I took the fio 2.11 release and applied patch 356014ff351c6eb69339652650af5f6af72e5c22 but it only created a different error: [New LWP 131047] [New LWP 131030] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Core was generated by `fio --name=test_job --ioengine=libaio --direct=1 --rw=write --io'. Program terminated with signal 11, Segmentation fault. #0 __flist_del (next=0x0, prev=0x0) at flist.h:86 86 next->prev = prev; (gdb) bt #0 __flist_del (next=0x0, prev=0x0) at flist.h:86 #1 flist_del_init (entry=0xd609c0) at flist.h:109 #2 flush_log (log=<optimized out>, do_append=<optimized out>) at iolog.c:989 #3 0x0000000000457a08 in finish_log (td=td@entry=0x7f4f0fb1f000, log=0x7f4f23e04ad0, trylock=1) at iolog.c:1011 #4 0x0000000000457be5 in __write_log (try=<optimized out>, log=<optimized out>, td=0x7f4f0fb1f000) at iolog.c:1309 #5 write_bandw_log (td=0x7f4f0fb1f000, try=<optimized out>, unit_log=<optimized out>) at iolog.c:1377 #6 0x0000000000457efc in td_writeout_logs (unit_logs=false, td=0x7f4f0fb1f000) at iolog.c:1440 #7 fio_writeout_logs (unit_logs=unit_logs@entry=false) at iolog.c:1461 #8 0x0000000000466a67 in helper_thread_main (data=0x7f4f23e04d90) at helper_thread.c:135 #9 0x00007f4f25a5edf5 in start_thread () from /lib64/libpthread.so.0 #10 0x00007f4f255881ad in clone () from /lib64/libc.so.6 Regards, Jeff -----Original Message----- From: fio-owner@xxxxxxxxxxxxxxx [mailto:fio-owner@xxxxxxxxxxxxxxx] On Behalf Of Jeff Furlong Sent: Monday, June 13, 2016 11:05 AM To: Jens Axboe <axboe@xxxxxxxxx>; Sitsofe Wheeler <sitsofe@xxxxxxxxx> Cc: fio@xxxxxxxxxxxxxxx; Jan Kara <jack@xxxxxxx> Subject: RE: fio signal 11 I used the same workload: # fio --name=test_job --ioengine=libaio --direct=1 --rw=write --iodepth=32 --size=100% --numjobs=1 --bs=1m --filename=/dev/nvme0n1 --group_reporting --write_bw_log=test_job --write_iops_log=test_job --write_lat_log=test_job --log_avg_msec=1000 --disable_lat=0 --disable_clat=0 --disable_slat=0 --runtime=1500s --time_based --ramp_time=5s --output=test_job For whatever reason, looks like gdb truncates the parameters. Regards, Jeff -----Original Message----- From: fio-owner@xxxxxxxxxxxxxxx [mailto:fio-owner@xxxxxxxxxxxxxxx] On Behalf Of Jens Axboe Sent: Monday, June 13, 2016 11:02 AM To: Jeff Furlong <jeff.furlong@xxxxxxxx>; Sitsofe Wheeler <sitsofe@xxxxxxxxx> Cc: fio@xxxxxxxxxxxxxxx; Jan Kara <jack@xxxxxxx> Subject: Re: fio signal 11 On 06/13/2016 11:58 AM, Jeff Furlong wrote: > I'd like to use the latest git version so that I can pickup patch 356014ff351c6eb69339652650af5f6af72e5c22 to fix the ramp time issue. > > I tried the latest git version fio-2.11-21-g2b762, but got a new issue: > > [New LWP 120298] > [New LWP 120281] > [Thread debugging using libthread_db enabled] Using host libthread_db > library "/lib64/libthread_db.so.1". > Core was generated by `fio --name=test_job --ioengine=libaio --direct=1 --rw=write --iodepth=32'. > Program terminated with signal 11, Segmentation fault. > #0 __add_log_sample (iolog=iolog@entry=0x7f8376222c30, val=2230, ddir=ddir@entry=DDIR_WRITE, bs=bs@entry=0, t=t@entry=1056000, > offset=offset@entry=0) at stat.c:2015 > 2015 s->val = val; > (gdb) bt > #0 __add_log_sample (iolog=iolog@entry=0x7f8376222c30, val=2230, ddir=ddir@entry=DDIR_WRITE, bs=bs@entry=0, t=t@entry=1056000, > offset=offset@entry=0) at stat.c:2015 > #1 0x0000000000422411 in __add_log_sample (offset=0, t=1056000, bs=0, ddir=DDIR_WRITE, val=<optimized out>, iolog=0x7f8376222c30) > at stat.c:2004 > #2 __add_stat_to_log (log_max=<optimized out>, elapsed=1056000, > ddir=DDIR_WRITE, iolog=0x7f8376222c30) at stat.c:2091 > #3 _add_stat_to_log (log_max=<optimized out>, elapsed=<optimized > out>, iolog=0x7f8376222c30) at stat.c:2103 > #4 add_log_sample (td=td@entry=0x7f8361f3d000, iolog=0x7f8376222c30, val=2230, ddir=ddir@entry=DDIR_WRITE, bs=1048576, > offset=offset@entry=0) at stat.c:2139 > #5 0x000000000042f45f in add_log_sample (offset=0, bs=<optimized out>, ddir=DDIR_WRITE, val=<optimized out>, iolog=<optimized out>, > td=0x7f8361f3d000) at stat.c:2357 > #6 add_iops_samples (t=0x7f835a4bae50, td=0x7f8361f3d000) at > stat.c:2362 > #7 calc_log_samples () at stat.c:2402 > #8 0x0000000000467508 in helper_thread_main (data=0x7f8376222d90) at > helper_thread.c:125 > #9 0x00007f8377e7cdf5 in start_thread () from /lib64/libpthread.so.0 > #10 0x00007f83779a61ad in clone () from /lib64/libc.so.6 > > Maybe I should try the ramp time patch only on 2.11 release? What did you run to cause this crash? Looks like only some of the arguments got shown. -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html Western Digital Corporation (and its subsidiaries) E-mail Confidentiality Notice & Disclaimer: This e-mail and any files transmitted with it may contain confidential or legally privileged information of WDC and/or its affiliates, and are intended solely for the use of the individual or entity to which they are addressed. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited. 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