Re: 2.6.24-rc5-mm1: cat /proc/net/packet -> oops
Mariusz Kozlowski <[EMAIL PROTECTED]> wrote:
>
> git-ubi.patch
> GOOD
> #
> git-net.patch
> BAD
> ipsec-fix-reversed-icmp6-policy-check.patch
>
> but this seems to be far from precise :)
I suspect namespace borkage. But just because you pin-pointed
my patch I'll try to track it down :)
Cheers,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <[EMAIL PROTECTED]>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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Re: 2.6.24-rc5-mm1: cat /proc/net/packet -> oops
Hello, As one of usual tests I run the following script: for i in `find /proc -type f`; do echo -n "cat $i > /dev/null ... "; cat $i > /dev/null; echo "done"; done This time the culprit is /proc/net/packet. cat process gets killed $ cat /proc/net/packet Segmentation fault and lost in lots of messages from the script but for some reason there is no info in syslog (why?). I could capture the oops only when issued sysrq-7 or grater. That's why I didn't catch the oops earlier. I found it because the bug makes my sparc64 box need a hardware reset most of the time it happens and produces oops 2 screens long. x86 kills the cat process but system is still usable and running fine. Bisection points to: git-ubi.patch GOOD # git-net.patch BAD ipsec-fix-reversed-icmp6-policy-check.patch but this seems to be far from precise :) $ grep ^commit git-net.patch | wc -l 361 Not sure if this is important but when bisecting the mm tree the oops got shorter at some point so maybe some other patch is also involved. This one is from x86: [ 194.508398] BUG: unable to handle kernel paging request at virtual address bd47 [ 194.508412] printing eip: c0135d59 *pde = [ 194.508419] Oops: [#1] PREEMPT [ 194.508424] last sysfs file: /devices/pci:00/:00:01.0/:01:05.0/resource [ 194.508428] Modules linked in: usbhid hid orinoco_cs orinoco hermes pcmcia firmware_class uhci_hcd ehci_hcd usbcore psmouse yenta_socket rsrc_nonstatic rtc 8139too [ 194.508443] [ 194.508447] Pid: 5368, comm: cat Not tainted (2.6.24-rc5 #9) [ 194.508450] EIP: 0060:[] EFLAGS: 00210046 CPU: 0 [ 194.508466] EIP is at __lock_acquire+0x5b/0xfc4 [ 194.508469] EAX: 0022 EBX: 00200246 ECX: bd43 EDX: 0002 [ 194.508472] ESI: bd43 EDI: EBP: d816ce80 ESP: d816ce14 [ 194.508475] DS: 007b ES: 007b FS: GS: 0033 SS: 0068 [ 194.508479] Process cat (pid: 5368, ti=d816c000 task=d826a000 task.ti=d816c000) [ 194.508481] Stack: c0135a21 d826a000 d816ce38 c0135697 d826a000 c0146ded [ 194.508490]c1304f98 0002 bd43 0001 d826a000 d816cec0 c013681d [ 194.508498]0006 0003 c03daa08 0001 0044 02ad 0005 [ 194.508506] Call Trace: [ 194.508508] [] show_trace_log_lvl+0x1a/0x30 [ 194.508518] [] show_stack_log_lvl+0xa5/0xca [ 194.508523] [] show_registers+0xcf/0x23f [ 194.508528] [] die+0x10d/0x1f5 [ 194.508532] [] do_page_fault+0x27e/0x5f0 [ 194.508540] [] error_code+0x6a/0x70 [ 194.508550] [] lock_acquire+0x5e/0x76 [ 194.508555] [] _read_lock+0x35/0x42 [ 194.508560] [] sock_i_ino+0x14/0x30 [ 194.508568] [] packet_seq_show+0x19/0xa0 [ 194.508576] [] seq_read+0x19a/0x29e [ 194.508583] [] proc_reg_read+0x57/0x78 [ 194.508590] [] vfs_read+0x89/0x11d [ 194.508596] [] sys_read+0x3d/0x64 [ 194.508600] [] sysenter_past_esp+0x5f/0xa5 [ 194.508605] === [ 194.508607] Code: c0 85 c0 0f 84 64 03 00 00 9c 58 f6 c4 02 0f 85 b8 07 00 00 83 ff 07 0f 87 de 07 00 00 85 ff 8d 76 00 0f 85 4f 03 00 00 8b 4d c0 <8b> 71 04 85 