[Crash-utility] Re: [PATCH v3] add "files -n" command for an inode
Hi Lianbo,
> Hi Lianbo,
>
> 在 2023/11/6 11:35, lijiang 写道:
>> [EXTERNAL EMAIL NOTICE: This email originated from an external
>> sender. Please be mindful of safe email handling and proprietary
>> information protection practices.]
>>
>> On Fri, Nov 3, 2023 at 11:30 PM Shijie Huang
>>
<shijie@amperemail.onmicrosoft.com<mailto:shijie@amperemail.onmicrosoft.com>>
>>
>> wrote:
>>
>> 在 2023/11/3 21:14, lijiang 写道:
>>
>> I guess all the invalid page is "0" which means an empty page cache
>> slot, so could you please try this:
>>
>> No, last time it printed some invalid pages(not only zero values),
>> you could refer to this:
>>
>> crash> files -n ffff8ea84c130938
>> INODE NRPAGES
>> ffff8ea84c130938 62527
>>
>> files: page_to_nid: invalid page: 0
>> files: page_to_nid: invalid page: 0
>> files: page_to_nid: invalid page: 0
>> files: page_to_nid: invalid page: 10
>> files: page_to_nid: invalid page: 10
>> files: page_to_nid: invalid page: 10
>> files: page_to_nid: invalid page: 20
>> files: page_to_nid: invalid page: 20
>> files: page_to_nid: invalid page: 20
>> files: page_to_nid: invalid page: 30
>> files: page_to_nid: invalid page: 30
>> files: page_to_nid: invalid page: 30
>> files: page_to_nid: invalid page: 40
>> files: page_to_nid: invalid page: 40
>> files: page_to_nid: invalid page: 40
>> files: page_to_nid: invalid page: 50
>> files: page_to_nid: invalid page: 50
>> files: page_to_nid: invalid page: 50
>> files: page_to_nid: invalid page: 60
>> files: page_to_nid: invalid page: 60
>> ...
>
> I cannot find the kernel version in your email.
>
> could you please tell me your kernel version?
Sure, this issue was reproduced on the 6.5.0-rc1, I mentioned the kernel
---------------------------------------------------------------------------------------
crash> sys
KERNEL: /root/linux-linus/vmlinux
DUMPFILE: /proc/kcore
CPUS: 160
DATE: Wed Dec 13 16:53:34 CST 2023
UPTIME: 00:04:42
LOAD AVERAGE: 1.41, 2.05, 0.96
TASKS: 1889
NODENAME: fedora
RELEASE: 6.5.0-rc1-00001-gecbb6ce3a12d
VERSION: #54 SMP Wed Dec 13 16:45:04 CST 2023
MACHINE: aarch64 (unknown Mhz)
MEMORY: 510.8 GB
crash> files
PID: 4960 TASK: ffff4001dd44ec00 CPU: 116 COMMAND: "crash"
ROOT: / CWD: /root/tool/crash/crash
FD FILE DENTRY INODE TYPE PATH
0 ffff3fff8ec01600 ffff3fffa9d48d80 ffff3fff8b443f60 CHR /dev/pts/0
1 ffff3fff8ec01600 ffff3fffa9d48d80 ffff3fff8b443f60 CHR /dev/pts/0
2 ffff3fff8ec01600 ffff3fffa9d48d80 ffff3fff8b443f60 CHR /dev/pts/0
3 ffff4000073a7600 ffff07ff805395c0 ffff07ff89b838f0 CHR /dev/null
4 ffff4000073a5f00 ffff07ff8ca11740 ffff07ff8f6cc440 REG /proc/kcore
5 ffff3fffea10ce00 ffff3fff9c5da0c0 ffff3fff8b4b97f8 REG
/root/linux-linus/vmlinux
6 ffff3fffea10d800 ffff3fffa0550d80 ffff3fff8b603330 FIFO
7 ffff3fffea10fe00 ffff3fffa0550d80 ffff3fff8b603330 FIFO
8 ffff3fffea10f900 ffff3fffa0551c80 ffff3fff8b6046b0 FIFO
9 ffff3fffea10d300 ffff3fffa0551c80 ffff3fff8b6046b0 FIFO
10 ffff3fffea10fb00 ffff3fffa0550e40 ffff3fff8b600000 FIFO
11 ffff3fffea10ee00 ffff3fffa0550e40 ffff3fff8b600000 FIFO
12 ffff3fffea10fa00 ffff3fffa0551d40 ffff3fff8b601ad0 FIFO
13 ffff3fffea10c400 ffff3fffa0551d40 ffff3fff8b601ad0 FIFO
14 ffff3fffea10dd00 ffff3fff9c5da0c0 ffff3fff8b4b97f8 REG
/root/linux-linus/vmlinux
15 ffff3fffea10ea00 ffff3fff9ddf9bc0 ffff3fff99eee280 REG /tmp/#260
17 ffff3fffe2650500 ffff3fffe316efc0 ffff3fff8b5789c0 FIFO
crash> files -n ffff3fff8b4b97f8
INODE NRPAGES
ffff3fff8b4b97f8 62198
NODE PAGES
0 0
1 62198
time cost:0 s
crash>
---------------------------------------------------------------------------------------
I tested the kernel 6.5-rc1 with the "crash_core: export vmemmap when
CONFIG_SPARSEMEM_VMEMMAP is enabled"
I cannot reproduce it....
Thanks
Huang Shijie