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- TCP-Group Digest Sun, 16 Sep 90 Volume 90 : Issue 140
-
- Today's Topics:
- NOS 900828 failure (2 msgs)
-
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-
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- (by FTP only) from UCSD.Edu in directory "mailarchives".
- ----------------------------------------------------------------------
-
- Date: Sat, 15 Sep 90 15:54:46 UTC
- From: karn@ka9q.bellcore.com (Phil Karn)
- Subject: NOS 900828 failure
- To: dlf@phx.mcd.mot.com, tcp-group@ucsd.edu
-
- Dave,
-
- If you can help me track down where a stack is getting overflowed, then
- I can bump up the allocation. This will hopefully stop your problem.
-
- Phil
-
- ------------------------------
-
- Date: Sat, 15 Sep 90 10:56:51 MST
- From: dlf@phx.mcd.mot.com (Dave Fritsche)
- Subject: NOS 900828 failure
- To: karn@ka9q.bellcore.com (Phil Karn)
-
- > If you can help me track down where a stack is getting overflowed, then
- > I can bump up the allocation. This will hopefully stop your problem.
-
- I'm trying to keep an eye on the stack sizes here every time I sit down
- at the machine. It's been running ever since I reported the problem
- (approx 50 hours). Here's what I currently have:
-
- heap size 163104 avail 67280 (41%) morecores 137 coreleft 132008
- allocs 138048 frees 137346 (diff 702) alloc fails 0 invalid frees 0
- interrupts-off calls to malloc 0 free 0
- garbage collections yellow 0 red 0
- intqlen 5 ibufsize 2048 ibuffail 196
- ^^^^^^^^^^^^
- I'm currently wondering about the significance of the "ibuffail" above?
-
- Stack 55f2 max intstk 56
- SP stksize maxstk name
- 5f0a01ba 256 122 Echo listener
- 5e0701dc 256 49 asy tx
- 5f3001c2 256 140 Discard listener
- 5f5901b8 256 123 Telnet listener
- 593f03e4 512 211 killer
- 5f8201c2 256 122 FTP listener
- 5fac01ba 256 105 SMTP listener
- 5ea801d2 256 95 AX25 listener
- 5fd501c2 256 105 Finger listener
- 5fff0134 256 195 Remote listener
- 5ec901ca 256 104 NETROM listener
- 5ac101c4 250 110 keyboard
- 5ee901c0 256 106 TTYlink listener
- 71060e10 2048 377 SMTP server
- 598007da 1024 689 timer
- 58cb0144 250 131 display
- 591f01c0 256 72 asy rx
- 5a000be0 1536 470 network
- 55f21f22 0 0 cmdintrp
-
- The only thing I observe that is getting a little tight, might be the
- "Remote listener". I currently have a *long* netrom path, SMTP in
- progress with w5tyf. This session has been in progress for 2 days:
-
- Local: 44.124.11.20:25 Remote: 44.30.2.1:1025 State: Established
- Init seq Unack Next Resent CWind Thrsh Wind MSS Queue Total
- Send: 92880000 9288003e 92880046 204 88 88 88 88 8 61
- Recv: 7df40000 7df4003c 84 88 0 59
- Backoff 10 Retrying Timer running (418054175/420005850 ms) SRTT 102641 ms
- Mean dev 153678 ms
-
- Looks like my system isn't going to retry that session again for another
- 4.5 days (back to the manual 'tcp kicks'). Considering the totals haven't
- changed in so long, I would imagine his system went down and that session
- is really dead.
-
- SCC status:
- Ch Iface Sent Rcvd Error Space Overr Rxints Txints Exints Spints
- 0 r11 326 37501 49595 196 0 3038442 9886 1236964 49966
-
- asy status:
- s01: [trig char 0xc0]
- RX: int 2058094 chr 2058095 ovrn 4 hiwat 2
- TX: int 74127 chr 74122 sndq 0 CTS int 0
-
- Maybe this snapshot of what's going on here after running for a couple
- of days will be of some help. Unfortunately, when the crash occurred,
- I couldn't get a reasonable 'ps' display. Guess for debugging purposes,
- it'd be nice to have a way to 'dump' a current snapshot of the systems
- parameters to a file, or maybe just redirecting the stdout to a file
- (like: ps >ps.dmp). I could set a timer then to just periodically dump
- snapshots to a file for a post-mortem analysis. Oh well, there's already
- enough bells and whistles to debug.
-
- 73 . . . Dave Fritsche (wb8zxu)
- dlf@phx.mcd.mot.com
-
- ------------------------------
-
- End of TCP-Group Digest
- ******************************
-