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Thread: Serial 8250: too much work for irq18

  1. #1

    Exclamation Serial 8250: too much work for irq18

    Hi
    Just installed openSUSE 11.0 on my PC. It seem to be working fine but on checking the messages shown at boot time, I found out that the message "Serial 8250: too much work for irq18" is shown repeatedly many times.

    This was not the case when openSUSE 10.3 was running on my PC.

    The only change I have made to the system is add a new SATA 320 GB HDD.

    Please help...

    Regards,

    Yogesh M

  2. #2
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    Thumbs up Re: Serial 8250: too much work for irq18

    I suppose this is a hardware-related post.

    Apparently irq 18 concerns the SATA controller.

    Go through your motherboard manual and see if you need to change any jumper settings to support larger HDDs.

    I don't think this is a major problem, unless you have future problems with detection of removable/USB devices etc.

  3. #3
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    Default Re: Serial 8250: too much work for irq18

    You may have some sort of IRQ conflict. If you do not need the serial port on your mobo, disable it at the BIOS setup.

  4. #4

    Post Re: Serial 8250: too much work for irq18

    First of all thanks for replying, you guys are really quick

    Here is some more information about my PC:
    The motherboard is Intel D865GBF. It supports SATA drives (1st generation) though there is no word in the manual regarding maximum supported size of the disk. I've two disks; first is the older one (Seagate IDE ATA 80 GB, sda in openSUSE) and the other is the new WD SATA 320 GB drive (Model WD3200AAJS supporting 2nd gen. SATA, sdb in openSUSE). The drive can automatically adjust to SATA 1st gen. spec. and is working fine without any problem, though a jumper setting exist to explicitly restrict the drive to SATA 1st gen.
    Lastly, I'm dual booting with Windows XP. Both OSs are installed on the new drive which, obviously, is the one set-up as boot drive in the bios.

    Will post if I find anything useful in the bios settings when I get home later today.

    Regards,

    Yogesh M

    EDIT: I've some issues with USB drives (Windows/Linux), will give details after a bit more testing at home.

  5. #5
    coureyv NNTP User

    Default Re: Serial 8250: too much work for irq18

    Try on boot to add

    irqpoll (care with azerty keyboard)

    in the line for the parameters of boot

  6. #6

    Default Re: Serial 8250: too much work for irq18

    I've now disabled Serial and Parallel ports in bios, but to no help.
    I want to post the contents of my boot log for you but I am unable to attach it, can soneone help in this also?

  7. #7
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    Default Re: Serial 8250: too much work for irq18

    On Mon, 07 Jul 2008 18:16:04 GMT
    yogeshm 007 <yogeshm_007@no-mx.forums.opensuse.org> wrote:

    >
    > I've now disabled Serial and Parallel ports in bios, but to no help.
    > I want to post the contents of my boot log for you but I am unable to
    > attach it, can soneone help in this also?
    >
    >

    Hi
    If your ISP provides you a webpage you can post the boot.log file there
    as txt, you just need to upload it via ftp;

    e.g here is one I posted for my xorg.conf
    http://www.muppetwifi.homeunix.net/n..._conf_sled.txt

    --
    Cheers Malcolm (Linux Counter #276890)
    SLED 10.0 SP2 x86_64 Kernel 2.6.16.60-0.23-smp
    up 21:29, 1 user, load average: 0.29, 0.34, 0.33
    GPU GeForce 8600 GTS Silent - Driver Version: 173.14.09


  8. #8
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    Default Re: Serial 8250: too much work for irq18

    Use lsmod to check if you have the serial module loaded. If so and you are not using it, stop it from loading. Not sure why you have it at all, it isn't loaded on mine.

  9. #9

    Default Re: Serial 8250: too much work for irq18

    Here is the link to boot-log

  10. #10

    Question Re: Serial 8250: too much work for irq18

    Hi,

    I'm possibly having a problem which might be related to the earlier one in this thread.

    I've noticed that sometimes when I run applications they get run but remain non-responsive. When I checked it through System Monitor (KDE4) and top I found that that process was in "disk sleep" state.

