崩溃退出，Log如下：

Main.out invoked oom-killer: gfp_mask=0x201da, order=0, oom_adj=0, oom_score_adj=0
Backtrace:
[] (dump_backtrace+0x0/0x110) from [] (dump_stack+0x18/0x1c)
r6:00007a1d r5:0000035a r4:c041fd00 r3:c049ea40
[] (dump_stack+0x0/0x1c) from [] (dump_header.isra.16+0x58/0x150)
[] (dump_header.isra.16+0x0/0x150) from [] (oom_kill_process.part.19.constprop.23+0x4c/0x21c)
r8:00000000 r7:00000000 r6:00007a1d r5:0000035a r4:c041fd00
[] (oom_kill_process.part.19.constprop.23+0x0/0x21c) from [] (out_of_memory+0x310/0x32c)
[] (out_of_memory+0x0/0x32c) from [] (__alloc_pages_nodemask+0x680/0x694)
[] (__alloc_pages_nodemask+0x0/0x694) from [] (filemap_fault+0x21c/0x3f4)
[] (filemap_fault+0x0/0x3f4) from [] (__do_fault+0x70/0x498)
[] (__do_fault+0x0/0x498) from [] (handle_pte_fault+0x74/0x60c)
[] (handle_pte_fault+0x0/0x60c) from [] (handle_mm_fault+0x80/0xb4)
[] (handle_mm_fault+0x0/0xb4) from [] (do_page_fault+0x164/0x27c)
[] (do_page_fault+0x0/0x27c) from [] (do_PrefetchAbort+0x3c/0xa0)
[] (do_PrefetchAbort+0x0/0xa0) from [] (ret_from_exception+0x0/0x10)
Exception stack(0xc7bc3fb0 to 0xc7bc3ff8)
3fa0:                                  b5ae0b14 00c06d40 b5ae0ad0 00000058
3fc0: b5ae0d00 00000000 b5ae0d18 42424000 0000ba50 00000002 b5ae0d18 b5ae1850
3fe0: b6c3dd3c b5ae0a90 b699081c b6989704 60000010 ffffffff
r8:0000ba50 r7:42424000 r6:ffffffff r5:60000010 r4:b6989704
Mem-info:
Normal per-cpu:
CPU 0: hi: 42, btch: 7 usd:  41
active_anon:27624 inactive_anon:0 isolated_anon:0
active_file:172 inactive_file:237 isolated_file:0
unevictable:0 dirty:0 writeback:0 unstable:0
free:344 slab_reclaimable:100 slab_unreclaimable:1186
mapped:175 shmem:1 pagetables:88 bounce:0
Normal free:1376kB min:1440kB low:1800kB high:2160kB active_anon:110496kB inactive_anon:0kB active_file:688kB inactive_file:948kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:130048kB mlocked:0kB dirty:0kB writeback:0kB mapped:700kB shmem:4kB slab_reclaimable:400kB slab_unreclaimable:4744kB kernel_stack:296kB pagetables:352kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:2520 all_unreclaimable? yes
lowmem_reserve[]: 0 0
Normal: 16*4kB 14*8kB 1*16kB 1*32kB 6*64kB 2*128kB 0*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 1376kB
410 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
Total swap = 0kB
32768 pages of RAM
443 free pages
1507 reserved pages
768 slab pages
233 pages shared
0 pages swap cached
[ pid ] uid  tgid total_vm    rss cpu oom_adj oom_score_adj name
[  603]    0 603    267    28 0    -17       -1000 udevd
[  671]    0 671    267    26 0    -17       -1000 udevd
[  680]    0 680    267    28 0    -17       -1000 udevd
[  860]    0 860    446    25 0    0          0 sh
[ 1082]    0  1082 36017 27692 0    0          0 Main.out
Out of memory: Kill process 1082 (Main.out) score 858 or sacrifice child
Killed process 1082 (Main.out) total-vm:144068kB, anon-rss:110068kB, file-rss:700kB
MMB LEAK(pid=1082): 0x99B76000, 1384448 bytes, ''
mmz_userdev_release: mmb<0x99B76000> mapped to userspace 0xb65cf000 will be force unmaped!
MMB LEAK(pid=1082): 0x99CC8000, 2764800 bytes, ''
mmz_userdev_release: mmb<0x99CC8000> mapped to userspace 0xb632c000 will be force unmaped!
MMB LEAK(pid=1082): 0x9B67E000, 233472 bytes, ''
mmz_userdev_release: mmb<0x9B67E000> mapped to userspace 0xb52aa000 will be force unmaped!
MMB LEAK(pid=1082): 0x9B6B7000, 921600 bytes, ''
mmz_userdev_release: mmb<0x9B6B7000> mapped to userspace 0xb51c9000 will be force unmaped!
MMB LEAK(pid=1082): 0x9B798000, 2764800 bytes, ''
mmz_userdev_release: mmb<0x9B798000> mapped to userspace 0xb4f26000 will be force unmaped!
MMB LEAK(pid=1082): 0x9BA3B000, 692224 bytes, ''
mmz_userdev_release: mmb<0x9BA3B000> mapped to userspace 0xb4e7d000 will be force unmaped!
MMB LEAK(pid=1082): 0x9BAE4000, 233472 bytes, ''
mmz_userdev_release: mmb<0x9BAE4000> mapped to userspace 0xb4e44000 will be force unmaped!
MMB LEAK(pid=1082): 0x9BB1D000, 61440 bytes, ''

