From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965080AbaDJHIp (ORCPT ); Thu, 10 Apr 2014 03:08:45 -0400 Received: from nm42.bullet.mail.ne1.yahoo.com ([98.138.120.49]:48400 "HELO nm42.bullet.mail.ne1.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S934241AbaDJHIn convert rfc822-to-8bit (ORCPT ); Thu, 10 Apr 2014 03:08:43 -0400 X-Yahoo-Newman-Property: ymail-4 X-Yahoo-Newman-Id: 487272.52603.bm@omp1046.mail.bf1.yahoo.com DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:X-Rocket-MIMEInfo:X-Mailer:Message-ID:Date:From:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=hi42gMzT+b4CC87dg60EpBsl7TwUvo25KJAiumzIviGu9n+KZ+v/a2qdkg9q7jXznTcwJiTHR7DELu3jU6+WM0iXMrHzSGcajAMKzf4KFBwn1FafYagm1JMoPOXeygow7/lKbalJBIrXQ2OgB6PjYwfXGsAQDFSll3uWD0VT/mo=; X-YMail-OSG: 2v07odoVM1myTMVGlN73XXYFdo6Zui.c789MfF8K2aMZIt9 frD2KIm_8Q4gAPQQxkqFsz.NtNRnzh1Ge7jWdIbeH1VaoR.iY8EenLF0TjcO ZEvDk3BE7TbEWfl039q8RVMXcTB6O4_BrJ0nrVf5glfR5rsf3wNXEAZgfPwE TvbtNOuBb7ToVNGtZ3jehb4fObnBMxzE_fpOFHCBNI7f9ArdSj_JCnIPIiug AJR6iPrdGyZHD7tSFRH7UM2JQqr0EKKieXnevqiAGgrJM_lLZ6kHbFGCb_ok 9_XVPrQ8xr4msvSCRx.M7ytwDhBAGeoQr_QpC4cuOD53gap7YkL3.USXKhgL IVwYoQpSyZuIQpW4Go.d4WOKJ6yw3oyQ7g7gS6v9fDJd2Qe34Qs9XbDt6S5D LjucUFyllGif3TW_jGXbecFlsspSigGDjXmhe6M7bagRDGDeHDQV2Hw1XSnE 2juCsmmhLpUPCl91CcBgkdpGbpANWpslJn7ywlXne0hSjaHDuwflRJmbLY4P bXcRH8fHrRN48GUFNDY4KC2jVnmT3igN7PVxyMPczp.BCkI8xJqNf2Hm7b8M - X-Rocket-MIMEInfo: 002.001,IEhpIEdyZWcvQWxsLCANCiAgwqAgDQogVGhpcyBpcyBOYXJhc2ltaGFyYW8gd29ya2luZyBmb3IgYSBzL3djb21wYW55IEhDTFQuLiANCiAgwqAgDQogSSBhbSB3b3JraW5nIGEgaXNzdWUgYW5kDQogdGhlIGRlc2NyaXB0aW9uIGlzIGJlbG93OiANCiAgwqAgDQogc3lzdGVtIHN0b3BzIGJvb3RpbmcgYW5kDQogbmVlZHMgYSBzZXJpZXMgb2YgY29uc29sZSBpbnB1dHMgKHNwYWNlIGJhciBvciByZXR1cm4pIHRvDQogY29udGludWUgYm9vdGluZy4gRWFjaCBpbnB1dCBhZHZhbmNlcyB0aGUgcHJvY2VzcyBhIGwBMAEBAQE- X-Mailer: YahooMailClassic/481 YahooMailWebService/0.8.182.648 Message-ID: <1397113552.75117.YahooMailBasic@web160504.mail.bf1.yahoo.com> Date: Thu, 10 Apr 2014 00:05:52 -0700 (PDT) From: narasimharo bolisetti Subject: system hang To: "linux-kernel@vger.kernel.org" , "kernelnewbies@nl.linux.org" , "devel@linuxdriverproject.org" , "linux-serial@vger.kernel.org" , "linux-hotplug@vger.kernel.org" , "greg@kroah.com" , Narasimharao Bolisetti Cc: "nrbolisetti@gmail.com" , "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" , "linux-pci@vger.kernel.org" , "linux-usb@vger.kernel.org" In-Reply-To: <62C418AB752FEF4D931AB8E89E46539F02878DFC@chn-hclt-mbs06.HCLT.CORP.HCL.IN> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Greg/All,   This is Narasimharao working for a s/wcompany HCLT..   I am working a issue and the description is below:   system stops booting and needs a series of console inputs (space bar or return) to continue booting. Each input advances the process a little bit. Actually I am trying to upgrade the s/w from usb pendrive, part of this upgrade having multiple times we are disconnecting and connecting the usb pen drive.   system stops booting and needs a series of console inputs (space bar or return) to continue booting. Each input advances the process a little bit. I have tried to find the root cause for the issue but not get success, can you help me regarding to this what is the root cause and how i can fix this?   One more thing i observed that the space allocated for tty by 'tty_write_room' is suddenly consumed by more than 2k at the time of issue occurs and gradually consuming remaining memory and when reaches to zero upgrade completely hangs and when console inputs (space bar or return) to continue booting, Each input advances the process a little bit. This console i/p's creating some space for the same . Is this problem in tty? one more thing we observed that whenever we increase the logging then this problem happens regularly.   [   66.233676] EXT3-fs (sda14): using internal journal [   66.233691] EXT3-fs (sda14): mounted filesystem with ordered data mode                              [   76.822878] par.que...par_queue_user_receive: Freeze check =0 [   76.828711] par.que...par_queue_user_receive: <*> returned -ERESTARTSYS <*> event =-512 [   76.837241] par_ldisc_open:record is found for ttyS4 [   76.842766] par.que...par_queue_user_receive: Freeze check =0 [   76.848594] par.que...par_queue_user_receive: <*> returned -ERESTARTSYS <*> event =-512 [  101.781654] usb 1-1.3: USB disconnect, address 3 [  104.029178] usb 1-1.3: new high speed USB device using fsl-ehci and address 4 [  104.159085] scsi2 : usb-storage 1-1.3:1.0 [  105.163726] scsi 2:0:0:0: Direct-Access     Kingston DataTraveler 2.0 1.00 PQ: 0 ANSI: 2 [  105.173202] sd 2:0:0:0: Attached scsi generic sg1 type 0 [  105.173686] sd 2:0:0:0: [sdb] 4006912 512-byte logical blocks: (2.05 GB/1.91 GiB) [  105.174177] sd 2:0:0:0: [sdb] Write Protect is off [  105.174188] sd 2:0:0:0: [sdb] Mode Sense: 23 00 00 00 [  105.174197] sd 2:0:0:0: [sdb] Assuming drive cache: write through [  105.178804] sd 2:0:0:0: [sdb] Assuming drive cache: write through [  105.178825]  sdb: sdb1 [  105.295052] sd 2:0:0:0: [sdb] Assuming drive cache: write through [  105.301142] sd 2:0:0:0: [sdb] Attached SCSI removable disk                       - Hangs at this place and console i/p’s to continue booting.   I have tried with different sizes and different vendors pen drives but problem is the same and occurs at the same place.   Your valuable inputs and suggetions are helpful to fix this issue.   My kernel version is: 2.6.35.6-45.fc14.i686   Thanks in advance for helping and replying.     Regards, Narasimharao B           ::DISCLAIMER:: ---------------------------------------------------------------------------------------------------------------------------------------------------- The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. 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