All of lore.kernel.org
 help / color / mirror / Atom feed
From: David Mosberger <davidm@hpl.hp.com>
To: linux-ia64@vger.kernel.org
Subject: Re: [Linux-ia64] Bug in signal handling
Date: Mon, 03 Dec 2001 03:15:16 +0000	[thread overview]
Message-ID: <marc-linux-ia64-105590698805575@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-105590698805573@msgid-missing>

>>>>> On 02 Dec 2001 23:05:29 +0100, Andreas Schwab <schwab@suse.de> said:

  Andreas> Then send both SIGUSR1 and SIGUSR2 to the process from
  Andreas> another terminal.  If they arrive close enough then the
  Andreas> first signal handler will be interupted at GATE_ADDR by the
  Andreas> second handler.  But ia64_do_signal is again called with
  Andreas> in_syscall = 1, and it will call ia64_decrement_ip before
  Andreas> setting up the signal handler frame.  Thus when the second
  Andreas> signal returns then rt_sigreturn it will return to
  Andreas> GATE_ADDR - 16 and crashes.

I think I know what the problem is.  If I'm right, then, oddly enough,
I discovered the same bug just yesterday (while proof-reading the
book, nevertheless... ;-).

Anyhow, I'll look into it on Monday.

Thanks,

	--david


  reply	other threads:[~2001-12-03  3:15 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-12-02 22:05 [Linux-ia64] Bug in signal handling Andreas Schwab
2001-12-03  3:15 ` David Mosberger [this message]
2001-12-04 19:53 ` David Mosberger
2001-12-05  1:14 ` Richard Henderson
2001-12-05  2:15 ` David Mosberger

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=marc-linux-ia64-105590698805575@msgid-missing \
    --to=davidm@hpl.hp.com \
    --cc=linux-ia64@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.