Date: Sat, 18 Jul 2009 00:33:13 +0400 From: Anonymous <swell.k@gmail.com> To: Rick Macklem <rmacklem@uoguelph.ca> Cc: Kostik Belousov <kostikbel@gmail.com>, Rick Macklem <rmacklem@freebsd.org>, freebsd-current@freebsd.org Subject: Re: [newnfs/client] SIGINFO aborts transfer and produces `permission denied' Message-ID: <86ocrjyrqu.fsf@gmail.com> References: <86zlb45px8.fsf@gmail.com> <Pine.GSO.4.63.0907162013570.9851@muncher.cs.uoguelph.ca> <20090717081105.GQ55190@deviant.kiev.zoral.com.ua> <Pine.GSO.4.63.0907171016450.28363@muncher.cs.uoguelph.ca>
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Rick Macklem <rmacklem@uoguelph.ca> writes: > On Fri, 17 Jul 2009, Kostik Belousov wrote: > >> On Thu, Jul 16, 2009 at 08:15:29PM -0400, Rick Macklem wrote: >>> >>> >>> On Fri, 17 Jul 2009, Anonymous wrote: >>> >>>> Let's populate /blah with 50Mb files and send SIGINFO to cp(1) process >>>> while >>>> copying it over nfsv3. >>>> >>>> # uname -vm >>>> FreeBSD 8.0-BETA1 #0: Sat Jul 4 03:55:14 UTC 2009 >>>> root@almeida.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC i386 >>>> > Ah, my commit related to blocking signals (cloned from the regular > nfs client) didn't go into head until Jul 12 (r195642), so I think > this might be fixed by that. > > If you still see it when running a post-r195642 kernel, please let > me know, rick Yep, I can reproduce it as easily on 8.0-BETA2 snapshot under qemu # uname -vm FreeBSD 8.0-BETA2 #0: Wed Jul 15 23:25:30 UTC 2009 root@almeida.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC i386 Here is ktrace for following ftp://ftp.lissyara.su/users/Guest/newnfs/siginfo_ktrace.out.bz2 ftp://ftp.lissyara.su/users/Guest/newnfs/siginfo_ktrace.txt.bz2 (kdump -Rr) # ktrace -i cp -R /mnt /aaa load: 1.09 cmd: cp 996 [runnable] 1.25r 0.00u 0.51s 3% 880k /mnt/foo_1 -> /aaa/foo_1 16% load: 1.09 cmd: cp 996 [newnfsreq] 5.43r 0.00u 2.06s 13% 880k cp: /mnt/foo_1: Permission denied /mnt/foo_2 -> /aaa/foo_2 0% load: 1.16 cmd: cp 996 [runnable] 8.61r 0.00u 3.24s 17% 904k cp: /mnt/foo_2: Permission denied /mnt/foo_3 -> /aaa/foo_3 0% load: 1.16 cmd: cp 996 [runnable] 10.98r 0.00u 4.14s 23% 904k cp: /mnt/foo_3: Permission denied I'm not sure if it's useful.
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