Issue #2436 has been updated by ftigeot.
I have been bitten by the same assertion on a 32 threads dual-cpu system. Running poudriere with more than 10 jobs is enough to panic the machine in less than one hour. ---------------------------------------- Bug #2436: panic: assertion "lp->lwp_qcpu == dd->cpuid" failed in dfly_acquire_curproc http://bugs.dragonflybsd.org/issues/2436 Author: thomas.nikolajsen Status: New Priority: Normal Assignee: Category: Target version: On current master changing cpumask using dfly scheduler can result in panic. Problem is on both DragonFly i386 & x86_64. Scheduler bsd4 doesn't have this problem. E.g. on 8 core system running 'usched dfly:3 true' a few times while doing buildkernel triggers panic. Core dump avail on request. -thomas - Unread portion of the kernel message buffer: panic: assertion "lp->lwp_qcpu == dd->cpuid" failed in dfly_acquire_curproc at /usr/src/sys/kern/usched_dfly.c:382 cpuid = 0 Trace beginning at frame 0xe4347c54 panic(ffffffff,0,c0396874,e4347c88,d92e1b80) at panic+0x1a8 0xc01bf150 panic(c0396874,c03af2b4,c03af386,c03af174,17e) at panic+0x1a8 0xc01bf150 dfly_acquire_curproc(daee0e00,e4347d00,10,0,0) at dfly_acquire_curproc+0x1ca 0xc01ca47b syscall2(e4347d40) at syscall2+0x420 0xc037b5af Xint0x80_syscall() at Xint0x80_syscall+0x36 0xc034c246 Debugger("panic") CPU0 stopping CPUs: 0x000000fe stopped .. _get_mycpu () at ./machine/thread.h:79 79 __asm ("movl %%fs:globaldata,%0" : "=r" (gd) : "m"(__mycpu__dummy)); (kgdb) bt #0 _get_mycpu () at ./machine/thread.h:79 #1 md_dumpsys (di=0xc079d820) at /usr/src/sys/platform/pc32/i386/dump_machdep.c:266 #2 0xc01be8fe in dumpsys () at /usr/src/sys/kern/kern_shutdown.c:925 #3 0xc015938a in db_fncall (dummy1=-1070290686, dummy2=0, dummy3=-1072326021, dummy4=0xe4347ae4 "4m4\300\037\361<\300") at /usr/src/sys/ddb/db_command.c:539 #4 0xc015986f in db_command (aux_cmd_tablep_end=0xc03ee69c, aux_cmd_tablep=0xc03ee698, cmd_table=<optimized out>, last_cmdp=<optimized out>) at /usr/src/sys/ddb/db_command.c:401 #5 db_command_loop () at /usr/src/sys/ddb/db_command.c:467 #6 0xc015c3ce in db_trap (type=3, code=0) at /usr/src/sys/ddb/db_trap.c:71 #7 0xc034ac75 in kdb_trap (type=3, code=0, regs=0xe4347c04) at /usr/src/sys/platform/pc32/i386/db_interface.c:151 #8 0xc037ae34 in trap (frame=0xe4347c04) at /usr/src/sys/platform/pc32/i386/trap.c:850 #9 0xc034c197 in calltrap () at /usr/src/sys/platform/pc32/i386/exception.s:787 #10 0xc034a902 in breakpoint () at ./cpu/cpufunc.h:72 #11 Debugger (msg=0xc03ad70a "panic") at /usr/src/sys/platform/pc32/i386/db_interface.c:333 #12 0xc01bf165 in panic ( fmt=0xc0396874 "assertion \"%s\" failed in %s at %s:%u") at /usr/src/sys/kern/kern_shutdown.c:822 #13 0xc01ca47b in dfly_acquire_curproc (lp=0xdaee0e00) at /usr/src/sys/kern/usched_dfly.c:382 #14 0xc037b5af in userexit (lp=<optimized out>) at /usr/src/sys/platform/pc32/i386/trap.c:362 #15 syscall2 (frame=0xe4347d40) at /usr/src/sys/platform/pc32/i386/trap.c:1419 #16 0xc034c246 in Xint0x80_syscall () at /usr/src/sys/platform/pc32/i386/exception.s:878 #17 0x0000001f in ?? () Backtrace stopped: previous frame inner to this frame (corrupt stack?) -- You have received this notification because you have either subscribed to it, or are involved in it. To change your notification preferences, please click here: http://bugs.dragonflybsd.org/my/account
