Re: [Dovecot] crashes on 2.0.16
On Thu, 2011-12-22 at 09:22 +0100, Cor Bosman wrote: > > This also is not the kernel list, since updating to a kernel released in > > the 21st century Cor's issue has gone away, so this thread is now rather > > entirely pointless on the Dovecot list. So I'll my participation in > > Actually, it hasn't. For the last few days we've been trying to pinpoint the > problem by running half a dozen servers with different kernels and options. > This 'kernel released in the 20th century' we have this problem with is the > current stable kernel for debian. So instead of starting a distro war (and I > thought canon/nikon, mac/pc were bad), lets be a bit more constructive. > Plenty of people use the stable debian release. > Ahh OK, your previous message said it was resolved, did the traceback show anything? > It's happening on about half of our imap servers (20 or so), but on none of > our other debian servers (hundreds). So it's not so weird to suspect a > dovecot link. But it looks like it may be a driver issue on a specific range > of hardware we use. > maybe install a slackware or gentoo box and add it into the farm and see if same problem exists there as well, if so, clearly dovecot, if not, clearly debian, its why I still keep a RHEL box handy, it sits attached to the "dev" unit until I need it to assist to prove/disprove something. All the best. signature.asc Description: This is a digitally signed message part
Re: [Dovecot] crashes on 2.0.16
On Thu, Dec 22, 2011 at 09:22:07AM +0100, Cor Bosman wrote: [..] > Actually, it hasn't. For the last few days we've been trying to > pinpoint the problem by running half a dozen servers with different In your initial posting you mentioned this happens on a machine wich was updated from Lenny to Squeeze. Did you try a fresh install? Sometimes I had some kernel related troubles in case of updateting releases. [..] > Once we find the issue, i'll report back. Until then, this doesn't > look like a dovecot problem. Most likely it will be best to ask on a debian list. Dennis
Re: [Dovecot] crashes on 2.0.16
> This also is not the kernel list, since updating to a kernel released in > the 21st century Cor's issue has gone away, so this thread is now rather > entirely pointless on the Dovecot list. So I'll my participation in Actually, it hasn't. For the last few days we've been trying to pinpoint the problem by running half a dozen servers with different kernels and options. This 'kernel released in the 20th century' we have this problem with is the current stable kernel for debian. So instead of starting a distro war (and I thought canon/nikon, mac/pc were bad), lets be a bit more constructive. Plenty of people use the stable debian release. It's happening on about half of our imap servers (20 or so), but on none of our other debian servers (hundreds). So it's not so weird to suspect a dovecot link. But it looks like it may be a driver issue on a specific range of hardware we use. Once we find the issue, i'll report back. Until then, this doesn't look like a dovecot problem. Cor
Re: [Dovecot] crashes on 2.0.16
On 22.12.2011 08:52, Noel Butler wrote: > On Thu, 2011-12-22 at 08:42 +0100, Robert Schetterer wrote: > >> Am 22.12.2011 08:27, schrieb Noel Butler: >>> On Thu, 2011-12-22 at 08:08 +0100, Robert Schetterer wrote: >>> Am 22.12.2011 00:49, schrieb Christopher Stolzenberg: > 2011/12/22 Jim Knuth : >> am 22.12.11 00:15 schrieb Christopher Stolzenberg >> >> : >> >> Indeed; very many of us use Debian stable. Which kernel did you install that is 2.0.16-friendly, and was this from Debian stable's updates system? regards, Ron >>> >>> >>> Debian for production servers??? That sounds dangerous. >> >> >> sorry, but that`s absolutely bulls*it. *lol* >> Where have you read then THIS? > > My own experience! > > Reasons against Debian: > > - No LSB certification (Linux Standard Base) > - No hardware certification (IBM, Dell, HP ...) > - Incompatible with some Broadcom NICs > - Full of bugs > - Free Kernel (non-free firmware removed... lol) > - Obsolete kernel (incompatible with new