f6 0f 84 41 03 00 00 89 f0 e8 d8 d7 ff ff 85 c0 0f [ 194.508651] EIP: [] __lock_acquire+0x5b/0xfc4 SS:ESP 0068:d816ce14 [ 194.508660] note: cat[5368] exited with preempt_count 2 .config attached. Regards, Mariusz # # Automatically generated make config: don't edit # Linux kernel version: 2.6.24-rc5 # Sun Dec 16 00:22:27 2007 # # CONFIG_64BIT is not set CONFIG_X86_32=y # CONFIG_X86_64 is not set CONFIG_X86=y CONFIG_GENERIC_TIME=y CONFIG_GENERIC_CMOS_UPDATE=y CONFIG_CLOCKSOURCE_WATCHDOG=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_SEMAPHORE_SLEEPERS=y CONFIG_MMU=y CONFIG_ZONE_DMA=y CONFIG_QUICKLIST=y CONFIG_GENERIC_ISA_DMA=y CONFIG_GENERIC_IOMAP=y CONFIG_GENERIC_BUG=y CONFIG_GENERIC_HWEIGHT=y CONFIG_ARCH_MAY_HAVE_PC_FDC=y CONFIG_DMI=y # CONFIG_RWSEM_GENERIC_SPINLOCK is not set CONFIG_RWSEM_XCHGADD_ALGORITHM=y # CONFIG_ARCH_HAS_ILOG2_U32 is not set # CONFIG_ARCH_HAS_ILOG2_U64 is not set CONFIG_GENERIC_CALIBRATE_DELAY=y # CONFIG_GENERIC_TIME_VSYSCALL is not set CONFIG_ARCH_SUPPORTS_OPROFILE=y CONFIG_ARCH_HIBERNATION_POSSIBLE=y CONFIG_ARCH_SUSPEND_POSSIBLE=y # CONFIG_ZONE_DMA32 is not set CONFIG_ARCH_POPULATES_NODE_MAP=y # CONFIG_AUDIT_ARCH is not set CONFIG_GENERIC_HARDIRQS=y CONFIG_GENERIC_IRQ_PROBE=y CONFIG_X86_BIOS_REBOOT=y CONFIG_KTIME_SCALAR=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" # # General setup # CONFIG_EXPERIMENTAL=y CONFIG_BROKEN_ON_SMP=y CONFIG_LOCK_KERNEL=y CONFIG_INIT_ENV_ARG_LIMIT=32 CONFIG_LOCALVERSION="" # CONFIG_LOCALVERSION_AUTO is not set CONFIG_SWAP=y CONFIG_SYSVIPC=y CONFIG_SYSVIPC_SYSCTL=y CONFIG_POSIX_MQUEUE=y CONFIG_BSD_PROCESS_ACCT=y # CONFIG_BSD_PROCESS_ACCT_V3 is not set # CONFIG_TASKSTATS is not set # CONFIG_USER_NS is not set # CONFIG_PID_NS is not set # CONFIG_AUDIT is not set
Re: 2.6.24-rc5-mm1: cat /proc/net/packet - oops
Hello, As one of usual tests I run the following script: for i in `find /proc -type f`; do echo -n cat $i /dev/null ... ; cat $i /dev/null; echo done; done This time the culprit is /proc/net/packet. cat process gets killed $ cat /proc/net/packet Segmentation fault and lost in lots of messages from the script but for some reason there is no info in syslog (why?). I could capture the oops only when issued sysrq-7 or grater. That's why I didn't catch the oops earlier. I found it because the bug makes my sparc64 box need a hardware reset most of the time it happens and produces oops 2 screens long. x86 kills the cat process but system is still usable and running fine. Bisection points to: git-ubi.patch GOOD # git-net.patch BAD ipsec-fix-reversed-icmp6-policy-check.patch but this seems to be far from precise :) $ grep ^commit git-net.patch | wc -l 361 Not sure if this is important but when bisecting the mm tree the oops got shorter at some point so maybe some other patch is also involved. This one is from x86: [ 194.508398] BUG: unable to handle kernel paging request at virtual address bd47 [ 194.508412] printing eip: c0135d59 *pde = [ 194.508419] Oops: [#1] PREEMPT [ 194.508424] last sysfs file: /devices/pci:00/:00:01.0/:01:05.0/resource [ 194.508428] Modules linked in: usbhid hid orinoco_cs orinoco hermes pcmcia firmware_class uhci_hcd ehci_hcd usbcore psmouse yenta_socket rsrc_nonstatic rtc 8139too [ 194.508443] [ 194.508447] Pid: 5368, comm: cat Not tainted (2.6.24-rc5 #9) [ 194.508450] EIP: 0060:[c0135d59] EFLAGS: 00210046 CPU: 0 [ 194.508466] EIP is at __lock_acquire+0x5b/0xfc4 [ 194.508469] EAX: 