search for: alkisg

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2008 Jun 14
2
PATCH: ipconfig may discard useful packets
Thank you Maximilian, this was much easier! I still have problems with my email setup, I haven't found the time to migrate my mailbox from Windows yet. And gmail (webmail) doesn't allow many customizations, so I'm also uploading the patch to http://users.sch.gr/alkisg/temp/0001-Signed-off-by.patch I'm sending a patch regarding the discard_packet() function, please consider it for inclusion. Signed-off-by: ????? ???????????? (alkisg at gmail.com) In main.c, function loop(), there's a call to packet_discard(). Unfortunately, there was a logic error in t...
2019 Oct 07
0
[klibc:master] nfsmount: Use kernel client's default value for timeo option
...requested. This option is passed to the kernel through struct nfs_mount_data rather than as a string, so we have to provide some value. The kernel client currently treats either 0 or UINT_MAX as requesting the default. nfs-utils passes 0, so do the same here. Reported-by: Alkis Georgopoulos <alkisg at gmail.com> References: https://lists.zytor.com/archives/klibc/2019-September/004233.html Signed-off-by: Ben Hutchings <ben at decadent.org.uk> --- usr/kinit/nfsmount/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/usr/kinit/nfsmount/main.c b/usr/kinit/nfsmou...
2008 Jun 14
5
PATCH: ipconfig may accept DHCPOFFER as DHCPACK
Hello, I found a bug in ipconfig and I'm sending a proposed patch for it. I've only seen it happen in 2 dhcp-server environments. Scenario: ipconfig sends a DHCP_DISCOVER, server A answers with a DHCP_OFFER, server B answers with a DHCP_OFFER, ipconfig sends a DHCP_REQUEST for server A, ipconfig accepts the DHCP_OFFER from server B instead of DHCP_ACK from server A. <== BUG The reason
2009 Jan 15
1
Bug#511959: klibc-utils: ipconfig times out when several machines boot at the very same time
Package: klibc-utils Version: 1.5.12-2 Severity: important Tags: patch (I'm using X-Debbugs-Cc so that the klibc list receives a copy directly. I'd be glad to be kept in Cc since I don't follow that list, thanks already.) Hi maks, hpa, Louis, and others, I've been experiencing for a while timeouts at DHCP-time in ipconfig when starting up several machines (say: 2 out of 4
2008 May 24
3
ipconfig and boot filename option
Hi, ipconfig is used in ltsp (thin clients) initramfs. Some of the users have to have 2 dhcp servers in ltsp environments, so they hit on this problem: The first dhcp request is from the pxe rom boot code. This code ignores any dhcp offers that don't have a filename field. So they always get the correct address, from the ltsp server. The second dhcp request (in initramfs) is done by
2019 Sep 21
0
nfsmount default timeo=7 causes timeouts on 100 Mbps
I managed to get to the bottom of this, and filed a bug report for NFS: https://bugzilla.kernel.org/show_bug.cgi?id=204939 Klibc nfsmount still a bug: it needs to NOT hardcode timeo=7. Either the NFS defaults should be used, which result in: timeo=600,rsize=1048576,wsize=1048576, or at least the kernel documented defaults, https://www.kernel.org/doc/Documentation/filesystems/nfs/nfsroot.txt
2012 Apr 17
1
tftpd-hpa: the tftpdir is ignored if --secure isn't used
If I omit --secure from the tftpd-hpa command line, I then need to e.g. `tftp -c get /var/lib/tftpboot/vmlinuz` instead of plain /vmlinuz, even though I pass /var/lib/tftpboot as the tftp dir in the tftpd-hpa command line. That essentially means that I'm exporting my whole /, which is clearly something I don't want to do. I basically want tftpd-hpa to serve files from /var/lib/tftpboot
2019 Sep 15
0
nfsmount default timeo=7 causes timeouts on 100 Mbps
I think I got it. Both nfsmount and `mount -t nfs` now default to rsize/wsize = 1 MB. By lowering this to 32K, all issues are gone, even with the default timeo=7. And nfsroot=xxx client responsiveness is a whole lot better. I think when nfsmount was initially written, the default rsize/wsize were much lower, which matched the timeo=7. Now they cause the lags/timeouts that I reported. So
2019 Sep 20
3
nfsmount default timeo=7 causes timeouts on 100 Mbps
In case anyone's interested, I followed up in the linux-nfs mailing list: https://marc.info/?l=linux-nfs&m=156887818618861&w=2 Thanks, Alkis On 9/15/19 10:51 AM, Alkis Georgopoulos wrote: > I think I got it. > > Both nfsmount and `mount -t nfs` now default to rsize/wsize = 1 MB. > By lowering this to 32K, all issues are gone, even with the default > timeo=7. And
2019 Sep 15
2
nfsmount default timeo=7 causes timeouts on 100 Mbps
I can't explain why 700 msecs aren't enough to avoid timeouts in 100 Mbps networks, but my tests verify it, so I'm writing to the list to request that you increase the default timeo to at least 30, or to 600 which is the default for `mount -t nfs`. How to reproduce: 1) Cabling: server <=> 100 Mbps switch <=> client Alternatively, one can use a 1000 Mbps switch and