- 13 Jun, 2017 40 commits
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Kyle Fortin authored
iscsiadm session login can fail with the following error: iscsiadm: Could not login to [iface: default, target: iqn.1986-03.com... iscsiadm: initiator reported error (9 - internal error) When /etc/iscsi/iscsid.conf sets node.session.cmds_max = 4096, it results in 64K-sized kmallocs per session. A system under fragmented slab pressure may not have any 64K objects available and fail iscsiadm session login. Even though memory objects of a smaller size are available, the large order allocation ends up failing. The kernel prints a warning and does dump_stack, like below: iscsid: page allocation failure: order:4, mode:0xc0d0 CPU: 0 PID: 2456 Comm: iscsid Not tainted 4.1.12-61.1.28.el6uek.x86_64 #2 Call Trace: [<ffffffff816c6e40>] dump_stack+0x63/0x83 [<ffffffff8118e58a>] warn_alloc_failed+0xea/0x140 [<ffffffff81191df9>] __alloc_pages_slowpath+0x409/0x760 [<ffffffff81192401>] __alloc_pages_nodemask+0x2b1/0x2d0 [<ffffffffa048f6c0>] ? dev_attr_host_ipaddress+0x20/0xffffffffffffc722 [<ffffffff811dc38f>] alloc_pages_current+0xaf/0x170 [<ffffffff81192581>] alloc_kmem_pages+0x31/0xd0 [<ffffffffa048f600>] ? iscsi_transport_group+0x20/0xffffffffffffc7e2 [<ffffffff811ad738>] kmalloc_order+0x18/0x50 [<ffffffff811ad7a4>] kmalloc_order_trace+0x34/0xe0 [<ffffffff8146ee30>] ? transport_remove_classdev+0x70/0x70 [<ffffffff811e843d>] __kmalloc+0x27d/0x2a0 [<ffffffff810c8cbd>] ? complete_all+0x4d/0x60 [<ffffffffa04af299>] iscsi_pool_init+0x69/0x160 [libiscsi] [<ffffffff81465d90>] ? device_initialize+0xb0/0xd0 [<ffffffffa04af510>] iscsi_session_setup+0x180/0x2f4 [libiscsi] [<ffffffffa04c5a60>] ? iscsi_max_lun+0x20/0xfffffffffffffa9e [iscsi_tcp] [<ffffffffa04c531f>] iscsi_sw_tcp_session_create+0xcf/0x150 [iscsi_tcp] [<ffffffffa04c5a60>] ? iscsi_max_lun+0x20/0xfffffffffffffa9e [iscsi_tcp] [<ffffffffa048a633>] iscsi_if_create_session+0x33/0xd0 [<ffffffffa04c5a60>] ? iscsi_max_lun+0x20/0xfffffffffffffa9e [iscsi_tcp] [<ffffffffa048abd8>] iscsi_if_recv_msg+0x508/0x8c0 [scsi_transport_iscsi] [<ffffffff811922eb>] ? __alloc_pages_nodemask+0x19b/0x2d0 [<ffffffff811e6d69>] ? __kmalloc_node_track_caller+0x209/0x2c0 [<ffffffffa048b00c>] iscsi_if_rx+0x7c/0x200 [scsi_transport_iscsi] [<ffffffff81623dc6>] netlink_unicast+0x126/0x1c0 [<ffffffff8162468c>] netlink_sendmsg+0x36c/0x400 [<ffffffff815d2fed>] sock_sendmsg+0x4d/0x60 [<ffffffff815d596a>] ___sys_sendmsg+0x30a/0x330 [<ffffffff811bc72c>] ? handle_pte_fault+0x20c/0x230 [<ffffffff811bc90c>] ? __handle_mm_fault+0x1bc/0x330 [<ffffffff811bcb32>] ? handle_mm_fault+0xb2/0x1a0 [<ffffffff815d5b99>] __sys_sendmsg+0x49/0x90 [<ffffffff815d5bf9>] SyS_sendmsg+0x19/0x20 [<ffffffff816cbb2e>] system_call_fastpath+0x12/0x71 Use kvzalloc for iscsi_pool in iscsi_pool_init. Signed-off-by:
Kyle Fortin <kyle.fortin@oracle.com> Tested-by:
Joseph Slember <joe.slember@oracle.com> Reviewed-by:
Lance Hartmann <lance.hartmann@oracle.com> Acked-by:
Lee Duncan <lduncan@suse.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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Kevin Barnett authored
Reviewed-by:
Scott Benesh <scott.benesh@microsemi.com> Reviewed-by:
Gerry Morong <gerry.morong@microsemi.com> Signed-off-by:
Kevin Barnett <kevin.barnett@microsemi.com> Signed-off-by:
Don Brace <don.brace@microsemi.com> Signed-off-by:
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Corentin Labbe authored
Instead of rewriting write/readq, use existing functions Reviewed-by:
Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by:
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Kevin Barnett authored
Add module parameters to disable heartbeat support and to disable shutting down the controller when a controller is taken offline. Reviewed-by:
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Kevin Barnett authored
Better initialization of linked list heads. Reviewed-by:
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Kevin Barnett authored
Display the RAID level via sysfs Reviewed-by:
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Kevin Barnett authored
- make all references to RAID bypass consistent throughout driver. Reviewed-by:
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Kevin Barnett authored
Improved formatting of information displayed when devices are added/removed from the system. Reviewed-by:
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Kevin Barnett authored
Increase the timeout on admin commands from 3 seconds to 60 seconds and added a check for controller crash in the loop where the driver polls for admin command completion. Reviewed-by:
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Kevin Barnett authored
enhance mapping of RAID path errors to Linux SCSI host error codes. Reviewed-by:
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Kevin Barnett authored
- Improve controller branding support. Reviewed-by:
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Kevin Barnett authored
improve support for taking controller offline. Reviewed-by:
