Re: cat /dev/snapshot == OOPs
10 Haz 2007 Paz tarihinde, Rafael J. Wysocki şunları yazmıştı: > Can you please try the appended patch? I cannot reproduce the oops with that patch applied... Cheers -- S.Çağlar Onur <[EMAIL PROTECTED]> http://cekirdek.pardus.org.tr/~caglar/ Linux is like living in a teepee. No Windows, no Gates and an Apache in house! signature.asc Description: This is a digitally signed message part.
Re: cat /dev/snapshot == OOPs
On Sunday 10 of June 2007, Rafael J. Wysocki wrote: > > > > [54498.464550] device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) > > initialised: [EMAIL PROTECTED] > > [56592.077674] swsusp: Basic memory bitmaps created > > [56592.084340] BUG: unable to handle kernel NULL pointer dereference at > > virtual address 000c > > Can you please try the appended patch? [EMAIL PROTECTED] ~]# LC_ALL=C cat /dev/snapshot cat: /dev/snapshot: No data available [ 237.939976] swsusp: Basic memory bitmaps created [ 237.956642] swsusp: Basic memory bitmaps freed no oops with that patch. > Rafael -- Arkadiusz MiśkiewiczPLD/Linux Team arekm / maven.plhttp://ftp.pld-linux.org/ - 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/
Re: cat /dev/snapshot == OOPs
On Sunday, 10 June 2007 15:42, Arkadiusz Miskiewicz wrote:
> Hello,
>
> Is this desired behaviour?
Obviously not.
> $ sudo cat /dev/snapshot
>
> ended with:
>
> [54498.464550] device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) initialised:
> [EMAIL PROTECTED]
> [56592.077674] swsusp: Basic memory bitmaps created
> [56592.084340] BUG: unable to handle kernel NULL pointer dereference at
> virtual address 000c
Can you please try the appended patch?
Rafael
Signed-off-by: Rafael J. Wysocki <[EMAIL PROTECTED]>
---
kernel/power/user.c |4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
Index: linux-2.6.22-rc4/kernel/power/user.c
===
--- linux-2.6.22-rc4.orig/kernel/power/user.c 2007-06-10 19:33:36.0
+0200
+++ linux-2.6.22-rc4/kernel/power/user.c2007-06-10 19:35:59.0
+0200
@@ -99,6 +99,8 @@ static ssize_t snapshot_read(struct file
ssize_t res;
data = filp->private_data;
+ if (!data->ready)
+ return -ENODATA;
res = snapshot_read_next(>handle, count);
if (res > 0) {
if (copy_to_user(buf, data_of(data->handle), res))
@@ -163,7 +165,7 @@ static int snapshot_ioctl(struct inode *
break;
case SNAPSHOT_UNFREEZE:
- if (!data->frozen)
+ if (!data->frozen || data->ready)
break;
mutex_lock(_mutex);
thaw_processes();
-
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Re: cat /dev/snapshot == OOPs
On 2007.06.10 15:42:33 +0200, Arkadiusz Miskiewicz wrote: > Hello, > > Is this desired behaviour? > > $ sudo cat /dev/snapshot > > ended with: > > [54498.464550] device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) initialised: > [EMAIL PROTECTED] > [56592.077674] swsusp: Basic memory bitmaps created > [56592.084340] BUG: unable to handle kernel NULL pointer dereference at > virtual address 000c > [56592.084340] printing eip: > [56592.084340] c0135a6e > [56592.084340] *pde = > [56592.084340] Oops: [#1] > [56592.084340] Modules linked in: dm_snapshot dm_mod radeon drm binfmt_misc > ipv6 sch_sfq mmc_block rfcomm l2cap bluetooth ircomm_tty ircomm > cpufreq_ondemand acpi_cpufreq freq_table hdaps snd_pcm_oss snd_mixer_oss > video thermal processor fan container evdev button battery ac nvram > thinkpad_acpi hwmon backlight tun capability commoncap firewire_ohci > firewire_core crc_itu_t ahci pcmcia sdhci usbhid hid ff_memless ohci1394 > mmc_core ata_generic ipw2200 ieee80211 ieee80211_crypt firmware_class > ieee1394 yenta_socket rsrc_nonstatic pcmcia_core nsc_ircc tg3 snd_hda_intel > generic i2c_i801 i2c_core ide_core snd_pcm snd_timer snd intel_agp iTCO_wdt > iTCO_vendor_support soundcore sr_mod psmouse agpgart snd_page_alloc serio_raw > uhci_hcd irda crc_ccitt ehci_hcd usbcore cdrom rtc_cmos rtc_core rtc_lib xfs > scsi_wait_scan sd_mod ata_piix libata scsi_mod > [56592.084340] CPU:0 > [56592.084340] EIP:0060:[]Not tainted VLI > [56592.084340] EFLAGS: 00210206 (2.6.22-rc4 #70) > [56592.084340] EIP is at snapshot_read_next+0xcf/0x1d7 > [56592.084340] eax: ebx: d96fd200 ecx: c038e8f8 edx: e0688000 > [56592.084340] esi: c031c462 edi: e0688186 ebp: ee42df5c esp: ee42df48 > [56592.084340] ds: 007b es: 007b fs: gs: 0033 ss: 0068 > [56592.084340] Process cat (pid: 22965, ti=ee42c000 task=c7d55480 > task.ti=ee42c000) > [56592.084340] Stack: 1000 c038e8f8 d96fd200 c038e8f8 0804e000 ee42df70 > c0136ba5 d96fd200 > [56592.084340]c0136b91 0804e000 ee42df90 c015b26b ee42df9c 0006 > 1000 d96fd200 > [56592.084340]fff7 0804e000 ee42dfb0 c015b5d3 ee42df9c > > [56592.084340] Call Trace: > [56592.084340] [] show_trace_log_lvl+0x1a/0x2f > [56592.084340] [] show_stack_log_lvl+0x9b/0xa3 > [56592.084340] [] show_registers+0x1b4/0x286 > [56592.084340] [] die+0xdf/0x1b1 > [56592.084340] [] do_page_fault+0x424/0x4f0 > [56592.084340] [] error_code+0x6a/0x70 > [56592.084340] [] snapshot_read+0x14/0x48 > [56592.084340] [] vfs_read+0xad/0x15f > [56592.084340] [] sys_read+0x3d/0x61 > [56592.084340] [] sysenter_past_esp+0x5f/0x85 > [56592.084340] === > [56592.084340] Code: 03 05 b4 e8 38 c0 40 89 82 98 01 00 00 c1 e0 0c 89 82 9c > 01 00 00 a1 a0 e8 38 c0 8b 4d f0 89 41 14 a1 b8 e8 38 c0 a3 c0 e8 38 c0 <8b> > 40 0c c7 05 c8 e8 38 c0 00 00 00 00 c7 05 cc e8 38 c0 ff ff > [56592.084340] EIP: [] snapshot_read_next+0xcf/0x1d7 SS:ESP > 0068:ee42df48 > [56592.101007] swsusp: Basic memory bitmaps freed Looks like it is the access to zone_bm->bm_blocks aka orig_bm.zone_bm_list->bm_blocks. zone_bm_list is NULL unless swsusp_save() is called. I don't see any state variable that would allow an obvious fix though, so I'll leave that to the swsusp guys. Björn - 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/
Re: cat /dev/snapshot == OOPs
10 Haz 2007 Paz tarihinde, Arkadiusz Miskiewicz şunları yazmıştı: > sudo cat /dev/snapshot Same here with Linus's latest (although mine is tainted) [11028.693171] swsusp: Basic memory bitmaps created [11028.693219] BUG: unable to handle kernel NULL pointer dereference at virtual address 000c [11028.693227] printing eip: [11028.693230] c0148b33 [11028.693232] *pde = [11028.693237] Oops: [#1] [11028.693240] SMP [11028.693244] Modules linked in: isofs zlib_inflate af_packet snd_pcm_oss snd_mixer_oss snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_hda_intel snd_pcm snd_timer snd soundcore snd_page_alloc nvidia(P) uvcvideo compat_ioctl32 videodev v4l1_compat v4l2_common hci_usb bluetooth intel_agp agpgart tsdev usbhid hid ff_memless sdhci