urg crash的问题

bluebaby115

yslen01 发表于 2024-10-16 16:13
我是在用urg的时候报错。

比如urg -dir simv1.vdb -full64。

simv1.vdb    这个文件共享下，大家一起测试下

joshua2784920

yslen01 发表于 2024-10-16 16:13
我是在用urg的时候报错。

比如urg -dir simv1.vdb -full64。

vcs_V-2023.12-SP2
vcs_T-2022.06

First of all, I apologize. I made an incorrect statement.
When you use the following command to generate the simv.vdb file:

vcs -cm line+cond testbench.sv -o simv


and then run urg using the generated simv.vdb:

urg -dir simv.vdb -report report_directory

the vcs_V-2023.12-SP2 version crashes, as you experienced.

With the stack limit set to unlimited using the command:

limit stacksize unlimited

the vcs_T-2022.06 version works properly.

This issue doesn't seem to be related to licensing.
Upon analyzing the error message, it seems to be a stack-related crash. The program shows a crash occurring during the nanosleep or waitpid system calls within the libc.so.6 library. The related stack trace shows that the crash is being triggered by Synopsys VCS-related libraries (liberrorinf.so, libucapi.so, etc.), and it appears to be associated with a thread named urg1. There is also a memory allocation issue, as seen in the functions mem_free and snpsCheckFreeFunc.
This seems to be related to the synopsys_checksum fetching process, which involves nanosleep or waitpid. Since the older version (vcs_T-2022.06) works correctly, it appears that the latest version (2024) may have issues with the synopsys_checksum not functioning properly.
I recommend replacing synopsys_checksum with SynopsysMonoSlayer.
Additionally, there is another issue where VCS compilation with the vcs_V-2023.12-SP2 version fails to work properly when the user's disk is under heavy load. When the system is rebooted and under no load, it works fine. This issue also seems related to the nanosleep or waitpid system calls.

13hope

joshua2784920 发表于 2024-10-17 16:43
vcs_V-2023.12-SP2
vcs_T-2022.06

can u share the latest SynopsysMonoSlayer? the repo in github seems to be deleted. thx

sinva

joshua2784920 发表于 2024-10-17 16:43
vcs_V-2023.12-SP2
vcs_T-2022.06

thanks for your answer, bro. Hope someone will find a way to tackle that problem.

tracy6969

joshua2784920 发表于 2024-10-17 16:43
vcs_V-2023.12-SP2
vcs_T-2022.06

thanks for explanation

killwin

VCS 和verdi 2023.12-SP2
直接同名替换就行了

killwin

解压，vcs、verdi  2023.12-sp2版本，直接同名文件覆盖即可

sinva

killwin 发表于 2024-10-20 11:01
解压，vcs、verdi  2023.12-sp2版本，直接同名文件覆盖即可

还是会报错。具体如下：
Error-[UCAPI-FLFM] Ucapi file loading failed
  Error occurred while loading file
  'simv.vdb/snps/coverage/db/testdata/test/testbench.cumulative.xml':  Unknown
  attribute type for TestBench element.

yslen01

joshua2784920 发表于 2024-10-17 16:43
vcs_V-2023.12-SP2
vcs_T-2022.06

Thanks very much!

xiaoth

killwin 发表于 2024-10-20 11:01
解压，vcs、verdi  2023.12-sp2版本，直接同名文件覆盖即可

感谢，试了一下。在简单的case上可以过。

复杂的case，比如用到了urg -parallel，并行合并覆盖率的时候，会在另外的地方crash。