Note: This bug is displayed in read-only format because
the product is no longer active in Red Hat Bugzilla.
RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
---Problem Description---
Kdump kernel hangs while loading megaraid_sas.
---Serial console fragment---
Loading megaraid_sas.ko module
megasas: INIT adapter done
DRHD: handling fault status reg 502
INTR-REMAP: Request device [[04:00.0] fault index 44
INTR-REMAP:[fault reason 34] Present field in the IRTE entry is clear
DRHD: handling fault status reg 602
INTR-REMAP: Request device [[04:00.0] fault index 45
INTR-REMAP:[fault reason 34] Present field in the IRTE entry is clear
INFO: task insmod:259 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
INFO: task insmod:259 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
#####after this the kdump kernel hangs.
---uname output---
Linux mx3850x5.xx.xxx.xxx 2.6.32-118.el6.x86_64 #1 SMP Tue Feb 22 11:15:55 EST 2011 x86_64 x86_64
x86_64 GNU/Linux
Machine Type = X3850-X5
system memory = 256GB
---Debugger---
A debugger is not configured
---Steps to Reproduce---
1>Install RHEL6.1alpha x64
2>Boot the system with default kernel parameters with crashkernel=auto
3>configure the kdump
4>trigger the kdump 'echo c > /proc/sysrq-trigger'
kdump kernel loads but hangs while loading megaraid_sas.
My system is running with the latest firmware.
FYI,
---dmidecode output----
BIOS Information
Vendor: IBM Corp.
Version: -[G0E140AUS-1.40]-
Release Date: 12/14/2010
I also encountered the same issue on x3620m3 machine while loading megaraid_sas module after
triggering kdump. The hanging point is also same. Its hanging at below point.
Loading megaraid_sas.ko module
megasas: 00.00.05.29-RH1 Tue. Dec. 7 17:00:00 PDT 2010
megasas: 0x1000:0x0073:0x1014:0x03b1: bus 21:slot 0:func 0
megaraid_sas 0000:15:00.0: PCI INT A -> GSI 32 (level, low) -> IRQ 32
megasas: Waiting for FW to come to ready state
megasas: FW now in Ready state
megasas_init_mfi: fw_support_ieee=67108864
megasas: INIT adapter done
DRHD: handling fault status reg 402
INTR-REMAP: Request device [[10:00.3] fault index 87
INTR-REMAP:[fault reason 34] Present field in the IRTE entry is clear
DRHD: handling fault status reg 502
INTR-REMAP: Request device [[10:00.3] fault index 88
INTR-REMAP:[fault reason 34] Present field in the IRTE entry is clear
Below is the RAID controller information for both platforms where this issue is coming:-
1) x3850X5 - 09:00.0 RAID bus controller: LSI Logic / Symbios Logic LSI MegaSAS 9260 (rev 03).
2) x3620m3 - 15:00.0 RAID bus controller: LSI Logic / Symbios Logic MegaRAID SAS 9240 (rev 02).