Darren, On Sat, Mar 25, 2017 at 03:03:14AM +0200, Konstantin Belousov wrote: K> On Fri, Mar 24, 2017 at 05:40:15PM +0000, Darren wrote: K> > I am getting this panic every hour to every couple of hours. K> > K> > FreeBSD asrock 12.0-CURRENT FreeBSD 12.0-CURRENT #0 r315684: Thu Mar 23 14:56:45 EDT 2017 darren_at_asrock:/usr/obj/usr/src/sys/GENERIC amd64 K> > I manually typed out the following, apologize for any typos. K> > K> > K> > panic: sleepq_add: td 0xfffff80003c01a40 to sleep on wchan 0xfffff80006f0873c with sleeping prohibited K> > cpuid = 0 K> > time = 1490372797 K> > KDB: stack backtrace: K> > db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe0072e33690 K> > vpanic() at vpanic+0x19c/frame 0xfffffe0072e33710 K> > kassert_panic() at kassert_panic+0x126/frame 0xfffffe0072e33780 K> > sleepq_add() at sleepq_add+0x34f/frame 0xfffffe0072337d0 K> > _sleep() at _sleep+0x28d/frame 0xfffffe0072e33870 K> > soclose() at soclose+0xda/frame 0xfffffe0072e338b0 K> > _fdrop() at _fdrop+0x1a/frame 0xfffffe0072e338d0 K> > sendfile_iodone() at sendfile_iodone+0x19d/frame 0xfffffe0072e33910 K> > vnode_pager_generic_getpages_done_async() at vnode_pager_generic_getpages_done_async+037/frame 0xfffffe0072e33930 K> > bufdone() at bufdone+0x64/frame 0xfffffe0072e33960 K> > g_io_deliver() at g_io_deliver+0x276/frame 0xfffffe0072e339b0 K> > g_io_deliver() at g_io_deliver+0x276/frame 0xfffffe0072e33a00 K> > g_disk_done() at g_disk_done+0x104/frame 0xfffffe0072e33a40 K> > xpt_done_process() at xpt_done_process+0x35f/frame 0xfffffe0072e33a80 K> > xpt_done_direct() at ahci_ch_intr_direct+0xd5/frame 0xfffffe0072e33af0 K> > ahci_itr() at ahci_intr+0x102/frame 0xfffffe0072e33b20 K> > intr_event_execute_handlers() at intr_event_execute_handlers+0x99/frame 0xfffffe0072e33b60 K> > ithread_loop() at ithread_loop+0xb6/frame 0xfffffe0072e33bb0 K> > fork_exit() at fork_exit+0x84/frame 0xfffffe0072e33bf0 K> > fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0072e33bf0 K> > --- trap 0, rip = 0, rsp = 0, rbp = 0 --- K> > KDB: enter: panic K> > [ thread pid 12 tid 100038 ] K> > Stopped at kdb_enter+0x3b: movq $0,kdb_why K> > db> K> K> Indeed, the context where sendfile_iodone() is executed, cannot call fdrop(). Can you please test the attached patch? -- Totus tuus, Glebius.
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