hardware) > - Obsolete packages > - Only one year support for oldstable *lol* > - Long delay for security updates > > -- > Chris dont feed trolls >>> >>> >>> Why is it when someone disagrees with someone's opinion they are >>> labelled a troll, maybe because it hits a raw nerve huh? >>> I dunno, and frankly don't care, but you have no right to do so just >>> because you don't agree with Christophers statements. >>> >>> >>> >> >> Hi Noel. this has left the topic of the dovecot list, >> after all , everyone is free to use what he likes and what fits best to >> solute the tec problem/task he/she likes to solve >> these everlasting os discussions are leading to nirvana >> are heavy boring, doesnt help on fixing the asked tec problem >> >> > > > > Still, everyone is entitled to their opinion, including Christopher, > perhaps it was not the right place for his comment, but none the less he > made it, so he must feel that way, we should respect that without > placing labels on him. > This also is not the kernel list, since updating to a kernel released in > the 21st century Cor's issue has gone away, so this thread is now rather > entirely pointless on the Dovecot list. So I'll my participation in > this thread, since its nearly 6pm, and tonight we have lots of prawns > and lots and lots of beer and bourbon ;) jeppa no need to flame ever cheers ! > > Merry Christmas to those who celebrate it. celebrate ,is a good idea, anytime > > > > -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria
Re: [Dovecot] crashes on 2.0.16
On Thu, 2011-12-22 at 08:42 +0100, Robert Schetterer wrote: > Am 22.12.2011 08:27, schrieb Noel Butler: > > On Thu, 2011-12-22 at 08:08 +0100, Robert Schetterer wrote: > > > >> Am 22.12.2011 00:49, schrieb Christopher Stolzenberg: > >>> 2011/12/22 Jim Knuth : > am 22.12.11 00:15 schrieb Christopher Stolzenberg > > : > > > >> Indeed; very many of us use Debian stable. Which kernel did you > >> install > >> that is 2.0.16-friendly, and was this from Debian stable's updates > >> system? > >> > >> regards, Ron > > > > > > Debian for production servers??? That sounds dangerous. > > > sorry, but that`s absolutely bulls*it. *lol* > Where have you read then THIS? > >>> > >>> My own experience! > >>> > >>> Reasons against Debian: > >>> > >>> - No LSB certification (Linux Standard Base) > >>> - No hardware certification (IBM, Dell, HP ...) > >>> - Incompatible with some Broadcom NICs > >>> - Full of bugs > >>> - Free Kernel (non-free firmware removed... lol) > >>> - Obsolete kernel (incompatible with new hardware) > >>> - Obsolete packages > >>> - Only one year support for oldstable *lol* > >>> - Long delay for security updates > >>> > >>> -- > >>> Chris > >> > >> dont feed trolls > >> > > > > > > Why is it when someone disagrees with someone's opinion they are > > labelled a troll, maybe because it hits a raw nerve huh? > > I dunno, and frankly don't care, but you have no right to do so just > > because you don't agree with Christophers statements. > > > > > > > > Hi Noel. this has left the topic of the dovecot list, > after all , everyone is free to use what he likes and what fits best to > solute the tec problem/task he/she likes to solve > these everlasting os discussions are leading to nirvana > are heavy boring, doesnt help on fixing the asked tec problem > > Still, everyone is entitled to their opinion, including Christopher, perhaps it was not the right place for his comment, but none the less he made it, so he must feel that way, we should respect that without placing labels on him. This also is not the kernel list, since updating to a kernel released in the 21st century Cor's issue has gone away, so this thread is now rather entirely pointless on the Dovecot list. So I'll my participation in this thread, since its nearly 6pm, and tonight we have lots of prawns and lots and lots of beer and bourbon ;) Merry Christmas to those who celebrate it. <> signature.asc Description: This is a digitally signed message part
Re: [Dovecot] crashes on 2.0.16
