Problem persists in ipipe-core-4.9.51-x86-4, ipipe-4.4 kernel crashes at boot (likely no good support for this SOC). Used program is attached, it is being executed twice, once directly via serial or ssh, once via gdbserver or gdb (tested various combinations).
The directly executed program will stop (supposedly at read), as soon as the debugged program is halted. Norbert >-----Original Message----- >From: Jan Kiszka [mailto:jan.kis...@siemens.com] >Sent: Dienstag, 19. Dezember 2017 10:35 >To: Lange Norbert; Xenomai (xenomai@xenomai.org) >Subject: Re: Weird behavior during debug > >EMAIL from a NON-ANDRITZ SOURCE: as a security measure, please exercise >caution with email content and any links or attachments. > > >On 2017-12-19 09:56, Lange Norbert wrote: >> Hello Jan, >> >> My follow-up post was done after running the latest ipipe-4.9.y patch, with >your fix added on top. >> >> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig >> index 834e6117f5f8..b9f6121c8530 100644 >> --- a/arch/x86/Kconfig >> +++ b/arch/x86/Kconfig >> @@ -83,7 +83,7 @@ config X86 >> select HAVE_AOUT if X86_32 >> select HAVE_ARCH_AUDITSYSCALL >> select HAVE_ARCH_HUGE_VMAP if X86_64 || X86_PAE >> - select HAVE_ARCH_JUMP_LABEL >> + select HAVE_ARCH_JUMP_LABEL if !IPIPE >> select HAVE_ARCH_KASAN if X86_64 && >SPARSEMEM_VMEMMAP >> select HAVE_ARCH_KGDB >> select HAVE_ARCH_KMEMCHECK >> > >Does the problem persist with >- ipipe-core-4.9.51-x86-4 >- ipipe-4.4 >? > >Jan > >> Norbert >> >> >-----Original Message----- >> >From: Jan Kiszka [mailto:jan.kis...@siemens.com] >> >Sent: Dienstag, 19. Dezember 2017 08:16 >> >To: Lange Norbert; Xenomai (xenomai@xenomai.org) >> >Subject: Re: Weird behavior during debug >> > >> >EMAIL from a NON-ANDRITZ SOURCE: as a security measure, please >exercise >> >caution with email content and any links or attachments. >> > >> > >> >On 2017-12-18 15:49, Lange Norbert wrote: >> >> Same issue with latest ipipe. Threads look like this (when the instance >> is >> >halted in the debugger). >> >> Somehow, atleast the RT Tasks will block waiting on a timerfd when one >task >> >is in state XT (whatever that means) >> >> >> >> # cat /proc/xenomai/sched/threads >> >> CPU PID CLASS TYPE PRI TIMEOUT STAT NAME >> >> 0 0 idle core -1 - R [ROOT/0] >> >> 1 0 idle core -1 - R [ROOT/1] >> >> 2 0 idle core -1 - R [ROOT/2] >> >> 3 0 idle core -1 - R [ROOT/3] >> >> 2 264 rt cobalt 20 - XT packetfilter >> >> 1 279 rt cobalt 20 - W packetfilter >> >> >> > >> >Philippe reverted a number of commits in ipipe-4.9.y some days ago. >> >Please retry either with the latest version or the last release >> >(ipipe-core-4.9.51-x86-4). >> > >> >Jan >> > >> >> >-----Original Message----- >> >> >From: Lange Norbert >> >> >Sent: Montag, 18. Dezember 2017 14:43 >> >> >To: Xenomai (xenomai@xenomai.org) >> >> >Subject: Weird behavior during debug >> >> > >> >> >Hello, >> >> > >> >> >I tried debugging a cobalt application, and when I hit a breakpoint >> most >of >> >the >> >> >system freezes. >> >> >If I run for example top over Serial or SSH, then the display won`t be >> >refreshed >> >> >anymore, >> >> >A separate program running as RT Task, waiting for an timer-event >> >(occurring >> >> >10 times a second) will block aswell. >> >> > >> >> >So the debug session seems to block a rather big amount of events. >> >> > >> >> >I am using a 4.9 kernel with ipipe at "x86/ipipe: fix detection of >unhandled >> >> >faults over the head domain". >> >> >Looking at the logs and other threads there seems to be a bigger >> rework >in >> >> >progress? >> >> >I will retry with master, and report back. >> >> > >> >> >Kind regards >> >> > >> >> >Norbert Lange >> >> >> >> ________________________________ >> >> >> >> This message and any attachments are solely for the use of the intended >> >recipients. 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If you are not an intended recipient, you are hereby notified that you received this email in error and that any review, dissemination, distribution or copying of this email and any attachment is strictly prohibited. If you have received this email in error, please contact the sender and delete the message and any attachment from your system. ANDRITZ HYDRO GmbH Rechtsform/ Legal form: Gesellschaft mit beschränkter Haftung / Corporation Firmensitz/ Registered seat: Wien Firmenbuchgericht/ Court of registry: Handelsgericht Wien Firmenbuchnummer/ Company registration: FN 61833 g DVR: 0605077 UID-Nr.: ATU14756806 Thank You ________________________________ -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: timerfd.c URL: <http://xenomai.org/pipermail/xenomai/attachments/20171219/ec797aab/attachment.c> _______________________________________________ Xenomai mailing list Xenomai@xenomai.org https://xenomai.org/mailman/listinfo/xenomai
