Date: Mon, 25 Nov 2002 18:50:47 +0100 From: Philip Paeps <philip@paeps.cx> To: current@freebsd.org Subject: Re: I'm impressed, but ... Message-ID: <20021125175047.GA625@juno.home.paeps.cx> In-Reply-To: <20021125120956.GA616@juno.home.paeps.cx> References: <20021125004934.GA604@juno.home.paeps.cx> <20021125114536.A19537@alpha.develop.ferrari.net> <20021125120956.GA616@juno.home.paeps.cx>
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On 2002-11-25 13:09:56 (+0100), Philip Paeps <philip@paeps.cx> wrote:
> On 2002-11-25 11:45:36 (+0100), Robert Drehmel <robert@ferrari-electronic.de> wrote:
> > On Mon, Nov 25, 2002 at 01:49:34AM +0100, Philip Paeps wrote:
> > [reformatted]
> > > 2. This one's the most irritating. I use Mutt as my mailclient using
> > > Maildirs for storage. It occasionally happens that Mutt just 'hangs'
> > > reading a directory, and there's no way for me to kill it. Ps axl shows
> > > it as being in state Ds or Ds+ and blocked by ufs.
> >
> > do you use truss(1)?
>
> Frequently, but I hadn't thought about it in this case :-)
>
> Next time it just sits there, I'll try to find out what truss tells me. If
> nothing, I'll try to reproduce the problem running inside truss.
>
> I'll get with more info as soon as things die.
Mmm, truss doesn't give me anything particularly useful. The last few lines
when it hangs are:
| read(0x0,0xbfbfe19b,0x1) = 1 (0x1)
| write(1,0x80e1000,6) = 6 (0x6)
| write(1,0x80e1000,6) = 6 (0x6)
| stat("/etc/nsswitch.conf",0xbfbfd950) ERR#2 'No such file or directory'
| geteuid() = 1001 (0x3e9)
| stat("/etc/pwd.db",0xbfbfd860) = 0 (0x0)
| open("/etc/pwd.db",0x0,00) = 4 (0x4)
| fcntl(0x4,0x2,0x1) = 0 (0x0)
| read(0x4,0x8133a00,0x104) = 260 (0x104)
| lseek(4,0x5000,0) = 20480 (0x5000)
| read(0x4,0x8477000,0x1000) = 4096 (0x1000)
| lseek(4,0x4000,0) = 16384 (0x4000)
| read(0x4,0x8478000,0x1000) = 4096 (0x1000)
| lseek(4,0x6000,0) = 24576 (0x6000)
| read(0x4,0x8479000,0x1000) = 4096 (0x1000)
| lseek(4,0x7000,0) = 28672 (0x7000)
| read(0x4,0x847a000,0x1000) = 4096 (0x1000)
| ls
...and then it just sits there...
It doesn't even finish printing the line. Ps axl tells me it's waiting on
ufs, and there's no way to kill it, other than a reboot. When rebooting, it
tells me it gives up on one buffer, and then just stays hanging there.
Perhaps breaking into a debugger will provide some more useful information.
I'll try that next.
- Philip
--
Philip Paeps Please don't CC me, I am
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