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Kevin Barnett authored
- Improve handling of offline devices. Reviewed-by:
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Kevin Barnett authored
set the internal flag that causes I/O to be sent down the RAID path when the AIO path is disabled Reviewed-by:
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Kevin Barnett authored
add support for actions to take when controller goes offline. Reviewed-by:
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Kevin Barnett authored
make the queue depth for LVs the same as the maximum I/Os supported by the controller Reviewed-by:
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Kevin Barnett authored
constrain resource usage during kdump to avoid kdump failures Reviewed-by:
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Kevin Barnett authored
change return value for controller offline to be consistent with the rest of the driver. Reviewed-by:
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Kevin Barnett authored
add support for PTRAID devices Reviewed-by:
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Kevin Barnett authored
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Kevin Barnett authored
- improve some error messages. Reviewed-by:
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Kevin Barnett authored
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Kevin Barnett authored
- remove debug code that is no longer necessary. - Some WARN_ON checks were removed because the driver continues to function when the conditions are met. - remove a MACRO that is no longer used. - remove unnecessary multi-line statements. Reviewed-by: -
Kevin Barnett authored
correct the BMIC Identify Physical Device structure - missing 2 fields Reviewed-by:
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Kevin Barnett authored
eliminate redundant error message during initialization if the controller has crashed. Reviewed-by:
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Kevin Barnett authored
make all variable names for pointers to struct pci_dev consistent throughout the driver. Reviewed-by:
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Kevin Barnett authored
Add check for controller lockup during waits for synchronous controller commands. Reviewed-by:
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Kevin Barnett authored
add workaround for BDMA hardware bug that can cause hw to read up to 12 SGL elements (192 bytes) beyond the last element in the list. This fix avoids IOMMU violations Reviewed-by:
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Kevin Barnett authored
check for controller lockups Reviewed-by:
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Kevin Barnett authored
add support for ACPI S3 (suspend) and S4 (hibernate) system power states. Reviewed-by:
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Kevin Barnett authored
- Block all I/O targeted at LUN reset device. - Wait until all I/O targeted at LUN reset device has been consumed by the controller. - Issue LUN reset request. - Wait until all outstanding I/Os and LUN reset completion have been received by the host. - Return to OS results of LUN reset request. Reviewed-by:
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Kevin Barnett authored
Only register for controller events that driver supports cleanup event handling. Reviewed-by:
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Kevin Barnett authored
put in SIS mode during initialization. support kexec/kdump Reviewed-by:
Scott Teel <scott.teel@microsemi.com> Signed-off-by:
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Kevin Barnett authored
tell smartpqi controller to generate a checkpoint for rare lockup conditions. Reviewed-by:
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Kevin Barnett authored
add support for setting PCIe completion timeout. Reviewed-by:
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Kevin Barnett authored
minor cleanup of interrupt initialization and tear-down. Reviewed-by:
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Kevin Barnett authored
correct a problem caused by holding a spinlock during device deletion. Reviewed-by:
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Don Brace authored
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Don Brace authored
- simplify the driver - there are a lot of quirky racy conditions not handled - causes more aborts/resets when the number of commands to be aborted is large, such as in multi-path fail-overs. - has been turned off in our internal driver since 8/31/2015 Reviewed-by:
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Don Brace authored
- Block I/O requests with 0 length transfers which go down the ioaccel path. This causes lockup issues down in the basecode. - These issues have been fixed, but there are customers who are experiencing the issues when running older firmware. Reviewed-by:
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