New subject: [Bug 738536] iSCSI target fails with few clients under normal usage (OpenSuSE 11.4 and 12.1)

24 Dec 2011

      https://bugzilla.novell.com/show_bug.cgi?id=738536

https://bugzilla.novell.com/show_bug.cgi?id=738536#c0

           Summary: iSCSI target fails with few clients under normal usage
                    (OpenSuSE 11.4 and 12.1)
    Classification: openSUSE
           Product: openSUSE 12.1
           Version: Final
          Platform: x86-64
        OS/Version: openSUSE 11.4
            Status: NEW
          Severity: Critical
          Priority: P5 - None
         Component: Kernel
        AssignedTo: kernel-maintainers@forge.provo.novell.com
        ReportedBy: asabigue@fing.edu.uy
         QAContact: qa@suse.de
          Found By: ---
           Blocker: ---

User-Agent:       Mozilla/5.0 (X11; Linux x86_64; rv:9.0) Gecko/20100101
Firefox/9.0

(The bug exists on 11.4 and 12.1. I mention this as Operating System selector
does not include 12.1)

I have been experiencing problems with iSCSI for a while. Until 11.3,
everything was fine. 11.4 and 12.1 present problems.
We start with a very simple 12.1 OpenSuSE installation:

zypper install iscsiadm

Afterward, we take a 100MB file /varios/01/iSCSI/archivaldo and add it to the
ietd.conf

/editar ietd.conf

    Target iqn.2011-10.yyyy.xxxx:fila
    Lun 0 Path=/varios/01/iSCSI/archivaldo,Type=fileio

Afterward, we start iscsitarget,

    ~ # rciscsitarget start
    Starting iSCSI target service: FATAL: Error inserting crc32c_intel
(/lib/modules/2.6.37.6-0.7-desktop/kernel/arch/x86/crypto/crc32c-intel.ko): No
such device

The error can be removed from the init script, but is irrelevant.
The service works perfectly  the first time it is accessed from a client
machine. After we reboot 2 or 3 times the machine, we cannot access anymore to
the lun and get the following error on the /var/log/messages