Am 22.12.2011 08:27, schrieb Noel Butler: > On Thu, 2011-12-22 at 08:08 +0100, Robert Schetterer wrote: > >> Am 22.12.2011 00:49, schrieb Christopher Stolzenberg: >>> 2011/12/22 Jim Knuth : am 22.12.11 00:15 schrieb Christopher Stolzenberg : >> Indeed; very many of us use Debian stable. Which kernel did you install >> that is 2.0.16-friendly, and was this from Debian stable's updates >> system? >> >> regards, Ron > > > Debian for production servers??? That sounds dangerous. sorry, but that`s absolutely bulls*it. *lol* Where have you read then THIS? >>> >>> My own experience! >>> >>> Reasons against Debian: >>> >>> - No LSB certification (Linux Standard Base) >>> - No hardware certification (IBM, Dell, HP ...) >>> - Incompatible with some Broadcom NICs >>> - Full of bugs >>> - Free Kernel (non-free firmware removed... lol) >>> - Obsolete kernel (incompatible with new hardware) >>> - Obsolete packages >>> - Only one year support for oldstable *lol* >>> - Long delay for security updates >>> >>> -- >>> Chris >> >> dont feed trolls >> > > > Why is it when someone disagrees with someone's opinion they are > labelled a troll, maybe because it hits a raw nerve huh? > I dunno, and frankly don't care, but you have no right to do so just > because you don't agree with Christophers statements. > > > Hi Noel. this has left the topic of the dovecot list, after all , everyone is free to use what he likes and what fits best to solute the tec problem/task he/she likes to solve these everlasting os discussions are leading to nirvana are heavy boring, doesnt help on fixing the asked tec problem -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria
Re: [Dovecot] crashes on 2.0.16
On Thu, 2011-12-22 at 08:08 +0100, Robert Schetterer wrote: > Am 22.12.2011 00:49, schrieb Christopher Stolzenberg: > > 2011/12/22 Jim Knuth : > >> am 22.12.11 00:15 schrieb Christopher Stolzenberg > >> > >> : > >> > >> > Indeed; very many of us use Debian stable. Which kernel did you install > that is 2.0.16-friendly, and was this from Debian stable's updates > system? > > regards, Ron > >>> > >>> > >>> Debian for production servers??? That sounds dangerous. > >> > >> > >> sorry, but that`s absolutely bulls*it. *lol* > >> Where have you read then THIS? > > > > My own experience! > > > > Reasons against Debian: > > > > - No LSB certification (Linux Standard Base) > > - No hardware certification (IBM, Dell, HP ...) > > - Incompatible with some Broadcom NICs > > - Full of bugs > > - Free Kernel (non-free firmware removed... lol) > > - Obsolete kernel (incompatible with new hardware) > > - Obsolete packages > > - Only one year support for oldstable *lol* > > - Long delay for security updates > > > > -- > > Chris > > dont feed trolls > Why is it when someone disagrees with someone's opinion they are labelled a troll, maybe because it hits a raw nerve huh? I dunno, and frankly don't care, but you have no right to do so just because you don't agree with Christophers statements. signature.asc Description: This is a digitally signed message part
Re: [Dovecot] crashes on 2.0.16
Am 22.12.2011 00:49, schrieb Christopher Stolzenberg: > 2011/12/22 Jim Knuth : >> am 22.12.11 00:15 schrieb Christopher Stolzenberg >> >> : >> >> Indeed; very many of us use Debian stable. Which kernel did you install that is 2.0.16-friendly, and was this from Debian stable's updates system? regards, Ron >>> >>> >>> Debian for production servers??? That sounds dangerous. >> >> >> sorry, but that`s absolutely bulls*it. *lol* >> Where have you read then THIS? > > My own experience! > > Reasons against Debian: > > - No LSB certification (Linux Standard Base) > - No hardware certification (IBM, Dell, HP ...) > - Incompatible with some Broadcom NICs > - Full of bugs > - Free Kernel (non-free firmware removed... lol) > - Obsolete kernel (incompatible with new hardware) > - Obsolete packages > - Only one year support for oldstable *lol* > - Long delay for security updates > > -- > Chris dont feed trolls -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria
Re: [Dovecot] crashes on 2.0.16
