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. E-mail transmission is not guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or may contain viruses in transmission. The e mail and its contents (with or without referred errors) shall therefore not attach any liability on the originator or HCL or its affiliates. Views or opinions, if any, presented in this email are solely those of the author and may not necessarily reflect the views or opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of authorized representative of HCL is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. Before opening any email and/or attachments, please check them for viruses and other defects. ---------------------------------------------------------------------------------------------------------------------------------------------------- -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