    One such example:


    Code:
    linux-sm3q:/proc/3450 # cat status
    Name:   assistant
    State:  D (disk sleep)
    Tgid:   3450
    Pid:    3450
    PPid:   3366
    TracerPid:      0
    Uid:    1000    1000    1000    1000
    Gid:    100     100     100     100
    FDSize: 32
    Groups: 16 33 100
    VmPeak:    48340 kB
    VmSize:    48340 kB
    VmLck:         0 kB
    VmHWM:     14456 kB
    VmRSS:     14456 kB
    VmData:    18032 kB
    VmStk:        84 kB
    VmExe:       584 kB
    VmLib:     26432 kB
    VmPTE:        80 kB
    Threads:        1
    SigQ:   0/4089
    SigPnd: 0000000000000000
    ShdPnd: 0000000000000000
    SigBlk: fffffffe00000000
    SigIgn: 0000000000001000
    SigCgt: 0000000180010000
    CapInh: 0000000000000000
    CapPrm: 0000000000000000
    CapEff: 0000000000000000
    voluntary_ctxt_switches:        2
    nonvoluntary_ctxt_switches:     147
    Here is relevant (may be) portion of sys log

    Code:
    Jul 17 21:38:15 linux-sm3q kernel: ------------[ cut here ]------------
    Jul 17 21:38:15 linux-sm3q kernel: kernel BUG at fs/reiserfs/journal.c:1036!
    Jul 17 21:38:15 linux-sm3q kernel: invalid opcode: 0000 [#1] SMP 
    Jul 17 21:38:15 linux-sm3q kernel: last sysfs file: /sys/devices/system/cpu/cpu1/online
    Jul 17 21:38:15 linux-sm3q kernel: Modules linked in: ip6t_LOG xt_tcpudp xt_pkttype xt_physdev ipt_LOG xt_limit bridge bnep ip6t_REJECT nf_conntrack_ipv6 ipt_REJECT xt_state iptable_mangle iptable_nat nf_nat iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_ipv4 nf_conntrack ip_tables ip6table_filter ip6_tables x_tables snd_pcm_oss snd_mixer_oss ipv6 snd_seq snd_seq_device microcode firmware_class binfmt_misc fuse loop dm_mod rfcomm l2cap snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm snd_timer rtc_cmos snd rtc_core soundcore iTCO_wdt rtc_lib sr_mod snd_page_alloc iTCO_vendor_support sg i2c_i801 cdrom nvidia(P) tulip i2c_core hci_usb btusb intel_agp button agpgart shpchp bluetooth pci_hotplug usbhid hid ff_memless uhci_hcd ehci_hcd sd_mod usbcore edd fan thermal processor reiserfs ata_piix libata scsi_mod dock [last unloaded: speedstep_lib]
    Jul 17 21:38:15 linux-sm3q kernel: 
    Jul 17 21:38:15 linux-sm3q kernel: Pid: 3447, comm: assistant Tainted: P        N (2.6.25.5-1.1-pae #1)
    Jul 17 21:38:15 linux-sm3q kernel: EIP: 0060:[<e1604edc>] EFLAGS: 00010246 CPU: 0
    Jul 17 21:38:15 linux-sm3q kernel: EIP is at flush_commit_list+0x5e/0x58d [reiserfs]
    Jul 17 21:38:15 linux-sm3q kernel: EAX: d9d72120 EBX: e186b000 ECX: dfbcb600 EDX: e1610ec6
    Jul 17 21:38:15 linux-sm3q kernel: ESI: c2844f80 EDI: 00009017 EBP: c285bf1c ESP: c285bedc
    Jul 17 21:38:15 linux-sm3q kernel:  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
    Jul 17 21:38:15 linux-sm3q kernel: Process assistant (pid: 3447, ti=c285a000 task=d9d72120 task.ti=c285a000)
    Jul 17 21:38:15 linux-sm3q kernel: Stack: 00000001 dfbcb600 00009017 e186b000 00000000 00000000 c240f4b4 00000000 
    Jul 17 21:38:15 linux-sm3q kernel:        c285bf58 c285bf10 c015f623 c240f4b4 00000000 e186b000 dfbcb600 00009017 
    Jul 17 21:38:15 linux-sm3q kernel:        c285bf64 e1607966 c240f408 c2844f80 00000000 00000000 00000001 00000000 
    Jul 17 21:38:15 linux-sm3q kernel: Call Trace:
    Jul 17 21:38:15 linux-sm3q kernel:  [<e1607966>] reiserfs_commit_for_inode+0x14f/0x17d [reiserfs]
    Jul 17 21:38:15 linux-sm3q kernel:  [<e15f5521>] reiserfs_sync_file+0x36/0x74 [reiserfs]
