Date: Sat, 25 Oct 2014 19:21:13 -0400 (EDT) From: Rick Macklem <rmacklem@uoguelph.ca> To: Ronald Klop <ronald@klop.ws> Cc: freebsd-fs@freebsd.org, freebsd-arm@freebsd.org Subject: Re: panic in nfs on arm Message-ID: <1388627434.7506173.1414279273153.JavaMail.root@uoguelph.ca> In-Reply-To: <op.xn95m7ajeclrs1@82-171-231-144.ip.telfort.nl>
next in thread | previous in thread | raw e-mail | index | archive | help
Ronald Klop wrote: > Hi, > > I got a panic on my arm computer while building a port with > /usr/ports > mounted from my FreeBSD-10-STABLE/amd64 machine. > > This is the machine which paniced: > FreeBSD 11.0-CURRENT #1 r272028M: Tue Sep 23 17:11:45 CEST 2014 > root@sjakie.klop.ws:/usr/obj-arm/arm.arm/usr/src-arm/sys/SHEEVAPLUG > arm > > > Tracing pid 90295 tid 100119 td 0xc5f8c960 > db_trace_self() at db_trace_self > pc = 0xc0bb12c8 lr = 0xc0bb1354 (db_trace_thread+0x50) > sp = 0xdf29e5d0 fp = 0xc3e07120 > db_trace_thread() at db_trace_thread+0x50 > pc = 0xc0bb1354 lr = 0xc0936314 (db_command_init+0x5a4) > sp = 0xdf29e630 fp = 0xc3e07120 > db_command_init() at db_command_init+0x5a4 > pc = 0xc0936314 lr = 0xc0935ad0 (db_skip_to_eol+0x484) > sp = 0xdf29e648 fp = 0xc3e07120 > r4 = 0xc0c8d350 r5 = 0x00000000 > db_skip_to_eol() at db_skip_to_eol+0x484 > pc = 0xc0935ad0 lr = 0xc0935c38 (db_command_loop+0x5c) > sp = 0xdf29e6e8 fp = 0xc3e07120 > r4 = 0xdf29e6fc r5 = 0xc0c8d64c > r6 = 0x3cd90e75 r7 = 0x00000000 > r8 = 0x00000001 r10 = 0x600000d3 > db_command_loop() at db_command_loop+0x5c > pc = 0xc0935c38 lr = 0xc0937f80 (X_db_sym_numargs+0xec) > sp = 0xdf29e6f0 fp = 0xc3e07120 > X_db_sym_numargs() at X_db_sym_numargs+0xec > pc = 0xc0937f80 lr = 0xc0a6f0c0 (kdb_trap+0x94) > sp = 0xdf29e808 fp = 0xc3e07120 > r4 = 0xdf29e8f8 > kdb_trap() at kdb_trap+0x94 > pc = 0xc0a6f0c0 lr = 0xc0bc1d60 (badaddr_read+0x274) > sp = 0xdf29e828 fp = 0xc3e07120 > r4 = 0xdf29e8f8 r5 = 0x00000001 > r6 = 0x3cd90e75 r7 = 0xc5f8c960 > r8 = 0xdf29e8f8 r10 = 0xdf2a1eb0 > badaddr_read() at badaddr_read+0x274 > pc = 0xc0bc1d60 lr = 0xc0bc1e98 (badaddr_read+0x3ac) > sp = 0xdf29e840 fp = 0xc3e07120 > r4 = 0xc5f8c960 r5 = 0xdf29e8f8 > r6 = 0x3cd90e05 > badaddr_read() at badaddr_read+0x3ac > pc = 0xc0bc1e98 lr = 0xc0bc2278 (data_abort_handler+0x10c) > sp = 0xdf29e858 fp = 0xc3e07120 > r4 = 0xc0cd8af8 r5 = 0xffff1004 > data_abort_handler() at data_abort_handler+0x10c > pc = 0xc0bc2278 lr = 0xc0bb2f40 (exception_exit) > sp = 0xdf29e8f8 fp = 0xc3e07120 > r4 = 0xffffffff r5 = 0xffff1004 > r6 = 0x3cd90e05 r7 = 0xc0e0ea48 > r8 = 0x0000000f r9 = 0x00000101 > r10 = 0x0000001d > exception_exit() at exception_exit > pc = 0xc0bb2f40 lr = 0xc0b8daf8 (uma_reclaim+0x1f8) > sp = 0xdf29e948 fp = 0xc3e07120 > r0 = 0xba9b9127 r1 = 0x8b3de5fb > r2 = 0xc61c1fc8 r3 = 0xba9b9126 > r4 = 0x00000000 r5 = 0xc61c1fc8 > r6 = 0x3cd90e05 r7 = 0xc0e0ea48 > r8 = 0x0000000f r9 = 0x00000101 > r10 = 0x0000001d r12 = 0x00000000 > uma_reclaim() at uma_reclaim+0x24c This looks to me like a crash in uma_reclaim() and I find UMA way