0022 EBX: 00200246 ECX: bd43 EDX: 0002 [ 194.508472] ESI: bd43 EDI: EBP: d816ce80 ESP: d816ce14 [ 194.508475] DS: 007b ES: 007b FS: GS: 0033 SS: 0068 [ 194.508479] Process cat (pid: 5368, ti=d816c000 task=d826a000 task.ti=d816c000) [ 194.508481] Stack: c0135a21 d826a000 d816ce38 c0135697 d826a000 c0146ded [ 194.508490]c1304f98 0002 bd43 0001 d826a000 d816cec0 c013681d [ 194.508498]0006 0003 c03daa08 0001 0044 02ad 0005 [ 194.508506] Call Trace: [ 194.508508] [c01035d8] show_trace_log_lvl+0x1a/0x30 [ 194.508518] [c0103693] show_stack_log_lvl+0xa5/0xca [ 194.508523] [c0103787] show_registers+0xcf/0x23f [ 194.508528] [c0103a04] die+0x10d/0x1f5 [ 194.508532] [c0110cee] do_page_fault+0x27e/0x5f0 [ 194.508540] [c034684a] error_code+0x6a/0x70 [ 194.508550] [c0136d20] lock_acquire+0x5e/0x76 [ 194.508555] [c03461a6] _read_lock+0x35/0x42 [ 194.508560] [c02d957a] sock_i_ino+0x14/0x30 [ 194.508568] [c032c7e8] packet_seq_show+0x19/0xa0 [ 194.508576] [c0179f5c] seq_read+0x19a/0x29e [ 194.508583] [c0191b25] proc_reg_read+0x57/0x78 [ 194.508590] [c0161c8a] vfs_read+0x89/0x11d [ 194.508596] [c0162054] sys_read+0x3d/0x64 [ 194.508600] [c010261a] sysenter_past_esp+0x5f/0xa5 [ 194.508605] === [ 194.508607] Code: c0 85 c0 0f 84 64 03 00 00 9c 58 f6 c4 02 0f 85 b8 07 00 00 83 ff 07 0f 87 de 07 00 00 85 ff 8d 76 00 0f 85 4f 03 00 00 8b 4d c0 8b 71 04 85 f6 0f 84 41 03 00 00 89 f0 e8 d8 d7 ff ff 85 c0 0f [ 194.508651] EIP: [c0135d59] __lock_acquire+0x5b/0xfc4 SS:ESP 0068:d816ce14 [ 194.508660] note: cat[5368] exited with preempt_count 2 .config attached. Regards, Mariusz # # Automatically generated make config: don't edit # Linux kernel version: 2.6.24-rc5 # Sun Dec 16 00:22:27 2007 # # CONFIG_64BIT is not set CONFIG_X86_32=y # CONFIG_X86_64 is not set CONFIG_X86=y CONFIG_GENERIC_TIME=y CONFIG_GENERIC_CMOS_UPDATE=y CONFIG_CLOCKSOURCE_WATCHDOG=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_SEMAPHORE_SLEEPERS=y CONFIG_MMU=y CONFIG_ZONE_DMA=y CONFIG_QUICKLIST=y CONFIG_GENERIC_ISA_DMA=y CONFIG_GENERIC_IOMAP=y CONFIG_GENERIC_BUG=y CONFIG_GENERIC_HWEIGHT=y CONFIG_ARCH_MAY_HAVE_PC_FDC=y CONFIG_DMI=y # CONFIG_RWSEM_GENERIC_SPINLOCK is not set CONFIG_RWSEM_XCHGADD_ALGORITHM=y # CONFIG_ARCH_HAS_ILOG2_U32 is not set # CONFIG_ARCH_HAS_ILOG2_U64 is not set CONFIG_GENERIC_CALIBRATE_DELAY=y # CONFIG_GENERIC_TIME_VSYSCALL is not set CONFIG_ARCH_SUPPORTS_OPROFILE=y CONFIG_ARCH_HIBERNATION_POSSIBLE=y CONFIG_ARCH_SUSPEND_POSSIBLE=y # CONFIG_ZONE_DMA32 is not set CONFIG_ARCH_POPULATES_NODE_MAP=y # CONFIG_AUDIT_ARCH is not set CONFIG_GENERIC_HARDIRQS=y CONFIG_GENERIC_IRQ_PROBE=y CONFIG_X86_BIOS_REBOOT=y CONFIG_KTIME_SCALAR=y CONFIG_DEFCONFIG_LIST=/lib/modules/$UNAME_RELEASE/.config # # General setup # CONFIG_EXPERIMENTAL=y CONFIG_BROKEN_ON_SMP=y CONFIG_LOCK_KERNEL=y CONFIG_INIT_ENV_ARG_LIMIT=32 CONFIG_LOCALVERSION= # CONFIG_LOCALVERSION_AUTO is not set CONFIG_SWAP=y CONFIG_SYSVIPC=y CONFIG_SYSVIPC_SYSCTL=y CONFIG_POSIX_MQUEUE=y CONFIG_BSD_PROCESS_ACCT=y #
Re: 2.6.24-rc5-mm1: cat /proc/net/packet - oops
Mariusz Kozlowski [EMAIL PROTECTED] wrote:
git-ubi.patch
GOOD
#
git-net.patch
BAD
ipsec-fix-reversed-icmp6-policy-check.patch
but this seems to be far from precise :)
I suspect namespace borkage. But just because you pin-pointed
my patch I'll try to track it down :)
Cheers,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmVHI~} [EMAIL PROTECTED]
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