大牛帮忙诊断一下

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victor

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victor 2017-01-02 12:56:20

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你这个是内核崩溃，原因的话是内存泄露，所以你运行一段时间后，设备就会崩溃。你定位一下后面这段信息：
Out of memory: Kill process 1082 (Main.out) score 858 or sacrifice child
Killed process 1082 (Main.out) total-vm:144068kB, anon-rss:110068kB, file-rss:700kB
MMB LEAK(pid=1082): 0x99B76000, 1384448 bytes, ''
mmz_userdev_release: mmb<0x99B76000> mapped to userspace 0xb65cf000 will be force unmaped!
MMB LEAK(pid=1082): 0x99CC8000, 2764800 bytes, ''
mmz_userdev_release: mmb<0x99CC8000> mapped to userspace 0xb632c000 will be force unmaped!
MMB LEAK(pid=1082): 0x9B67E000, 233472 bytes, ''
mmz_userdev_release: mmb<0x9B67E000> mapped to userspace 0xb52aa000 will be force unmaped!
MMB LEAK(pid=1082): 0x9B6B7000, 921600 bytes, ''
mmz_userdev_release: mmb<0x9B6B7000> mapped to userspace 0xb51c9000 will be force unmaped!
MMB LEAK(pid=1082): 0x9B798000, 2764800 bytes, ''
mmz_userdev_release: mmb<0x9B798000> mapped to userspace 0xb4f26000 will be force unmaped!
MMB LEAK(pid=1082): 0x9BA3B000, 692224 bytes, ''
mmz_userdev_release: mmb<0x9BA3B000> mapped to userspace 0xb4e7d000 will be force unmaped!
MMB LEAK(pid=1082): 0x9BAE4000, 233472 bytes, ''
mmz_userdev_release: mmb<0x9BAE4000> mapped to userspace 0xb4e44000 will be force unmaped!
MMB LEAK(pid=1082): 0x9BB1D000, 61440 bytes, ''

上面注明了是内存泄露，然后也给出了进程的pid，你根据这个pid查一下代码，看看有没有导致内存泄露的地方，比如动态分配内存没有回收之类的

beike2001

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beike2001 2017-01-02 13:14:25

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[quote][url=forum.php?mod=redirect&goto=findpost&pid=43604&ptid=13840]victor 发表于 2017-1-2 12:56[/url]
你这个是内核崩溃，原因的话是内存泄露，所以你运行一段时间后，设备就会崩溃。你定位一下后面这段信息：
...[/quote]

3ks
这个是程序异常退出后，没有来得及正常执行完释放内存部分代码导致的。
关键是前面log信息，有没有在海思平台遇到同样问题的？寻求解决办法。