Am 22.12.2011 00:15, schrieb Christopher Stolzenberg: > 2011/12/20 Ron Leach : >> On 20/12/2011 09:11, Cor Bosman wrote: >>> >>> I installed a newer kernel on these boxes, and it's fixed. Seems to be >>> a problem with the stock debian squeeze kernel. Not a dovecot issue, but >>> others with a stable squeeze box might see similar problems so good >>> to have it in the archive :) >> >> >> Indeed; very many of us use Debian stable. Which kernel did you install >> that is 2.0.16-friendly, and was this from Debian stable's updates system? >> >> regards, Ron > > Debian for production servers??? That sounds dangerous. nonsense, Debian and clones are widly used for massive big server Farms > > -- > Chris -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria
Re: [Dovecot] crashes on 2.0.16
On Mon, 19 Dec 2011, Cor Bosman wrote: # OS: Linux 2.6.32.36-xsserver x86_64 Debian 6.0.3 Are you sure you didn't roll your own kernel? Debian kernels I know don't use the ".36" suffix, but ship as 2.6.32-something and use their own internal version numbering. For example, I found this on packages.debian.org: linux-image-2.6.32-5-amd64 (2.6.32-38) According to changelog, this actually carries patches from 2.6.32.46, yet only shows in uname as 2.6.32-5-amd64. Also a friendly reminder for the question asked by Ron Leach: which kernel version did you install that appears to be Dovecot-friendlier? Would be very useful to have that in the archives as well. By the way, happy holidays to everyone ;-) -- Maarten
Re: [Dovecot] crashes on 2.0.16
2011/12/22 Jim Knuth : > am 22.12.11 00:15 schrieb Christopher Stolzenberg > > : > > >>> Indeed; very many of us use Debian stable. Which kernel did you install >>> that is 2.0.16-friendly, and was this from Debian stable's updates >>> system? >>> >>> regards, Ron >> >> >> Debian for production servers??? That sounds dangerous. > > > sorry, but that`s absolutely bulls*it. *lol* > Where have you read then THIS? My own experience! Reasons against Debian: - No LSB certification (Linux Standard Base) - No hardware certification (IBM, Dell, HP ...) - Incompatible with some Broadcom NICs - Full of bugs - Free Kernel (non-free firmware removed... lol) - Obsolete kernel (incompatible with new hardware) - Obsolete packages - Only one year support for oldstable *lol* - Long delay for security updates -- Chris
Re: [Dovecot] crashes on 2.0.16
am 22.12.11 00:15 schrieb Christopher Stolzenberg : Indeed; very many of us use Debian stable. Which kernel did you install that is 2.0.16-friendly, and was this from Debian stable's updates system? regards, Ron Debian for production servers??? That sounds dangerous. sorry, but that`s absolutely bulls*it. *lol* Where have you read then THIS? -- Chris -- Mit freundlichen Grüßen, with kind regards, Jim Knuth
Re: [Dovecot] crashes on 2.0.16
2011/12/20 Ron Leach : > On 20/12/2011 09:11, Cor Bosman wrote: >> >> I installed a newer kernel on these boxes, and it's fixed. Seems to be >> a problem with the stock debian squeeze kernel. Not a dovecot issue, but >> others with a stable squeeze box might see similar problems so good >> to have it in the archive :) > > > Indeed; very many of us use Debian stable. Which kernel did you install > that is 2.0.16-friendly, and was this from Debian stable's updates system? > > regards, Ron Debian for production servers??? That sounds dangerous. -- Chris
Re: [Dovecot] crashes on 2.0.16
On 19-12-11 4:13 AM, Noel Butler wrote: On Mon, 2011-12-19 at 02:32 +0100, Sven Hartge wrote: Noel Butler wrote: On Mon, 2011-12-19 at 00:32 +0100, Cor Bosman wrote: # 2.0.16: /usr/local/etc/dovecot/dovecot.conf # OS: Linux 2.6.32.36-xsserver x86_64 Debian 6.0.3 Have you tried using a modern kernel? that one is about 2 years old. Well, this _is_ the kernel from Debian Stable and based on the Long-Term-Release from the kernel maintainers. So what? It is not anything current, that the kernel dev team would waste their time on. The kernel developers actually do "waste their time" on the 2.6.32.x kernel. It's a long-term stable kernel, there are frequent releases on kernel.org (I admit, .36 is a bit long in the tooth, latest is .50, released about 2 weeks ago). Mike.
