Re: "scsi: convert host_busy to atomic_t" series causes regressions for some hardware configurations

2015-09-07 Thread Sergio Callegari
around it) or something that may happen on any hardware as soon as an unfortunate combination of storage equipment is adopted. Thanks for the help so far, Best regards, Sergio On 30/08/2015 12:54, Sergio Callegari wrote: Hi Christoph, just checked. Unfortunately, the patch below, applied on

Re: "scsi: convert host_busy to atomic_t" series causes regressions for some hardware configurations

2015-08-30 Thread Sergio Callegari
Hi Christoph, just checked. Unfortunately, the patch below, applied on top of Linus' v3.17 (which I am using as a test kernel) *does not fix the issue*. Best regards, Sergio On 25/08/2015 13:00, Christoph Hellwig wrote: Hi Sergio, can you give the patch below a try? libata currently comp

Re: "scsi: convert host_busy to atomic_t" series causes regressions for some hardware configurations

2015-08-26 Thread Sergio Callegari
Sure, thanks! I'll test this weekend. Best, Sergio On 25/08/2015 13:00, Christoph Hellwig wrote: Hi Sergio, can you give the patch below a try? libata currently completes the SCSI command before freeing the internal command structure, which could lead to various races that mess with the ATA

"scsi: convert host_busy to atomic_t" series causes regressions for some hardware configurations

2015-08-24 Thread Sergio Callegari
silence. Best, Sergio On 20/08/2015 10:08, Christoph Hellwig wrote: Hi Sergio, On Tue, Aug 18, 2015 at 09:44:28AM +0200, Sergio Callegari wrote: Hi, I have bisected the issue down to [045065d8a300a37218c548e9aa7becd581c6a0e8] [SCSI] fix qemu boot hang problem Bisecting has been a painful j

Re: IDE Floppy support for IOMEGA Zip Drive broken in 3.16 -> 3.17 transition

2015-08-20 Thread Sergio Callegari
almost 7 days). Best, Sergio On 20/08/2015 10:08, Christoph Hellwig wrote: Hi Sergio, On Tue, Aug 18, 2015 at 09:44:28AM +0200, Sergio Callegari wrote: Hi, I have bisected the issue down to [045065d8a300a37218c548e9aa7becd581c6a0e8] [SCSI] fix qemu boot hang problem Bisecting has been a

Re: IDE Floppy support for IOMEGA Zip Drive broken in 3.16 -> 3.17 transition

2015-08-18 Thread Sergio Callegari
, Jun 25, 2015 at 08:58:58PM +, Sergio Callegari wrote: What has changed wrt IDE in 3.16->3.17 transition? Why is the issue present even when the drive is not used (unmounted)? How can I help diagnosing? Here's what went into ide in 3.17: $ git log -p v3.16..v3.17 dri

Re: Regression: commit 045065d breaks kernel on machine with atapi floppy: high IOWAIT, hung processes (patch exists)

2015-08-16 Thread Sergio Callegari
17:01, Sergio Callegari wrote: Seems that the issue also affects other systems with different configs: https://bbs.archlinux.org/viewtopic.php?id=189324 Possibly, the same bug reported in https://bugzilla.kernel.org/show_bug.cgi?id=87581 A tentative patch was submitted on LKML https

Re: Regression: commit 045065d breaks kernel on machine with atapi floppy: high IOWAIT, hung processes (bisected)

2015-08-16 Thread Sergio Callegari
: - If one of the two patches has already been accepted in recent kernels or is pending acceptance? - Which one among the two approaches (extending delay time or modifying spin locks in scsi_lib.c) is more appropriate for me to test? Best, Sergio On 16/08/2015 16:19, Sergio Callegari wrote

Regression: commit 045065d breaks kernel on machine with atapi floppy: high IOWAIT, hung processes (bisected)

2015-08-16 Thread Sergio Callegari
Hi, please keep me in CC in answers. I'd like to report that after commit [045065d8a300a37218c548e9aa7becd581c6a0e8] [SCSI] fix qemu boot hang problem the kernel is not usable on a machine with an IOMEGA Zip 100 ATAPI drive as in: Model=IOMEGA ZIP 100 ATAPI Floppy, FwRev=12.A, SerialNo= Co

Re: IDE Floppy support for IOMEGA Zip Drive broken in 3.16 -> 3.17 transition

2015-07-02 Thread Sergio Callegari
On 02/07/2015 18:11, Ondrej Zary wrote: You're probably using libata and not the old IDE layer. Just tested this one: Model=IOMEGA ZIP 100 ATAPI, FwRev=03.H, SerialNo= Config={ SpinMotCtl Removeable nonMagnetic } RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0 BuffType=unknown, B

IDE Floppy support for IOMEGA Zip Drive broken in 3.16 -> 3.17 transition

2015-06-25 Thread Sergio Callegari
Hi, I have an Iomega IDE Zip drive as in: /dev/sda: Model=IOMEGA ZIP 100 ATAPI Floppy, FwRev=12.A, SerialNo= Config={ SpinMotCtl Removeable nonMagnetic } RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0 BuffType=unknown, BuffSize=unknown, MaxMultSect=0 (maybe): CurCHS=0/0/0, Cur

Probable regression: extremely high IOWAIT on system with Iomega ZIP drive (Parallel ATA interface) after 3.16->3.17 kernel upgrade

2015-06-08 Thread Sergio Callegari
Hi, I am experiencing a weird issue on an AMD Phenom II system with an AsRock N68S motherboard (NVIDIA GeForce 7025 / nForce 630a chipset). The system has an Iomega Zip 100 drive attached via an IDE connector - not exactly recent hardware. Everything was working fine up to kernel 3.16.x. After a

Kernel panic on kernel 3.8.x, 3.9RC6 when closing bluetooth dun connection (regression from 3.7.x)

2013-04-08 Thread Sergio Callegari
seems easy to reproduce (I catched it on two different machines with different setups). So I hope this note can help haunting the regression anyway. Thanks for the attention, Sergio Callegari -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a me

Re: Kernel panic on stable kernel 3.8.2 when closing bluetooth dun connection

2013-03-22 Thread Sergio Callegari
In the end it may not be caused by bluetooth, but by ppp. Found bug reports on ubuntu indicating that 3.8.x panic on ppp disconnection. Unfortunately, I cannot try without bluetooth with my configuration. (when wired, phone does not use ppp, but appears as a wired network interface). Sergio -- T

Re: Kernel panic on stable kernel 3.8.2 when closing bluetooth dun connection

2013-03-21 Thread Sergio Callegari
On 20/03/2013 17:17, Greg KH wrote: Have you notified the linux bluetooth developers about this? Is this new in 3.8.2 and 3.8.1 or 3.8 works fine? thanks, greg k-h Hi, thanks for the advice. I have verified that the issue was introduced with 3.8.0 and is not due to stabilization patches in t

Kernel panic on stable kernel 3.8.2 when closing bluetooth dun connection

2013-03-20 Thread Sergio Callegari
ock, caps-lock keys start flashing and the system freezes. It is 100% repeatable. The ubuntu kernel, that is a 3.5.0 plus ubuntu tweaks, backports, etc does not panic. Thanks for the attention and best regards, Sergio Callegari -- To unsubscribe from this list: send the line "unsubsc

Stable kernel 3.8.3 appears to break displayport on intel gen4

2013-03-18 Thread Sergio Callegari
report anymore the external monitor when it is actually attached via displayport. Thanks for the attention and best regards, Sergio Callegari -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordo