crash during synthesis - crash during synthesis Hi, when I run synthesis and analysis in my project it crashes after 6min. The crash happens every time (with fresh sources and quartus project). I cannot share whole project and stack trace gives no clues where the problem could be. Please find below report: Problem Details Error: *** Fatal Error: Segment Violation: faulting address=(nil), PC=(nil) : 0: Module: quartus_syn Stack Trace: Err Handler 0x122f8: ERR_UNWINDER_BACKTRACE::get_stack_trace(void const**, int, int, void*) + 0xe0 (ccl_err) Err Handler 0x8a1f6: msg_ie_get_call_stack(void*) + 0xc4 (ccl_msg) Err Handler 0x8ba52: MSG_INTERNAL_ERROR::report_fatal(char const*, void*, bool) + 0x40 (ccl_msg) Err Handler 0x14fd2: err_report_fatal_exception(char const*, void*, bool) + 0x6f (ccl_err) Err Handler 0x15b1c: err_sigaction_handler + 0x191 (ccl_err) System 0x12980: (pthread) End-trace Executable: quartus Comment: crash during synth System Information Platform: linux64 OS name: Ubuntu 18.04.1 OS version: 18 Quartus Prime Information Address bits: 64 Version: 22.2.0 Build: 94 Edition: Pro Edition Replies: Re: crash during synthesis Hi, thank you for the update. Fix in Quartus 23.1 will be enough for me. I do not need workaround. Thanks, Piotr Replies: Re: crash during synthesis Hello Wija, Are you still following this discussion? Let me know if there is any update at your end. Replies: Re: crash during synthesis Hi Wija, Update: The fix has been ported to 23.1, and will branch to 22.4 around next week for fix. Regarding current version you are using, I am pending reply on requesting a workaround or possibly a patch. Let me know if that is okay. Replies: Re: crash during synthesis Hi Wija, Update: Developer just got the dump from Verific today that has the fix for this issue. They will test it on all their suites and have it checked in within a week. Will get back to you with findings Replies: Re: crash during synthesis HI Wija, Update: This issue is due to verific bug and developer escalated this to verific team for bug fixes. Still pending more update and will let you know once there is any findings Replies: Re: crash during synthesis Wija, This might be taking sometime and I will let you know once there is any update from engineering. Replies: Re: crash during synthesis Hi Wija, Understood. I had filed a report to the developer for further debug and this is a real bug. I will let you know once there is any update. Replies: Re: crash during synthesis Hi, I can't see any correlation between my case and KDB that you send. 1. I do not use import inside modport 2. I do not have localparam which depends on other parameter in the interface 3. I checked it on Quartus 22.2 and KDB was fixed since 22.1 Replies: Re: crash during synthesis Hi Wija, I found a KDB related to your issue, Please take a look as this might resolve your issue. https://www.intel.com/content/www/us/en/support/programmable/articles/000090049.html Replies: Re: crash during synthesis I am able to reproduce the issue. Let me check this internally. Replies: Re: crash during synthesis HI Wija, Apologize for the delay as i was in a long holiday. May I know what device you use? S10? A10? Can just achieve the design with your top.sv and attach the qar here? Replies: Re: crash during synthesis Hi Wija, Thank you. I will replicate the issue and let you know any findings. Replies: Re: crash during synthesis I was lucky! Please find attached the test case. Regards, Piotr Replies: Re: crash during synthesis Wija, Understood, Since you are not able to attach the design, is it possible to attach the database here? You may refer to link below to compile database without sending your source design files. https://www.intel.com/content/www/us/en/support/programmable/articles/000076181.html We need at least some input other than the message to debug. Replies: Re: crash during synthesis Hi, As I wrote before its not possible to create small test case in situation where Quartus gives mi no clue what part of code is it processing. Is it possible increase verbosity, or add patch with additional logs? With that, I will try to prepare the test case. Regards, Piotr Replies: Re: crash during synthesis Hi Wija, Seem this is valid bug as you had hit fatal error. Is it possible to create small test case replicating the issue? This could help us to investigate and fix the issue