mmc_core i2c_i801 i2c_core joydev iTCO_wdt iTCO_vendor_support firewire_ohci firewire_core crc_itu_t e100 mii ipw3945 ieee80211 ieee80211_crypt firmware_class serio_raw cpufreq_ondemand cpufreq_userspace cpufreq_powersave acpi_cpufreq freq_table rtc_cmos rtc_core rtc_lib ext3 jbd mbcache sr_mod cdrom sd_mod ata_generic ehci_hcd ata_piix ohci1394 ieee1394 uhci_hcd usbcore ahci libata scsi_mod [11028.693331] CPU:0 [11028.693332] EIP:0060:[]Tainted: P VLI [11028.693335] EFLAGS: 00010206 (2.6.22-rc4-CFS-v16 #4) [11028.693344] EIP is at memory_bm_position_reset+0x5/0x1a [11028.693349] eax: c03d808c ebx: c03d80e0 ecx: 0002 edx: [11028.693355] esi: c57f6d80 edi: 08051000 ebp: 1000 esp: e0383f50 [11028.693359] ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068 [11028.693365] Process cat (pid: 13165, ti=e0382000 task=f6109800 task.ti=e0382000) [11028.693368] Stack: c0149882 08051000 c03d80e0 c57f6d80 08051000 c014ae82 1000 [11028.693381]c57f6d80 c02b4d00 c0174664 e0383fa0 f6109800 08051000 c57f6d80 fff7 [11028.693393]08051000 e0382000 c01749a8 e0383fa0 0003 [11028.693404] Call Trace: [11028.693408] [] snapshot_read_next+0x6b/0x164 [11028.693425] [] snapshot_read+0x11/0x45 [11028.693438] [] vfs_read+0xb1/0x15b [11028.693456] [] sys_read+0x41/0x67 [11028.693471] [] syscall_call+0x7/0xb [11028.693505] === [11028.693507] Code: 74 07 89 f8 e8 5d 04 00 00 31 d2 89 f8 e8 13 2d 01 00 89 f2 eb b4 31 c0 b9 04 00 00 00 89 df f3 ab 5b 5e 5f 5d c3 8b 10 89 50 08 <8b> 52 0c c7 40 10 00 00 00 00 c7 40 14 ff ff ff ff 89 50 0c c3 [11028.693561] EIP: [] memory_bm_position_reset+0x5/0x1a SS:ESP 0068:e0383f50 [11028.707698] swsusp: Basic memory bitmaps freed Cheers -- S.Çağlar Onur <[EMAIL PROTECTED]> http://cekirdek.pardus.org.tr/~caglar/ Linux is like living in a teepee. No Windows, no Gates and an Apache in house! signature.asc Description: This is a digitally signed message part.
cat /dev/snapshot == OOPs
Hello, Is this desired behaviour? $ sudo cat /dev/snapshot ended with: [54498.464550] device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) initialised: [EMAIL PROTECTED] [56592.077674] swsusp: Basic memory bitmaps created [56592.084340] BUG: unable to handle kernel NULL pointer dereference at virtual address 000c [56592.084340] printing eip: [56592.084340] c0135a6e [56592.084340] *pde = [56592.084340] Oops: [#1] [56592.084340] Modules linked in: dm_snapshot dm_mod radeon drm binfmt_misc ipv6 sch_sfq mmc_block rfcomm l2cap bluetooth ircomm_tty ircomm cpufreq_ondemand acpi_cpufreq freq_table hdaps snd_pcm_oss snd_mixer_oss video thermal processor fan container evdev button battery ac nvram thinkpad_acpi hwmon backlight tun capability commoncap firewire_ohci firewire_core crc_itu_t ahci pcmcia sdhci usbhid hid ff_memless ohci1394 mmc_core ata_generic ipw2200 ieee80211 ieee80211_crypt firmware_class ieee1394 yenta_socket rsrc_nonstatic pcmcia_core nsc_ircc tg3 snd_hda_intel generic i2c_i801 i2c_core ide_core snd_pcm snd_timer snd intel_agp iTCO_wdt iTCO_vendor_support soundcore sr_mod psmouse agpgart snd_page_alloc serio_raw uhci_hcd irda crc_ccitt ehci_hcd usbcore cdrom rtc_cmos rtc_core rtc_lib xfs scsi_wait_scan sd_mod ata_piix libata scsi_mod [56592.084340] CPU:0 [56592.084340] EIP:0060:[]Not tainted VLI [56592.084340] EFLAGS: 