Re: [Dovecot] crashes on 2.0.16
On 20/12/2011 09:11, Cor Bosman wrote: I installed a newer kernel on these boxes, and it's fixed. Seems to be a problem with the stock debian squeeze kernel. Not a dovecot issue, but others with a stable squeeze box might see similar problems so good to have it in the archive :) Indeed; very many of us use Debian stable. Which kernel did you install that is 2.0.16-friendly, and was this from Debian stable's updates system? regards, Ron
Re: [Dovecot] crashes on 2.0.16
I installed a newer kernel on these boxes, and it's fixed. Seems to be a problem with the stock debian squeeze kernel. Not a dovecot issue, but others with a stable squeeze box might see similar problems so good to have it in the archive :) regards, Cor
Re: [Dovecot] crashes on 2.0.16
On 19.12.2011, at 1.32, Cor Bosman wrote: > Hey all, I upgraded some servers today from Debian Lenny to Debian Squeeze, > and after the upgrade I started getting dovecot crashes. I was on 2.0.13 but > got these there as well, and hoped upgrading to 2.0.16 would help. It didn't. > Anyone have an idea? > > Dec 18 23:32:21 userimap1 kernel: [263492.245536] imap[19665]: segfault at > 7f108efb7f60 ip 7f108ecd37e0 sp 7fff73c3d658 error 5 in > libc-2.11.2.so[7f108ec5d000+158000] gdb backtrace of the crash would be helpful: http://dovecot.org/bugreport.html > Dec 18 23:32:21 userimap1 kernel: [263492.245663] BUG: Bad page map in > process imap pte:0001 pmd:09767067 Looks more like a kernel bug though.
Re: [Dovecot] crashes on 2.0.16
On Mon, 2011-12-19 at 02:32 +0100, Sven Hartge wrote: > Noel Butler wrote: > > On Mon, 2011-12-19 at 00:32 +0100, Cor Bosman wrote: > > >> # 2.0.16: /usr/local/etc/dovecot/dovecot.conf > >> # OS: Linux 2.6.32.36-xsserver x86_64 Debian 6.0.3 > > > Have you tried using a modern kernel? that one is about 2 years old. > > Well, this _is_ the kernel from Debian Stable and based on the > Long-Term-Release from the kernel maintainers. So what? It is not anything current, that the kernel dev team would waste their time on. Please remember, there is a massive difference between the kernel maintainers, and the debian kernel package maintainers, do not confuse the two, because the later have nothing to do with the former. > > Besides, from the suffix i assume this may be a virtual server, so it > may be not possible for Cor to even change the kernel himself. > Given who Cor is, I'd be actually horrified if he was running any of his plethora of mail servers on a virtual server. hint: don't read too much into the uname value. signature.asc Description: This is a digitally signed message part
Re: [Dovecot] crashes on 2.0.16
Noel Butler wrote: > On Mon, 2011-12-19 at 00:32 +0100, Cor Bosman wrote: >> # 2.0.16: /usr/local/etc/dovecot/dovecot.conf >> # OS: Linux 2.6.32.36-xsserver x86_64 Debian 6.0.3 > Have you tried using a modern kernel? that one is about 2 years old. Well, this _is_ the kernel from Debian Stable and based on the Long-Term-Release from the kernel maintainers. Besides, from the suffix i assume this may be a virtual server, so it may be not possible for Cor to even change the kernel himself. Grüße, Sven. -- Sigmentation fault. Core dumped.
Re: [Dovecot] crashes on 2.0.16
Have you tried using a modern kernel? that one is about 2 years old. On Mon, 2011-12-19 at 00:32 +0100, Cor Bosman wrote: > Hey all, I upgraded some servers today from Debian Lenny to Debian Squeeze, > and after the upgrade I started getting dovecot crashes. I was on 2.0.13 but > got these there as well, and hoped upgrading to 2.0.16 would help. It didn't. > Anyone have an idea? > > Cor > # 2.0.16: /usr/local/etc/dovecot/dovecot.conf > # OS: Linux 2.6.32.36-xsserver x86_64 Debian 6.0.3 signature.asc Description: This is a digitally signed message part