too obscure to understand. I have no idea if it might be related, but alc@ put a fix for low memory situations in r272071 (or maybe it's r272221?). Might be worth trying a slightly newer kernel to see if the problem still occurs. And hopefully someone more conversant with UMA (or this stack trace) can help more. rick > pc = 0xc0b8db4c lr = 0xc0b8c800 (uma_zalloc_arg+0x2f0) > sp = 0xdf29e978 fp = 0xdf29ec10 > r4 = 0xc3e071d8 r5 = 0xc0e0ea00 > r6 = 0xc3e07120 r7 = 0x00000000 > r8 = 0x00000102 r9 = 0xdf29ecf8 > r10 = 0xc61c0760 > uma_zalloc_arg() at uma_zalloc_arg+0x2f0 > pc = 0xc0b8c800 lr = 0xc09e1df0 (nfscl_nget+0x308) > sp = 0xdf29e990 fp = 0xdf29ec10 > r4 = 0x9bb9fa43 r5 = 0x00000000 > r6 = 0xc550dce8 r7 = 0xc3edaa00 > r8 = 0xc3ebbac0 > nfscl_nget() at nfscl_nget+0x308 > pc = 0xc09e1df0 lr = 0xc09da69c (ncl_readlinkrpc+0xf60) > sp = 0xdf29e9d8 fp = 0xdf29ea10 > r4 = 0xc550dce8 r5 = 0x00000000 > r6 = 0xc550dcf8 r7 = 0xdf29ecf8 > r8 = 0xdf29ec6c r9 = 0x00000000 > r10 = 0xdf29ed28 > ncl_readlinkrpc() at ncl_readlinkrpc+0xf60 > pc = 0xc09da69c lr = 0xc0bdae44 (VOP_MKDIR_APV+0x94) > sp = 0xdf29ec40 fp = 0xbffff620 > r4 = 0xc0c95c68 r5 = 0xdf29ec6c > r6 = 0x00000001 r7 = 0x00020284 > r8 = 0xffffff9c r9 = 0x00200800 > r10 = 0xc5f8c960 > VOP_MKDIR_APV() at VOP_MKDIR_APV+0x94 > pc = 0xc0bdae44 lr = 0xc0aca614 (kern_mkdirat+0x18c) > sp = 0xdf29ec50 fp = 0xbffff620 > r4 = 0xdf29ed28 r5 = 0xdf29ec90 > r6 = 0x00000000 > kern_mkdirat() at kern_mkdirat+0x18c > pc = 0xc0aca614 lr = 0xc0aca684 (kern_mkdir+0x24) > sp = 0xdf29ede0 fp = 0xbffff620 > r4 = 0x00020290 r5 = 0xc5f8c960 > r6 = 0x00000000 r7 = 0xc5f7f000 > r8 = 0x00000000 r10 = 0x00013640 > kern_mkdir() at kern_mkdir+0x24 > pc = 0xc0aca684 lr = 0xc0aca6a8 (sys_mkdir+0x1c) > sp = 0xdf29edf0 fp = 0xbffff620 > sys_mkdir() at sys_mkdir+0x1c > pc = 0xc0aca6a8 lr = 0xc0bc2884 (swi_handler+0x254) > sp = 0xdf29edf8 fp = 0xbffff620 > swi_handler() at swi_handler+0x254 > pc = 0xc0bc2884 lr = 0xc0bb2ed0 (swi_exit) > sp = 0xdf29ee60 fp = 0xbffff620 > r4 = 0x00020290 r5 = 0x2085e8e0 > r6 = 0x00020284 r7 = 0x00000088 > r8 = 0x00000001 > swi_exit() at swi_exit > pc = 0xc0bb2ed0 lr = 0xc0bb2ed0 (swi_exit) > sp = 0xdf29ee60 fp = 0xbffff620 > Unable to unwind further > > > Unfortunately dumping the kernel core also paniced. > db> dump > Physical memory: 507 MB > Dumping 74 MB: 71 67 63 > vm_fault(0xc4147000, 0, 1, 0) -> 0 > Fatal kernel mode data abort: 'Translation Fault (P)' > trapframe: 0xdf29e0b8 > FSR=00000017, FAR=00000014, spsr=a00000d3 > r0 =c0cd0f40, r1 =00000000, r2 =c5f8c960, r3 =00000004 > r4 =00000000, r5 =00000000, r6 =00000000, r7 =c3ead01c > r8 =c3ead000, r9 =c3e9e88c, r10=00000000, r11=0000000a > r12=600000d3, ssp=df29e108, slr=c0bb4e24, pc =c0a7d060 > > panic: Fatal abort > Uptime: 3d18h30m32s > Sleeping thread (tid 100119, pid 90295) owns a non-sleepable lock > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" >
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?1388627434.7506173.1414279273153.JavaMail.root>