00210206 (2.6.22-rc4 #70) [56592.084340] EIP is at snapshot_read_next+0xcf/0x1d7 [56592.084340] eax: ebx: d96fd200 ecx: c038e8f8 edx: e0688000 [56592.084340] esi: c031c462 edi: e0688186 ebp: ee42df5c esp: ee42df48 [56592.084340] ds: 007b es: 007b fs: gs: 0033 ss: 0068 [56592.084340] Process cat (pid: 22965, ti=ee42c000 task=c7d55480 task.ti=ee42c000) [56592.084340] Stack: 1000 c038e8f8 d96fd200 c038e8f8 0804e000 ee42df70 c0136ba5 d96fd200 [56592.084340]c0136b91 0804e000 ee42df90 c015b26b ee42df9c 0006 1000 d96fd200 [56592.084340]fff7 0804e000 ee42dfb0 c015b5d3 ee42df9c [56592.084340] Call Trace: [56592.084340] [] show_trace_log_lvl+0x1a/0x2f [56592.084340] [] show_stack_log_lvl+0x9b/0xa3 [56592.084340] [] show_registers+0x1b4/0x286 [56592.084340] [] die+0xdf/0x1b1 [56592.084340] [] do_page_fault+0x424/0x4f0 [56592.084340] [] error_code+0x6a/0x70 [56592.084340] [] snapshot_read+0x14/0x48 [56592.084340] [] vfs_read+0xad/0x15f [56592.084340] [] sys_read+0x3d/0x61 [56592.084340] [] sysenter_past_esp+0x5f/0x85 [56592.084340] === [56592.084340] Code: 03 05 b4 e8 38 c0 40 89 82 98 01 00 00 c1 e0 0c 89 82 9c 01 00 00 a1 a0 e8 38 c0 8b 4d f0 89 41 14 a1 b8 e8 38 c0 a3 c0 e8 38 c0 <8b> 40 0c c7 05 c8 e8 38 c0 00 00 00 00 c7 05 cc e8 38 c0 ff ff [56592.084340] EIP: [] snapshot_read_next+0xcf/0x1d7 SS:ESP 0068:ee42df48 [56592.101007] swsusp: Basic memory bitmaps freed that's on i686 with git tree with latest commit: 845a2fdcbd5bc5b9f652201ee95c825827a1d521 -- Arkadiusz MiśkiewiczPLD/Linux Team arekm / maven.plhttp://ftp.pld-linux.org/ - 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/
cat /dev/snapshot == OOPs
Hello, Is this desired behaviour? $ sudo cat /dev/snapshot ended with: [54498.464550] device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) initialised: [EMAIL PROTECTED] [56592.077674] swsusp: Basic memory bitmaps created [56592.084340] BUG: unable to handle kernel NULL pointer dereference at virtual address 000c [56592.084340] printing eip: [56592.084340] c0135a6e [56592.084340] *pde = [56592.084340] Oops: [#1] [56592.084340] Modules linked in: dm_snapshot dm_mod radeon drm binfmt_misc ipv6 sch_sfq mmc_block rfcomm l2cap bluetooth ircomm_tty ircomm cpufreq_ondemand acpi_cpufreq freq_table hdaps snd_pcm_oss snd_mixer_oss video thermal processor fan container evdev button battery ac nvram thinkpad_acpi hwmon backlight tun capability commoncap firewire_ohci firewire_core crc_itu_t ahci pcmcia sdhci usbhid hid ff_memless ohci1394 mmc_core ata_generic ipw2200 ieee80211 ieee80211_crypt firmware_class ieee1394 yenta_socket rsrc_nonstatic pcmcia_core nsc_ircc tg3 snd_hda_intel generic i2c_i801 i2c_core ide_core snd_pcm snd_timer snd intel_agp iTCO_wdt iTCO_vendor_support soundcore sr_mod psmouse agpgart snd_page_alloc serio_raw uhci_hcd irda crc_ccitt ehci_hcd usbcore cdrom rtc_cmos rtc_core rtc_lib xfs scsi_wait_scan sd_mod ata_piix libata scsi_mod [56592.084340] CPU:0 [56592.084340] EIP:0060:[c0135a6e]Not tainted VLI [56592.084340] EFLAGS: 00210206 (2.6.22-rc4 #70) [56592.084340] EIP is at snapshot_read_next+0xcf/0x1d7 [56592.084340] eax: ebx: d96fd200 ecx: c038e8f8 edx: e0688000 [56592.084340] esi: c031c462 edi: e0688186 ebp: ee42df5c esp: ee42df48 [56592.084340] ds: 007b es: 007b fs: gs: 0033 ss: 0068 [56592.084340] Process cat (pid: 22965, ti=ee42c000 task=c7d55480 task.ti=ee42c000) [56592.084340] Stack: 1000 c038e8f8 d96fd200 c038e8f8 0804e000 ee42df70 c0136ba5 d96fd200 [56592.084340]c0136b91 0804e000 ee42df90 c015b26b ee42df9c 0006 1000 d96fd200 [56592.084340]fff7 0804e000 ee42dfb0 c015b5d3 ee42df9c [56592.084340] Call Trace: [56592.084340] [c0104a50] show_trace_log_lvl+0x1a/0x2f [56592.084340] [c0104b00] show_stack_log_lvl+0x9b/0xa3 [56592.084340] [c0104cbc] show_registers+0x1b4/0x286 [56592.084340] [c0104e6d] die+0xdf/0x1b1 [56592.084340] [c01148a0] do_page_fault+0x424/0x4f0 [56592.084340] [c027f90a] error_code+0x6a/0x70 [56592.084340] [c0136ba5] snapshot_read+0x14/0x48 [56592.084340] [c015b26b] vfs_read+0xad/0x15f [56592.084340] [c015b5d3] sys_read+0x3d/0x61 [56592.084340] [c0103b8a] sysenter_past_esp+0x5f/0x85 [56592.084340] === [56592.084340] Code: 03 05 b4 e8 38 c0 40 89 82 98 01 00 00 c1 e0 0c 89 82 9c 01 00 00 a1 a0 e8 38 c0 8b 4d f0 89 41 14 a1 b8 e8 38 c0 a3 c0 e8 38 c0 8b 40 0c c7 05 c8 e8 38 c0 00 00 00 00 c7 05 cc e8 38 c0 ff ff [56592.084340] EIP: [c0135a6e] snapshot_read_next+0xcf/0x1d7 SS:ESP 0068:ee42df48 [56592.101007] swsusp: Basic memory bitmaps freed that's on i686 with git tree with latest commit: 845a2fdcbd5bc5b9f652201ee95c825827a1d521 -- Arkadiusz MiśkiewiczPLD/Linux Team arekm / maven.plhttp://ftp.pld-linux.org/ - 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/
Re: cat /dev/snapshot == OOPs
10 Haz 2007 Paz tarihinde, Arkadiusz Miskiewicz şunları yazmıştı: sudo cat /dev/snapshot Same here with Linus's latest (although mine is tainted) [11028.693171] swsusp: Basic memory bitmaps created [11028.693219] BUG: unable to handle kernel NULL pointer dereference at virtual address 000c [11028.693227] printing eip: [11028.693230] c0148b33 [11028.693232] *pde = [11028.693237] Oops: [#1] [11028.693240] SMP [11028.693244] Modules linked in: isofs zlib_inflate af_packet snd_pcm_oss snd_mixer_oss snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_hda_intel snd_pcm snd_timer snd soundcore snd_page_alloc nvidia(P) uvcvideo compat_ioctl32 videodev v4l1_compat v4l2_common hci_usb bluetooth intel_agp agpgart tsdev usbhid hid ff_memless sdhci mmc_core i2c_i801 i2c_core joydev iTCO_wdt iTCO_vendor_support firewire_ohci firewire_core crc_itu_t e100 mii ipw3945 ieee80211 ieee80211_crypt firmware_class serio_raw cpufreq_ondemand cpufreq_userspace cpufreq_powersave acpi_cpufreq freq_table rtc_cmos rtc_core rtc_lib ext3 jbd mbcache sr_mod cdrom sd_mod ata_generic ehci_hcd ata_piix ohci1394 ieee1394 uhci_hcd usbcore ahci libata scsi_mod [11028.693331] CPU:0 [11028.693332] EIP:0060:[c0148b33]Tainted: P VLI [11028.693335] EFLAGS: 00010206 (2.6.22-rc4-CFS-v16 #4) [11028.693344] EIP is at memory_bm_position_reset+0x5/0x1a [11028.693349] eax: c03d808c ebx: c03d80e0 ecx: 0002 edx: [11028.693355] esi: c57f6d80 edi: 08051000 ebp: 1000 esp: e0383f50 [11028.693359] ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068 [11028.693365] Process cat (pid: 13165, ti=e0382000 task=f6109800 task.ti=e0382000) [11028.693368] Stack: c0149882 08051000 c03d80e0 c57f6d80 08051000 c014ae82 1000 [11028.693381]c57f6d80 c02b4d00 c0174664 e0383fa0 f6109800 08051000 c57f6d80 fff7 [11028.693393]08051000 e0382000 c01749a8 