Date: Wed, 29 Sep 2010 18:10:42 +0200 From: Attilio Rao <attilio@freebsd.org> To: Sergey Kandaurov <pluknet@gmail.com> Cc: freebsd-net@freebsd.org, Ryan Stone <rstone@sandvine.com>, FreeBSD Current <current@freebsd.org>, Ed Maste <emaste@sandvine.com> Subject: Re: [PATCH] Netdump for review and testing -- preliminary version Message-ID: <AANLkTi=C5mxKhWdZ12x4=ChKisoOLxcn5-v7iOGSHVAy@mail.gmail.com> In-Reply-To: <AANLkTinpvSS7%2B=QKyvOpMjPLaTKi%2BYueOi0dK1wzQTWZ@mail.gmail.com> References: <AANLkTikA5OUYD1A9pqCqVEZ5qk%2BVECq8x-fnRXnpp0KE@mail.gmail.com> <AANLkTinpvSS7%2B=QKyvOpMjPLaTKi%2BYueOi0dK1wzQTWZ@mail.gmail.com>
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2010/9/29 Sergey Kandaurov <pluknet@gmail.com>: > [just don't know what namely need to test, so] > > All made according to your instructions. > The only way I could trigger netdump was > to run its ddb command by hand. Neither > debug.kdb.enter nor debug.kdb.panic don't do it. You probabilly need to use KDB_UNATTENDED. > Some numbers and output (bit verbose > but again don't know what need to show here) > Entered through debug.kdb.panic, thus Panicstring. > db> netdump > > ----------------------------------- > netdump in progress. searching for server.. dumping to xx.xxx.xx.xx > (00:1a:64:d3:4f:20) > ----------------------------------- > Physical memory: 2026 MB > Dumping 1154 MB: 1139 1123 1107 1091 1075 1059 1043 1027 1011 995 979 > 963 947 931 915 899 883 867 851 835 819 803 787 771 755 739 723 707 > 691 675 659 643 627 611 595 579 563 547 531 515 499 483 467 451 435 > 419 403 387 371 355 339 323 307 291 275 259 243 227 211 195 179 163 > 147 131 115 99 83 67 51 35 19 3 > Dump complete > > netdump finished. > cancelling normal dump > > # ls -hl /home/fooserv/crash/ > total 1182930 > -rw-r--r-- =C2=A01 root =C2=A0wheel =C2=A0 404B Sep 29 12:05 info.fooserv= .0 > -rw-r--r-- =C2=A01 root =C2=A0wheel =C2=A0 1.1G Sep 29 12:05 vmcore.foose= rv.0 > > Dump from fooserv [xx.xxx.xx.xx] > =C2=A0Architecture: amd64 > =C2=A0Architecture version: 2 > =C2=A0Dump length: 1210687488B (1154 MB) > =C2=A0blocksize: 8192 > =C2=A0Dumptime: Wed Sep 29 11:55:30 2010 > =C2=A0Hostname: fooserv > =C2=A0Versionstring: FreeBSD 9.0-CURRENT #51: Wed Sep 29 07:18:24 UTC 201= 0 > =C2=A0 =C2=A0root@fooserv:/usr/obj/usr/src/sys/GENERIC > =C2=A0Panicstring: kdb_sysctl_panic > =C2=A0Header parity check: Pass > Dump complete > > I tried to netdump a bit later again, but it couldn't find server, which > runs though, and client traffic was seen on server-side (w/o reply). > db> netdump > > ----------------------------------- > netdump in progress. searching for server.. . . . . . . . . . . . > Failed to contact netdump server Could you compile the kernel with NETDUMP_CLIENT_DEBUG and retry? (Warning: the log may be huge, so you may be needing to log with serial lin= e) I will try to reproduce locally, if anything. Thanks, Attilio > > As for netdumpserv, > it misses #include <sys/cdefs.h> before __FBSDID(); > I happily tested it on 7.3-amd64. Yes, there are also other small style(9) nits that needs to be addressed in the netdumpserver as well. Thanks, Attilio --=20 Peace can only be achieved by understanding - A. Einstein
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