    Jul 17 21:38:15 linux-sm3q kernel:  [<c01954e2>] do_fsync+0x48/0x75
    Jul 17 21:38:15 linux-sm3q kernel:  [<c019552e>] __do_fsync+0x1f/0x2f
    Jul 17 21:38:15 linux-sm3q kernel:  [<c019555d>] sys_fsync+0xd/0xf
    Jul 17 21:38:15 linux-sm3q kernel:  [<c01059e4>] sysenter_past_esp+0x6d/0xa9
    Jul 17 21:38:15 linux-sm3q kernel:  [<ffffe430>] 0xffffe430
    Jul 17 21:38:15 linux-sm3q kernel:  =======================
    Jul 17 21:38:15 linux-sm3q kernel: Code: 45 c4 e8 c7 fd ff ff 83 7e 14 00 c7 45 d4 00 00 00 00 0f 85 14 05 00 00 64 a1 00 e0 4c c0 f0 ff 80 b4 06 00 00 83 7e 08 00 75 04 <0f> 0b eb fe 8b 4d cc 8b 45 c8 3b 41 18 75 04 0f 0b eb fe ff 46 
    Jul 17 21:38:15 linux-sm3q kernel: EIP: [<e1604edc>] flush_commit_list+0x5e/0x58d [reiserfs] SS:ESP 0068:c285bedc
    Jul 17 21:38:15 linux-sm3q kernel: ---[ end trace 56ba8f52468ed42b ]---
    Jul 17 21:38:15 linux-sm3q kernel: ------------[ cut here ]------------
    Jul 17 21:38:15 linux-sm3q kernel: WARNING: at kernel/exit.c:892 do_exit+0x31/0x5c6()
    Jul 17 21:38:15 linux-sm3q kernel: Modules linked in: ip6t_LOG xt_tcpudp xt_pkttype xt_physdev ipt_LOG xt_limit bridge bnep ip6t_REJECT nf_conntrack_ipv6 ipt_REJECT xt_state iptable_mangle iptable_nat nf_nat iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_ipv4 nf_conntrack ip_tables ip6table_filter ip6_tables x_tables snd_pcm_oss snd_mixer_oss ipv6 snd_seq snd_seq_device microcode firmware_class binfmt_misc fuse loop dm_mod rfcomm l2cap snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm snd_timer rtc_cmos snd rtc_core soundcore iTCO_wdt rtc_lib sr_mod snd_page_alloc iTCO_vendor_support sg i2c_i801 cdrom nvidia(P) tulip i2c_core hci_usb btusb intel_agp button agpgart shpchp bluetooth pci_hotplug usbhid hid ff_memless uhci_hcd ehci_hcd sd_mod usbcore edd fan thermal processor reiserfs ata_piix libata scsi_mod dock [last unloaded: speedstep_lib]
    Jul 17 21:38:15 linux-sm3q kernel: Pid: 3447, comm: assistant Tainted: P      D N 2.6.25.5-1.1-pae #1
    Jul 17 21:38:15 linux-sm3q kernel:  [<c01071d9>] dump_trace+0x63/0x227
    Jul 17 21:38:15 linux-sm3q kernel:  [<c0107c8a>] show_trace+0x15/0x29
    Jul 17 21:38:15 linux-sm3q kernel:  [<c02e84b5>] _etext+0x5b/0x65
    Jul 17 21:38:15 linux-sm3q kernel:  [<c012573d>] warn_on_slowpath+0x41/0x67
    Jul 17 21:38:15 linux-sm3q kernel:  [<c01287da>] do_exit+0x31/0x5c6
    Jul 17 21:38:15 linux-sm3q kernel:  [<c0107702>] die+0x15e/0x166
    Jul 17 21:38:15 linux-sm3q kernel:  [<c02e5279>] do_trap+0x8a/0xa3
    Jul 17 21:38:15 linux-sm3q kernel:  [<c0107b25>] do_invalid_op+0x6c/0x76
    Jul 17 21:38:15 linux-sm3q kernel:  [<c02e4bc2>] error_code+0x72/0x80
    Jul 17 21:38:15 linux-sm3q kernel:  [<e1604edc>] flush_commit_list+0x5e/0x58d [reiserfs]
    Jul 17 21:38:15 linux-sm3q kernel:  [<e1607966>] reiserfs_commit_for_inode+0x14f/0x17d [reiserfs]
    Jul 17 21:38:15 linux-sm3q kernel:  [<e15f5521>] reiserfs_sync_file+0x36/0x74 [reiserfs]
    Jul 17 21:38:15 linux-sm3q kernel:  [<c01954e2>] do_fsync+0x48/0x75
    Jul 17 21:38:15 linux-sm3q kernel:  [<c019552e>] __do_fsync+0x1f/0x2f
    Jul 17 21:38:15 linux-sm3q kernel:  [<c019555d>] sys_fsync+0xd/0xf
    Jul 17 21:38:15 linux-sm3q kernel:  [<c01059e4>] sysenter_past_esp+0x6d/0xa9
    Jul 17 21:38:15 linux-sm3q kernel:  [<ffffe430>] 0xffffe430
    Jul 17 21:38:15 linux-sm3q kernel:  =======================
    Jul 17 21:38:15 linux-sm3q kernel: ---[ end trace 56ba8f52468ed42b ]---

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