    Dec  5 10:14:18 linux-akxl iscsitarget[3704]: Starting iSCSI target
service: FATAL: Error inserting crc32c_intel
(/lib/modules/3.1.0-1.2-desktop/kernel/arch/x86/crypto/crc32c-intel.ko): No
such device
    Dec  5 10:14:18 linux-akxl ietd: unable to lock pid file: Resource
temporarily unavailable
    Dec  5 10:14:18 linux-akxl iscsitarget[3704]: ..done
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.195710] iscsi_trgt: BUG at
/home/abuild/rpmbuild/BUILD/iscsitarget-1.4.20-svn/obj/desktop/iscsi.c:392
assert(req->tio)
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.208486] Pid: 2595, comm: istiod1
Not tainted 3.1.0-1.2-desktop #1
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.208492] Call Trace:
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.208556]  [<ffffffff810043fa>]
dump_trace+0xaa/0x2b0
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.208567]  [<ffffffff81582a4a>]
dump_stack+0x69/0x6f
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.208589]  [<ffffffffa0258c32>]
send_data_rsp+0xd2/0xe0 [iscsi_trgt]
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.208623]  [<ffffffffa0260f6f>]
disk_execute_cmnd.part.0+0x18f/0x1d0 [iscsi_trgt]
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.209372]  [<ffffffffa0260fc9>]
disk_execute_cmnd+0x19/0x20 [iscsi_trgt]
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.209443]  [<ffffffffa025be00>]
worker_thread+0x160/0x2c0 [iscsi_trgt]
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.209466]  [<ffffffff81075c8e>]
kthread+0x7e/0x90
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.209495]  [<ffffffff815a5474>]
kernel_thread_helper+0x4/0x10
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.210798] ------------[ cut here
]------------
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052] kernel BUG at
/home/abuild/rpmbuild/BUILD/iscsitarget-1.4.20-svn/obj/desktop/iscsi.c:392!
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052] invalid opcode: 0000 [#1]
PREEMPT SMP
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052] CPU 0
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052] Modules linked in:
ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp
libiscsi scsi_transport_iscsi iscsi_ibft iscsi_boot_sysfs md5 iscsi_trgt
ip6t_LOG xt_tcpudp xt_pkttype ipt_LOG xt_limit af_packet ip6t_REJECT
nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw xt_NOTRACK ipt_REJECT iptable_raw
iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_broadcast
nf_conntrack_ipv4 nf_defrag_ipv4 ip_tables xt_conntrack vboxsf nf_conntrack
ip6table_filter ip6_tables x_tables mperf dm_mod snd_intel8x0 ppdev
snd_ac97_codec ac97_bus snd_pcm parport_pc parport snd_timer joydev i2c_piix4
vboxguest snd soundcore e1000 snd_page_alloc sr_mod pcspkr sg battery button ac
cdrom autofs4 processor thermal_sys ata_generic
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052]
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052] Pid: 2595, comm: istiod1
Not tainted 3.1.0-1.2-desktop #1 innotek GmbH VirtualBox
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052] RIP:
0010:[<ffffffffa0258c32>]  [<ffffffffa0258c32>] send_data_rsp+0xd2/0xe0
[iscsi_trgt]
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052] RSP:
0018:ffff88001d931e40  EFLAGS: 00010286
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052] RAX: 0000000000000000
RBX: ffff88001d9fe198 RCX: 0000000000000000
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052] RDX: ffff88001d931fd8
RSI: ffff88001e36a480 RDI: ffff88001f8124c0
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052] RBP: 0000000000000000
R08: ffff88001d930000 R09: 0000000000204530
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052] R10: 0000000000000000
R11: 0000000000000001 R12: ffff88001d152dd8
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052] R13: ffff88001e36a480
R14: ffff88001e36a480 R15: ffff88001d152de8
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052] FS: 
00007f6ffa1c7700(0000) GS:ffff88001f800000(0000) knlGS:0000000000000000
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052] CS:  0010 DS: 0000 ES:
0000 CR0: 000000008005003b
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052] CR2: 00007fb2c7ebe000
CR3: 000000001e3a5000 CR4: 00000000000006f0
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052] DR0: 0000000000000000
DR1: 0000000000000000 DR2: 0000000000000000
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052] DR3: 0000000000000000
DR6: 00000000ffff0ff0 DR7: 0000000000000400
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052] Process istiod1 (pid:
2595, threadinfo ffff88001d930000, task ffff88001e36a480)
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052] Stack:
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052]  ffff88001d9fe198
ffff88001d9fe198 ffff88001db8c000 ffffffffa0260f6f
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052]  ffff88001d9fe198
ffffffffa0260fc9 ffff88001d152dc0 ffffffffa025be00
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052]  ffff88001d934380
ffff88001d9fe198 0000000000000000 ffff88001e36a480
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052] Call Trace:
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052]  [<ffffffffa0260f6f>]
disk_execute_cmnd.part.0+0x18f/0x1d0 [iscsi_trgt]
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052]  [<ffffffffa0260fc9>]
disk_execute_cmnd+0x19/0x20 [iscsi_trgt]
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052]  [<ffffffffa025be00>]
worker_thread+0x160/0x2c0 [iscsi_trgt]
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052]  [<ffffffff81075c8e>]
kthread+0x7e/0x90
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052]  [<ffffffff815a5474>]
kernel_thread_helper+0x4/0x10
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052] Code: e9 64 fd ff ff 48
c7 c1 99 48 26 a0 ba 88 01 00 00 48 c7 c6 b8 51 26 a0 48 c7 c7 00 52 26 a0 31
c0 e8 b8 c6 32 e1 e8 af 9d 32 e1 <0f> 0b 66 66 66 2e 0f 1f 84 00 00 00 00 00 41
56 48 85 ff 41 55
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052] RIP  [<ffffffffa0258c32>]
send_data_rsp+0xd2/0xe0 [iscsi_trgt]
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.211052]  RSP <ffff88001d931e40>
    Dec  5 10:26:01 linux-akxl kernel: [ 2640.323718] ---[ end trace
71cece1753d1251d ]---
    Dec  5 10:26:43 linux-akxl kernel: [ 2682.069516] iscsi_trgt: Abort Task
(01) issued on tid:1 lun:0 by sid:1407374904328704 (Function Complete)

Reproducible: Always

Steps to Reproduce:
1.Connect a iSCSI initiator to the target
2.Reboot the initiator computer 2 or 3 times
3.First, it will not be able to connect. After a while, the error in the kernel
apairs

This is important in order to fix the problem before 11.3 goes out of
maintenance

happy holidays!

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[Bug 738536] New: iSCSI target fails with few clients under normal usage (OpenSuSE 11.4 and 12.1)

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