e0383fa0 0003 [11028.693404] Call Trace: [11028.693408] [c0149882] snapshot_read_next+0x6b/0x164 [11028.693425] [c014ae82] snapshot_read+0x11/0x45 [11028.693438] [c0174664] vfs_read+0xb1/0x15b [11028.693456] [c01749a8] sys_read+0x41/0x67 [11028.693471] [c0103dd0] syscall_call+0x7/0xb [11028.693505] === [11028.693507] Code: 74 07 89 f8 e8 5d 04 00 00 31 d2 89 f8 e8 13 2d 01 00 89 f2 eb b4 31 c0 b9 04 00 00 00 89 df f3 ab 5b 5e 5f 5d c3 8b 10 89 50 08 8b 52 0c c7 40 10 00 00 00 00 c7 40 14 ff ff ff ff 89 50 0c c3 [11028.693561] EIP: [c0148b33] memory_bm_position_reset+0x5/0x1a SS:ESP 0068:e0383f50 [11028.707698] swsusp: Basic memory bitmaps freed Cheers -- S.Çağlar Onur [EMAIL PROTECTED] http://cekirdek.pardus.org.tr/~caglar/ Linux is like living in a teepee. No Windows, no Gates and an Apache in house! signature.asc Description: This is a digitally signed message part.
Re: cat /dev/snapshot == OOPs
On 2007.06.10 15:42:33 +0200, Arkadiusz Miskiewicz wrote: Hello, Is this desired behaviour? $ sudo cat /dev/snapshot ended with: [54498.464550] device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) initialised: [EMAIL PROTECTED] [56592.077674] swsusp: Basic memory bitmaps created [56592.084340] BUG: unable to handle kernel NULL pointer dereference at virtual address 000c [56592.084340] printing eip: [56592.084340] c0135a6e [56592.084340] *pde = [56592.084340] Oops: [#1] [56592.084340] Modules linked in: dm_snapshot dm_mod radeon drm binfmt_misc ipv6 sch_sfq mmc_block rfcomm l2cap bluetooth ircomm_tty ircomm cpufreq_ondemand acpi_cpufreq freq_table hdaps snd_pcm_oss snd_mixer_oss video thermal processor fan container evdev button battery ac nvram thinkpad_acpi hwmon backlight tun capability commoncap firewire_ohci firewire_core crc_itu_t ahci pcmcia sdhci usbhid hid ff_memless ohci1394 mmc_core ata_generic ipw2200 ieee80211 ieee80211_crypt firmware_class ieee1394 yenta_socket rsrc_nonstatic pcmcia_core nsc_ircc tg3 snd_hda_intel generic i2c_i801 i2c_core ide_core snd_pcm snd_timer snd intel_agp iTCO_wdt iTCO_vendor_support soundcore sr_mod psmouse agpgart snd_page_alloc serio_raw uhci_hcd irda crc_ccitt ehci_hcd usbcore cdrom rtc_cmos rtc_core rtc_lib xfs scsi_wait_scan sd_mod ata_piix libata scsi_mod [56592.084340] CPU:0 [56592.084340] EIP:0060:[c0135a6e]Not tainted VLI [56592.084340] EFLAGS: 00210206 (2.6.22-rc4 #70) [56592.084340] EIP is at snapshot_read_next+0xcf/0x1d7 [56592.084340] eax: ebx: d96fd200 ecx: c038e8f8 edx: e0688000 [56592.084340] esi: c031c462 edi: e0688186 ebp: ee42df5c esp: ee42df48 [56592.084340] ds: 007b es: 007b fs: gs: 0033 ss: 0068 [56592.084340] Process cat (pid: 22965, ti=ee42c000 task=c7d55480 task.ti=ee42c000) [56592.084340] Stack: 1000 c038e8f8 d96fd200 c038e8f8 0804e000 ee42df70 c0136ba5 d96fd200 [56592.084340]c0136b91 0804e000 ee42df90 c015b26b ee42df9c 0006 1000 d96fd200 [56592.084340]fff7 0804e000 ee42dfb0 c015b5d3 ee42df9c [56592.084340] Call Trace: [56592.084340] [c0104a50] show_trace_log_lvl+0x1a/0x2f [56592.084340] [c0104b00] show_stack_log_lvl+0x9b/0xa3 [56592.084340] [c0104cbc] show_registers+0x1b4/0x286 [56592.084340] [c0104e6d] die+0xdf/0x1b1 [56592.084340] [c01148a0] do_page_fault+0x424/0x4f0 [56592.084340] [c027f90a] error_code+0x6a/0x70 [56592.084340] [c0136ba5] snapshot_read+0x14/0x48 [56592.084340] [c015b26b] vfs_read+0xad/0x15f [56592.084340] [c015b5d3] sys_read+0x3d/0x61 [56592.084340] [c0103b8a] sysenter_past_esp+0x5f/0x85 [56592.084340] === [56592.084340] Code: 03 05 b4 e8 38 c0 40 89 82 98 01 00 00 c1 e0 0c 89 82 9c 01 00 00 a1 a0 e8 38 c0 8b 4d f0 89 41 14 a1 b8 e8 38 c0 a3 c0 e8 38 c0 8b 40 0c c7 05 c8 e8 38 c0 00 00 00 00 c7 05 cc e8 38 c0 ff ff [56592.084340] EIP: [c0135a6e] snapshot_read_next+0xcf/0x1d7 SS:ESP 0068:ee42df48 [56592.101007] swsusp: Basic memory bitmaps freed Looks like it is the access to zone_bm-bm_blocks aka orig_bm.zone_bm_list-bm_blocks. zone_bm_list is NULL unless swsusp_save() is called. I don't see any state variable that would allow an obvious fix though, so I'll leave that to the swsusp guys. Björn - 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/
Re: cat /dev/snapshot == OOPs
On Sunday, 10 June 2007 15:42, Arkadiusz Miskiewicz wrote:
Hello,
Is this desired behaviour?
Obviously not.
$ sudo cat /dev/snapshot
ended with:
[54498.464550] device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) initialised:
[EMAIL PROTECTED]
[56592.077674] swsusp: Basic memory bitmaps created
[56592.084340] BUG: unable to handle kernel NULL pointer dereference at
virtual address 000c
Can you please try the appended patch?
Rafael
Signed-off-by: Rafael J. Wysocki [EMAIL PROTECTED]
---
kernel/power/user.c |4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
Index: linux-2.6.22-rc4/kernel/power/user.c
===
--- linux-2.6.22-rc4.orig/kernel/power/user.c 2007-06-10 19:33:36.0
+0200
+++ linux-2.6.22-rc4/kernel/power/user.c2007-06-10 19:35:59.0
+0200
@@ -99,6 +99,8 @@ static ssize_t snapshot_read(struct file
ssize_t res;
data = filp-private_data;
+ if (!data-ready)
+ return -ENODATA;
res = snapshot_read_next(data-handle, count);
if (res 0) {
if (copy_to_user(buf, data_of(data-handle), res))
@@ -163,7 +165,7 @@ static int snapshot_ioctl(struct inode *
break;
case SNAPSHOT_UNFREEZE:
- if (!data-frozen)
+ if (!data-frozen || data-ready)
break;
mutex_lock(pm_mutex);
thaw_processes();
-
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Re: cat /dev/snapshot == OOPs
On Sunday 10 of June 2007, Rafael J. Wysocki wrote: [54498.464550] device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) initialised: [EMAIL PROTECTED] [56592.077674] swsusp: Basic memory bitmaps created [56592.084340] BUG: unable to handle kernel NULL pointer dereference at virtual address 000c Can you please try the appended patch? [EMAIL PROTECTED] ~]# LC_ALL=C cat /dev/snapshot cat: /dev/snapshot: No data available [ 237.939976] swsusp: Basic memory bitmaps created [ 237.956642] swsusp: Basic memory bitmaps freed no oops with that patch. Rafael -- Arkadiusz MiśkiewiczPLD/Linux Team arekm / maven.plhttp://ftp.pld-linux.org/ - 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/
Re: cat /dev/snapshot == OOPs
10 Haz 2007 Paz tarihinde, Rafael J. Wysocki şunları yazmıştı: Can you please try the appended patch? I cannot reproduce the oops with that patch applied... Cheers -- S.Çağlar Onur [EMAIL PROTECTED] http://cekirdek.pardus.org.tr/~caglar/ Linux is like living in a teepee. No Windows, no Gates and an Apache in house! signature.asc Description: This is a digitally signed message part.
