Date: Sun, 03 Jun 2018 21:14:50 +0200 From: Alexander Leidinger <Alexander@leidinger.net> To: Slawa Olhovchenkov <slw@zxy.spb.ru> Cc: Kirill Ponomarev <kp@krion.cc>, freebsd-current@freebsd.org Subject: Re: Deadlocks / hangs in ZFS Message-ID: <20180603211450.Horde.pI-Fom6S1tUcaHvTF4MUjin@webmail.leidinger.net> In-Reply-To: <20180528090201.Horde._E4JZcuEaZHfj_BNzWjci2O@webmail.leidinger.net> References: <20180522101749.Horde.Wxz9gSxx1xArxkYMQqTL0iZ@webmail.leidinger.net> <fa263af4-9bf7-88f8-8d23-21456daf7960@FreeBSD.org> <20180522122924.GC1954@zxy.spb.ru> <20180522161632.Horde.ROSnBoZixBoE9ZBGp5VBQgZ@webmail.leidinger.net> <20180522144055.GD1954@zxy.spb.ru> <20180527194159.v54ox3vlthpuvx4q@jo> <20180527220612.GK1926@zxy.spb.ru> <20180528090201.Horde._E4JZcuEaZHfj_BNzWjci2O@webmail.leidinger.net>
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[-- Attachment #1 --] Quoting Alexander Leidinger <Alexander@leidinger.net> (from Mon, 28 May 2018 09:02:01 +0200): > Quoting Slawa Olhovchenkov <slw@zxy.spb.ru> (from Mon, 28 May 2018 > 01:06:12 +0300): > >> On Sun, May 27, 2018 at 09:41:59PM +0200, Kirill Ponomarev wrote: >> >>> On 05/22, Slawa Olhovchenkov wrote: >>>> > It has been a while since I tried Karl's patch the last time, and I >>>> > stopped because it didn't apply to -current anymore at some point. >>>> > Will what is provided right now in the patch work on -current? >>>> >>>> I am mean yes, after s/vm_cnt.v_free_count/vm_free_count()/g >>>> I am don't know how to have two distinct patch (for stable and >>>> current) in one review. >>> >>> I'm experiencing these issues sporadically as well, would you mind >>> to publish this patch for fresh current? >> >> Week ago I am adopt and publish patch to fresh current and stable, is >> adopt need again? > > I applied the patch in the review yesterday to rev 333966, it > applied OK (with some fuzz). I will try to reproduce my issue with > the patch. The behavior changed (or the system was long enough in this state without me noticing it). I have a panic now: panic: deadlkres: possible deadlock detected for 0xfffff803766db580, blocked for 1803003 ticks I only have the textdump. Is nayone up to debug this? If yes, I switch to normal dumps, just tell me what I shall check for. db:0:kdb.enter.panic> run lockinfo db:1:lockinfo> show locks No such command; use "help" to list available commands db:1:lockinfo> show alllocks No such command; use "help" to list available commands db:1:lockinfo> show lockedvnods Locked vnodes db:0:kdb.enter.panic> show pcpu cpuid = 6 dynamic pcpu = 0xfffffe008f03e840 curthread = 0xfffff80370c82000: pid 0 tid 100218 "deadlkres" curpcb = 0xfffffe0116472cc0 fpcurthread = none idlethread = 0xfffff803700b9580: tid 100008 "idle: cpu6" curpmap = 0xffffffff80d28448 tssp = 0xffffffff80d96d90 commontssp = 0xffffffff80d96d90 rsp0 = 0xfffffe0116472cc0 gs32p = 0xffffffff80d9d9c8 ldt = 0xffffffff80d9da08 tss = 0xffffffff80d9d9f8 db:0:kdb.enter.panic> bt Tracing pid 0 tid 100218 td 0xfffff80370c82000 kdb_enter() at kdb_enter+0x3b/frame 0xfffffe0116472aa0 vpanic() at vpanic+0x1c0/frame 0xfffffe0116472b00 panic() at panic+0x43/frame 0xfffffe0116472b60 deadlkres() at deadlkres+0x3a6/frame 0xfffffe0116472bb0 fork_exit() at fork_exit+0x84/frame 0xfffffe0116472bf0 fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0116472bf0 --- trap 0, rip = 0, rsp = 0, rbp = 0 --- Bye, Alexander. -- http://www.Leidinger.net Alexander@Leidinger.net: PGP 0x8F31830F9F2772BF http://www.FreeBSD.org netchild@FreeBSD.org : PGP 0x8F31830F9F2772BF [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJbFD4qAAoJEKrxQhqFIICE8BEP/AnXcLRV4mup++4RTI/jk41O qDwZkqI/VwD/Pa0I25nfpzW93tuBOHbhFxqILfrwMhx5dKCCu6hoM3BzDZ9kxoVS KxKXFuQFM96M46aKoUeVi1hwSEZqTiI3z9mlWpAlqOvwFKYDARj7A5mOY7I2KFyN kokrTJ6NpY5sW4NtlegODEkVkoERn3VGY42vqS9BMvPpbW09dIQtiChxE6hUUMXG YlJMuw/M/m1q0b2wuQ+RQuMUvyQYgpwP9qrls33/BHd9T8quaO2vvWO5U3iNSPIg PnO0wvrSiVhhWNyKuuxQfqyQZD908p1er3q65VXZYhnar6KEL87hDy2kbG9CPFkd oXCRG60NyG7WLEuVLH4BuZHLcU3i2cE1fHIyx5FCxQzxfkdA59j61tJk2iyNV7vL WJ3fcAAxSXTeLclpttnTw6yMCL09C3WqKCbWxmoyyQg3w5ZyVVlkDKHf2BVy8Zeq 3YE17snuZHrrUMRLW6ubnLiCfiXDQtX2DW4Jg5CwTSFvOPjhxEYpgXU1hlnaIGFd xN0kkNlMN9p9CdktslUDZZHD/Nh9OnvXW0BCln7y6DUYbWSb+j7rRkCblYtIP1Br wwYGXl/vaRuVjMHqcv+bR39ga+8b+QPm6E87aC959aqxL97HlyqukCLSbCKmJ7+D MdZd1HObFJK2ltl5JKVF =d67T -----END PGP SIGNATURE-----help
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