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61. Re: [PATCH] Prevent netpoll hanging when link is down (score: 1): Author: Andi Kleen <ak@xxxxxxx>; Date: Mon, 11 Oct 2004 18:32:26 +0200; It won't because printk catches the case. -Andi; /archives/netdev/2004-10/msg01865.html (12,850 bytes)
62. Re: [PATCH] Prevent netpoll hanging when link is down (score: 1): Author: Matt Mackall <mpm@xxxxxxxxxxx>; Date: Mon, 11 Oct 2004 11:36:01 -0500; It's not recursion on printk that's a problem, it's recursion on -- Mathematics is the supreme nostalgia of our time.; /archives/netdev/2004-10/msg01866.html (13,163 bytes)
63. Re: [PATCH] Prevent netpoll hanging when link is down (score: 1): Author: Andi Kleen <ak@xxxxxxx>; Date: Mon, 11 Oct 2004 18:43:15 +0200; There is no recursion on poll because printk will never call into the low level console driver when the console sem is already taken. -Andi P.S.: I made the same mistake long ago, but akpm set me st; /archives/netdev/2004-10/msg01867.html (11,785 bytes)
64. Re: [PATCH] Prevent netpoll hanging when link is down (score: 1): Author: Matt Mackall <mpm@xxxxxxxxxxx>; Date: Mon, 11 Oct 2004 11:58:52 -0500; Ergh, you deleted the context. Again, imagine we're originally in console sem is not taken, because we're just doing routine network I/O. While in poll(), we take a private driver lock. Then for what; /archives/netdev/2004-10/msg01869.html (12,301 bytes)
65. Re: [PATCH] Prevent netpoll hanging when link is down (score: 1): Author: Andi Kleen <ak@xxxxxxx>; Date: Mon, 11 Oct 2004 19:41:12 +0200; You're right, in that case you could get a deadlock. -Andi; /archives/netdev/2004-10/msg01870.html (12,140 bytes)
66. Re: [PATCH] Prevent netpoll hanging when link is down (score: 1): Author: Colin Leroy <colin@xxxxxxxxxx>; Date: Mon, 11 Oct 2004 22:45:42 +0200; Hi, I tried replacing spin_lock by spin_trylock in poll() and a few other functions (and returning accordingly), but it didn't help. I'm beginning to think I won't be able to debug this one! ;) -- Co; /archives/netdev/2004-10/msg01871.html (12,025 bytes)
67. Re: [PATCH] Prevent netpoll hanging when link is down (score: 1): Author: Colin Leroy <colin@xxxxxxxxxx>; Date: Thu, 21 Oct 2004 18:36:10 +0200; Hi Eric, Ok, it tried... It doesn't help. I tried the wild way too: It didn't help either. I'll give a look to other net drivers, to see if they do stuff differently, but I fear that I won't find it; /archives/netdev/2004-10/msg02395.html (11,611 bytes)
68. Re: [PATCH] Prevent netpoll hanging when link is down (score: 1): Author: Eric Lemoine <eric.lemoine@xxxxxxxxx>; Date: Sun, 24 Oct 2004 17:22:13 +0200; Thanks for running this Colin. Unfortunately I can't figure out what's going on at this point. -- Eric; /archives/netdev/2004-10/msg02511.html (12,150 bytes)

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