Date: Thu, 30 Jul 2015 12:11:22 -0700 From: Navdeep Parhar <nparhar@gmail.com> To: Current <freebsd-current@freebsd.org> Subject: panic in sysctl code in recent head Message-ID: <CAPFoGT9zw7ShmCwEVA0mEoFr-s0Hv9eft5o6128H4A%2BXp0um0A@mail.gmail.com>
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A kernel built from head as of today panics with this on loading a module. Does anyone else see this too? panic: sleepq_add: td 0xfffff8000e7f89e0 to sleep on wchan 0xffffffff824056c8 with sleeping prohibited cpuid = 3 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2e/frame 0xfffffe02383ebe40 kdb_backtrace() at kdb_backtrace+0x58/frame 0xfffffe02383ebf10 vpanic() at vpanic+0x25e/frame 0xfffffe02383ebfe0 kassert_panic() at kassert_panic+0xcc/frame 0xfffffe02383ec070 sleepq_add() at sleepq_add+0x1ed/frame 0xfffffe02383ec0e0 _sx_xlock_hard() at _sx_xlock_hard+0xa88/frame 0xfffffe02383ec320 __sx_xlock() at __sx_xlock+0x77/frame 0xfffffe02383ec380 _sx_xlock() at _sx_xlock+0x170/frame 0xfffffe02383ec3f0 _rm_rlock_hard() at _rm_rlock_hard+0x323/frame 0xfffffe02383ec490 _rm_rlock() at _rm_rlock+0x173/frame 0xfffffe02383ec4e0 _rm_rlock_debug() at _rm_rlock_debug+0x284/frame 0xfffffe02383ec560 sysctl_root_handler_locked() at sysctl_root_handler_locked+0x148/frame 0xfffffe02383ec5b0 sysctl_root() at sysctl_root+0x38d/frame 0xfffffe02383ec660 userland_sysctl() at userland_sysctl+0x315/frame 0xfffffe02383ec7a0 sys___sysctl() at sys___sysctl+0xfc/frame 0xfffffe02383ec8a0 syscallenter() at syscallenter+0x521/frame 0xfffffe02383ec980 amd64_syscall() at amd64_syscall+0x2a/frame 0xfffffe02383ecab0 Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe02383ecab0 --- syscall (202, FreeBSD ELF64, sys___sysctl), rip = 0x8011b02ba, rsp = 0x7fffffffda28, rbp = 0x7fffffffda60 --- KDB: enter: panic
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