Details
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Bug
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Resolution: Unresolved
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Minor
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None
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None
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None
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3
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9223372036854775807
Description
The sanity-pcc/test_33 on master rhel9.3 kernel failed due to the inconsistent LSOM data:
https://testing.whamcloud.com/test_sessions/5140697d-8ada-4d8f-b39c-3f63085c5cc5
After analyzed, found that it is a common bug in the Lustre. It can be reproduced by the following test scripts:
disable_opencache touch $file2 || error "failed to touch $file" $TRUNCATE $file2 $((1048576 * 4)) || error "Truncate $file2 failed" $MULTIOP $file oc || error "failed to readonly open $file" $TRUNCATE $file2 $((1048576 * 5)) || error "Truncate $file failed" $MULTIOP $file oc || error "failed to readonly open $file" cat $file > /dev/null $TRUNCATE $file2 $((4 * 1048576)) || error "Truncate $file failed" $LFS getsom $file2 $LFS getsom $file #$LCTL set_param ldlm.namespaces.*-ffff8955ed35d800.lru_size=clear $MULTIOP $file oc || error "failed to readonly open $file" $LFS getsom $file #$LCTL set_param ldlm.namespaces.*-ffff8955ed35d800.lru_size=clear $LFS getsom $file
The output:
llite.lustre-ffff8955c4a6e000.opencache_threshold_count=off llite.lustre-ffff8955ed35d800.opencache_threshold_count=off file: /mnt/lustre2/tfile.som size: 4194304 blocks: 1 flags: 4 file: /mnt/lustre/tfile.som size: 4194304 blocks: 1 flags: 4 file: /mnt/lustre/tfile.som size: 5242880 blocks: 1 flags: 4 file: /mnt/lustre/tfile.som size: 5242880 blocks: 1 flags: 4
The SOM size should be 4MiB, but the final SOM size was 5MiB...
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Activity
| Summary | Original: Inconsistent SOM data on rhel9.3 | New: sanity-pcc test_33 Inconsistent SOM data on rhel9.3 |
| Description |
Original:
The sanity-pcc/test_33 on master rhel9.3 kernel failed due to the inconsistent LSOM data:
[https://testing.whamcloud.com/test_sessions/5140697d-8ada-4d8f-b39c-3f63085c5cc5] After analyzed, found that it is a common bug in the Lustre. It can be reproduced by the following test scripts: disable_opencache touch $file2 || error "failed to touch $file" $TRUNCATE $file2 $((1048576 * 4)) || error "Truncate $file2 failed" $MULTIOP $file oc || error "failed to readonly open $file" $TRUNCATE $file2 $((1048576 * 5)) || error "Truncate $file failed" $MULTIOP $file oc || error "failed to readonly open $file" cat $file > /dev/null $TRUNCATE $file2 $((4 * 1048576)) || error "Truncate $file failed" $LFS getsom $file2 $LFS getsom $file #$LCTL set_param ldlm.namespaces.*-ffff8955ed35d800.lru_size=clear $MULTIOP $file oc || error "failed to readonly open $file" $LFS getsom $file #$LCTL set_param ldlm.namespaces.*-ffff8955ed35d800.lru_size=clear $LFS getsom $file The output: llite.lustre-ffff8955c4a6e000.opencache_threshold_count=off llite.lustre-ffff8955ed35d800.opencache_threshold_count=off file: /mnt/lustre2/tfile.som size: 4194304 blocks: 1 flags: 4 file: /mnt/lustre/tfile.som size: 4194304 blocks: 1 flags: 4 file: /mnt/lustre/tfile.som size: 5242880 blocks: 1 flags: 4 file: /mnt/lustre/tfile.som size: 5242880 blocks: 1 flags: 4 The SOM size should be 4MiB, but the final SOM size was 5MiB... |
New:
The sanity-pcc/test_33 on master rhel9.3 kernel failed due to the inconsistent LSOM data:
[https://testing.whamcloud.com/test_sessions/5140697d-8ada-4d8f-b39c-3f63085c5cc5] After analyzed, found that it is a common bug in the Lustre. It can be reproduced by the following test scripts: {code:java} disable_opencache touch $file2 || error "failed to touch $file" $TRUNCATE $file2 $((1048576 * 4)) || error "Truncate $file2 failed" $MULTIOP $file oc || error "failed to readonly open $file" $TRUNCATE $file2 $((1048576 * 5)) || error "Truncate $file failed" $MULTIOP $file oc || error "failed to readonly open $file" cat $file > /dev/null $TRUNCATE $file2 $((4 * 1048576)) || error "Truncate $file failed" $LFS getsom $file2 $LFS getsom $file #$LCTL set_param ldlm.namespaces.*-ffff8955ed35d800.lru_size=clear $MULTIOP $file oc || error "failed to readonly open $file" $LFS getsom $file #$LCTL set_param ldlm.namespaces.*-ffff8955ed35d800.lru_size=clear $LFS getsom $file {code} The output: {code:java} llite.lustre-ffff8955c4a6e000.opencache_threshold_count=off llite.lustre-ffff8955ed35d800.opencache_threshold_count=off file: /mnt/lustre2/tfile.som size: 4194304 blocks: 1 flags: 4 file: /mnt/lustre/tfile.som size: 4194304 blocks: 1 flags: 4 file: /mnt/lustre/tfile.som size: 5242880 blocks: 1 flags: 4 file: /mnt/lustre/tfile.som size: 5242880 blocks: 1 flags: 4{code} The SOM size should be 4MiB, but the final SOM size was 5MiB... |